[1/3] 2.6.22-rc3: known regressions v2

[1/3] 2.6.22-rc3: known regressions v2

[Michal Piotrowski]

Hi all,

Here is a list of some known regressions in 2.6.22-rc3.

Feel free to add new regressions/remove fixed etc.
http://kernelnewbies.org/known_regressions



Unclassified

Subject    : build failed in function `vic_sys_interrupt'
References : http://lkml.org/lkml/2007/5/31/227
Submitter  : Toralf Förster <toralf.foerster-Mmb7MZpHnFY@public.gmane.org>
Status     : Unknown

Subject    : long freezes on thinkpad t60
References : http://lkml.org/lkml/2007/5/24/100
Submitter  : Miklos Szeredi <miklos-sUDqSbJrdHQHWmgEVkV9KA@public.gmane.org>
Handled-By : Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org>
Status     : problem is being debugged



ACPI

Subject    : unable to shutdown on kernel 2.6.22-rc2
References : http://bugzilla.kernel.org/show_bug.cgi?id=8516
Submitter  : Thierry Volpiatto <tvolpiatt-8puV8OjpVw0@public.gmane.org>
Status     : Unknown



ALSA

Subject    : snd-aoa causes badness in lib/kref.c:33
References : http://bugzilla.kernel.org/show_bug.cgi?id=8513
Submitter  : Ben Collins <bcollins-GeWIH/nMZzLQT0dZR+AlfA@public.gmane.org>
Status     : Unknown



Networking

Subject    : b44: regression in 2.6.22
References : http://lkml.org/lkml/2007/5/27/108
Submitter  : Maximilian Engelhardt <maxi-OwNUvPV92VfddJNmlsFzeA@public.gmane.org>
Handled-By : Michael Buesch <mb-fseUSCV1ubazQB+pC5nmwQ@public.gmane.org>
Status     : problem is being debugged



Regards,
Michal

--
"Najbardziej brakowało mi twojego milczenia."
-- Andrzej Sapkowski "Coś więcej"

[1/3] 2.6.22-rc3: known regressions v2

[Michal Piotrowski]

Hi all,

Here is a list of some known regressions in 2.6.22-rc3.

=46eel free to add new regressions/remove fixed etc.
http://kernelnewbies.org/known_regressions



Unclassified

Subject    : build failed in function `vic_sys_interrupt'
References : http://lkml.org/lkml/2007/5/31/227
Submitter  : Toralf F=F6rster <toralf.foerster@gmx.de>
Status     : Unknown

Subject    : long freezes on thinkpad t60
References : http://lkml.org/lkml/2007/5/24/100
Submitter  : Miklos Szeredi <miklos@szeredi.hu>
Handled-By : Ingo Molnar <mingo@elte.hu>
Status     : problem is being debugged



ACPI

Subject    : unable to shutdown on kernel 2.6.22-rc2
References : http://bugzilla.kernel.org/show_bug.cgi?id=3D8516
Submitter  : Thierry Volpiatto <tvolpiatt@neuf.fr>
Status     : Unknown



ALSA

Subject    : snd-aoa causes badness in lib/kref.c:33
References : http://bugzilla.kernel.org/show_bug.cgi?id=3D8513
Submitter  : Ben Collins <bcollins@ubuntu.com>
Status     : Unknown



Networking

Subject    : b44: regression in 2.6.22
References : http://lkml.org/lkml/2007/5/27/108
Submitter  : Maximilian Engelhardt <maxi@daemonizer.de>
Handled-By : Michael Buesch <mb@bu3sch.de>
Status     : problem is being debugged



Regards,
Michal

--
"Najbardziej brakowa=B3o mi twojego milczenia."
-- Andrzej Sapkowski "Co=B6 wi=EAcej"

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[1/3] 2.6.22-rc3: known regressions v2

[Michal Piotrowski]

Hi all,

Here is a list of some known regressions in 2.6.22-rc3.

Feel free to add new regressions/remove fixed etc.
http://kernelnewbies.org/known_regressions



Unclassified

Subject    : build failed in function `vic_sys_interrupt'
References : http://lkml.org/lkml/2007/5/31/227
Submitter  : Toralf Förster <toralf.foerster@gmx.de>
Status     : Unknown

Subject    : long freezes on thinkpad t60
References : http://lkml.org/lkml/2007/5/24/100
Submitter  : Miklos Szeredi <miklos@szeredi.hu>
Handled-By : Ingo Molnar <mingo@elte.hu>
Status     : problem is being debugged



ACPI

Subject    : unable to shutdown on kernel 2.6.22-rc2
References : http://bugzilla.kernel.org/show_bug.cgi?id=8516
Submitter  : Thierry Volpiatto <tvolpiatt@neuf.fr>
Status     : Unknown



ALSA

Subject    : snd-aoa causes badness in lib/kref.c:33
References : http://bugzilla.kernel.org/show_bug.cgi?id=8513
Submitter  : Ben Collins <bcollins@ubuntu.com>
Status     : Unknown



Networking

Subject    : b44: regression in 2.6.22
References : http://lkml.org/lkml/2007/5/27/108
Submitter  : Maximilian Engelhardt <maxi@daemonizer.de>
Handled-By : Michael Buesch <mb@bu3sch.de>
Status     : problem is being debugged



Regards,
Michal

--
"Najbardziej brakowało mi twojego milczenia."
-- Andrzej Sapkowski "Coś więcej"

Re: [1/3] 2.6.22-rc3: known regressions v2

[Miklos Szeredi]

> Subject    : long freezes on thinkpad t60
> References : http://lkml.org/lkml/2007/5/24/100
> Submitter  : Miklos Szeredi <miklos@szeredi.hu>
> Handled-By : Ingo Molnar <mingo@elte.hu>
> Status     : problem is being debugged

This isn't a regression strictly speaking, as 2.6.21 is known to be
affected, and older kernels might also be.

It's non-fatal and only happens under very special circumstances, so
it's definitely not a showstopper.

I don't mind being bugged about this once in a while, this is just for
clarification.

Miklos

Re: [1/3] 2.6.22-rc3: known regressions v2

[Ingo Molnar]

* Miklos Szeredi <miklos@szeredi.hu> wrote:

> > Subject    : long freezes on thinkpad t60
> > References : http://lkml.org/lkml/2007/5/24/100
> > Submitter  : Miklos Szeredi <miklos@szeredi.hu>
> > Handled-By : Ingo Molnar <mingo@elte.hu>
> > Status     : problem is being debugged
> 
> This isn't a regression strictly speaking, as 2.6.21 is known to be 
> affected, and older kernels might also be.
> 
> It's non-fatal and only happens under very special circumstances, so 
> it's definitely not a showstopper.
> 
> I don't mind being bugged about this once in a while, this is just for 
> clarification.

i have no better ideas that what you already tried - but unfortunately 
the tracer makes the bug go away and the NMI watchdog crashes your box. 
Btw., nmi_watchdog=2 might have a higher chance of surviving (it can 
still lock up a T60 but with a lower likelyhood).

	Ingo

Re: [1/3] 2.6.22-rc3: known regressions v2

[Jeff Chua]

Can you please add this ...

Got this only after "recompile". "make clean" will make the warnings go away.

 SYSMAP  System.map
 SYSMAP  .tmp_System.map
 MODPOST vmlinux
WARNING: arch/i386/kernel/built-in.o(.text+0xa677): Section mismatch:
reference to .init.text: (between 'init_intel_cacheinfo' and
'cache_shared_cpu_map_setup')
WARNING: arch/i386/kernel/built-in.o(.text+0xb8c0): Section mismatch:
reference to .init.text: (between 'mtrr_bp_init' and 'mtrr_ap_init')
WARNING: arch/i386/kernel/built-in.o(.text+0xba79): Section mismatch:
reference to .init.text: (between 'mtrr_bp_init' and 'mtrr_ap_init')
WARNING: arch/i386/kernel/built-in.o(.text+0xba7e): Section mismatch:
reference to .init.text: (between 'mtrr_bp_init' and 'mtrr_ap_init')
WARNING: arch/i386/kernel/built-in.o(.text+0xc4a0): Section mismatch:
reference to .init.text: (between 'get_mtrr_state' and 'mtrr_wrmsr')
WARNING: kernel/built-in.o(.text+0x17437): Section mismatch: reference
to .init.text: (between 'kthreadd' and 'init_waitqueue_head')
 AS      arch/i386/boot/setup.o
 LD      arch/i386/boot/setup
 OBJCOPY arch/i386/boot/compressed/vmlinux.bin


Thanks,
Jeff.

On 6/1/07, Michal Piotrowski <michal.k.k.piotrowski@gmail.com> wrote:
> Hi all,
>
> Here is a list of some known regressions in 2.6.22-rc3.
>
> Feel free to add new regressions/remove fixed etc.
> http://kernelnewbies.org/known_regressions
>
>
>
> Unclassified
>
> Subject    : build failed in function `vic_sys_interrupt'
> References : http://lkml.org/lkml/2007/5/31/227
> Submitter  : Toralf Förster <toralf.foerster@gmx.de>
> Status     : Unknown
>
> Subject    : long freezes on thinkpad t60
> References : http://lkml.org/lkml/2007/5/24/100
> Submitter  : Miklos Szeredi <miklos@szeredi.hu>
> Handled-By : Ingo Molnar <mingo@elte.hu>
> Status     : problem is being debugged
>
>
>
> ACPI
>
> Subject    : unable to shutdown on kernel 2.6.22-rc2
> References : http://bugzilla.kernel.org/show_bug.cgi?id=8516
> Submitter  : Thierry Volpiatto <tvolpiatt@neuf.fr>
> Status     : Unknown
>
>
>
> ALSA
>
> Subject    : snd-aoa causes badness in lib/kref.c:33
> References : http://bugzilla.kernel.org/show_bug.cgi?id=8513
> Submitter  : Ben Collins <bcollins@ubuntu.com>
> Status     : Unknown
>
>
>
> Networking
>
> Subject    : b44: regression in 2.6.22
> References : http://lkml.org/lkml/2007/5/27/108
> Submitter  : Maximilian Engelhardt <maxi@daemonizer.de>
> Handled-By : Michael Buesch <mb@bu3sch.de>
> Status     : problem is being debugged
>
>
>
> Regards,
> Michal
>
> --
> "Najbardziej brakowało mi twojego milczenia."
> -- Andrzej Sapkowski "Coś więcej"
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/
>

Re: [1/3] 2.6.22-rc3: known regressions v2

[Jeff Chua]

On 6/2/07, Michal Piotrowski <michal.k.k.piotrowski@gmail.com> wrote:

> I think that Sam is working on this.

I'm a bit lost looking at those patches and don't know which ones are
the appropriate ones I should I apply?

Thanks,
Jeff.

Re: [1/3] 2.6.22-rc3: known regressions v2

[Sam Ravnborg]

On Sat, Jun 02, 2007 at 12:43:06AM +0800, Jeff Chua wrote:
> On 6/2/07, Michal Piotrowski <michal.k.k.piotrowski@gmail.com> wrote:
> 
> >I think that Sam is working on this.
> 
> I'm a bit lost looking at those patches and don't know which ones are
> the appropriate ones I should I apply?
The fix is in -mm and sent to Andi.
So it will likely be merged soon.

I recommemd to ignore the warnings for now.

	Sam

Re: [1/3] 2.6.22-rc3: known regressions v2

[Michael Buesch]

On Friday 01 June 2007 14:20:44 Michal Piotrowski wrote:
> Networking
> 
> Subject    : b44: regression in 2.6.22
> References : http://lkml.org/lkml/2007/5/27/108
> Submitter  : Maximilian Engelhardt <maxi-OwNUvPV92VfddJNmlsFzeA@public.gmane.org>
> Handled-By : Michael Buesch <mb-fseUSCV1ubazQB+pC5nmwQ@public.gmane.org>

Well, it looks like a highres-timers problem or something
like that. So I can't really be handling that, as I have no
clue about this.
I suggest you also add Gary Zambrano <zambrano-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
here, as he is actually the maintainer of b44. Not me.
My role was just helping in debugging the issue, as I know
some details of b44.

> Status     : problem is being debugged



-- 
Greetings Michael.

Re: [1/3] 2.6.22-rc3: known regressions v2

[Michael Buesch]

On Friday 01 June 2007 14:20:44 Michal Piotrowski wrote:
> Networking
> 
> Subject    : b44: regression in 2.6.22
> References : http://lkml.org/lkml/2007/5/27/108
> Submitter  : Maximilian Engelhardt <maxi@daemonizer.de>
> Handled-By : Michael Buesch <mb@bu3sch.de>

Well, it looks like a highres-timers problem or something
like that. So I can't really be handling that, as I have no
clue about this.
I suggest you also add Gary Zambrano <zambrano@broadcom.com>
here, as he is actually the maintainer of b44. Not me.
My role was just helping in debugging the issue, as I know
some details of b44.

> Status     : problem is being debugged



-- 
Greetings Michael.

Re: [1/3] 2.6.22-rc3: known regressions v2

[Jeff Chua]

On 6/2/07, Sam Ravnborg <sam@ravnborg.org> wrote:

> The fix is in -mm and sent to Andi.
> So it will likely be merged soon.
>
> I recommemd to ignore the warnings for now.

Thanks, I'll check when the next rc4 is ready.

Jeff.

Re: [1/3] 2.6.22-rc3: known regressions v2

[Miklos Szeredi]

> i have no better ideas that what you already tried - but unfortunately 
> the tracer makes the bug go away and the NMI watchdog crashes your box. 
> Btw., nmi_watchdog=2 might have a higher chance of surviving (it can 
> still lock up a T60 but with a lower likelyhood).

Good tip, nmi_watchdog=2 worked.  Unlike the previous freezes, after
this one it didn't continue after some minutes.  Don't know if that's
because the NMI oopser changed something, or if this is a slightly
different lockup...

No serial port on this laptop, so screenshot done with digicam:

  http://www.kernel.org/pub/linux/kernel/people/mszeredi/freeze/nmioops.jpg

Here are the transcribed stack traces:

CPU1
process: strace
 _spin_lock
 task_rq_lock
 wait_task_inactive
 ptrace_check_attach
 sys_ptrace

CPU0
process: fusexmp_fh (this is one of several similar threads being straced)
 _spin_lock_irq
 schedule
 ptrace_stop
 ptrace_notify
 syscall_trace
 syscall_trace_enter
 tracesys

Both these seem to be spinning on rq->lock, but who is holding this
lock?

Miklos

Re: [1/3] 2.6.22-rc3: known regressions v2

[Randy Dunlap]

On Fri, 01 Jun 2007 14:20:44 +0200 Michal Piotrowski wrote:

> Hi all,
> 
> Here is a list of some known regressions in 2.6.22-rc3.
> 
> Feel free to add new regressions/remove fixed etc.
> http://kernelnewbies.org/known_regressions
> 
> 
> Unclassified
> 
> Subject    : build failed in function `vic_sys_interrupt'
> References : http://lkml.org/lkml/2007/5/31/227
> Submitter  : Toralf Förster <toralf.foerster@gmx.de>
> Status     : Unknown

I probably wouldn't call a randconfig build problem a regression.

James, does Voyager support SMP=n now?


---
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***

Re: [1/3] 2.6.22-rc3: known regressions v2

[James Bottomley]

On Sat, 2007-06-02 at 16:13 -0700, Randy Dunlap wrote:
> On Fri, 01 Jun 2007 14:20:44 +0200 Michal Piotrowski wrote:
> 
> > Hi all,
> > 
> > Here is a list of some known regressions in 2.6.22-rc3.
> > 
> > Feel free to add new regressions/remove fixed etc.
> > http://kernelnewbies.org/known_regressions
> > 
> > 
> > Unclassified
> > 
> > Subject    : build failed in function `vic_sys_interrupt'
> > References : http://lkml.org/lkml/2007/5/31/227
> > Submitter  : Toralf Förster <toralf.foerster@gmx.de>
> > Status     : Unknown
> 
> I probably wouldn't call a randconfig build problem a regression.
> 
> James, does Voyager support SMP=n now?

No, this is a longstanding bug that I keep meaning to find time to fix.

James

Re: [1/3] 2.6.22-rc3: known regressions v2

[Thomas Renninger]

CCs stripped...

On Fri, 2007-06-01 at 14:20 +0200, Michal Piotrowski wrote:
> Hi all,
> 
> Here is a list of some known regressions in 2.6.22-rc3.
> 
> Feel free to add new regressions/remove fixed etc.
> http://kernelnewbies.org/known_regressions
> 

> Subject    : long freezes on thinkpad t60
> References : http://lkml.org/lkml/2007/5/24/100
> Submitter  : Miklos Szeredi <miklos@szeredi.hu>
> Handled-By : Ingo Molnar <mingo@elte.hu>
> Status     : problem is being debugged

I saw the same phenomenon on a totally other machine (therefore it's
likely something else):
Long periods (10-100s) of total unresponsiveness, not even SysRq-*
working.

In my case it was a HP nx6125, beeing unresponsive for about 5s, also
e.g. NUM Led did not work (but was still set after the unresponsive
phase ended).
Looks like machine got stuck with irqs disabled?

It came out that the problem was related to cpufreq (the real cause
probably came from ACPI subsytem). The freq was limited via processor
(_PPC) event and limitation got removed again at the same time, letting
the machine switching down and up it hang in powernow-k8.
Yes, it's unlikely that it's the same problem, but disabling cpufreq
should be worth a test?

Trying a kernel with CONFIG_DETECT_SOFTLOCKUP lockup should tell you at
which place the machine hangs?

   Thomas