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 F?rster <[email protected]>
Status : Unknown
Subject : long freezes on thinkpad t60
References : http://lkml.org/lkml/2007/5/24/100
Submitter : Miklos Szeredi <[email protected]>
Handled-By : Ingo Molnar <[email protected]>
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 <[email protected]>
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 <[email protected]>
Status : Unknown
Networking
Subject : b44: regression in 2.6.22
References : http://lkml.org/lkml/2007/5/27/108
Submitter : Maximilian Engelhardt <[email protected]>
Handled-By : Michael Buesch <[email protected]>
Status : problem is being debugged
Regards,
Michal
--
"Najbardziej brakowa?o mi twojego milczenia."
-- Andrzej Sapkowski "Co? wi?cej"
> Subject : long freezes on thinkpad t60
> References : http://lkml.org/lkml/2007/5/24/100
> Submitter : Miklos Szeredi <[email protected]>
> Handled-By : Ingo Molnar <[email protected]>
> 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
* Miklos Szeredi <[email protected]> wrote:
> > Subject : long freezes on thinkpad t60
> > References : http://lkml.org/lkml/2007/5/24/100
> > Submitter : Miklos Szeredi <[email protected]>
> > Handled-By : Ingo Molnar <[email protected]>
> > 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
On 6/2/07, Michal Piotrowski <[email protected]> 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.
On Sat, Jun 02, 2007 at 12:43:06AM +0800, Jeff Chua wrote:
> On 6/2/07, Michal Piotrowski <[email protected]> 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
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 <[email protected]>
> Handled-By : Michael Buesch <[email protected]>
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 <[email protected]>
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.
On 6/2/07, Sam Ravnborg <[email protected]> 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.
> 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
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 F?rster <[email protected]>
> 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 ***
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 <[email protected]>
> > 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
