Re: [Bug #13941] x86 Geode issue

Martin-Éric Racine
2009-08-16T19:17:04Z

On Thu, Aug 13, 2009 at 9:34 PM, Rafael J. Wysocki<rjw-KKrjLPT3xs0@public.gmane.org> wrote:
> On Thursday 13 August 2009, Martin-Éric Racine wrote:
>> On Thu, Aug 13, 2009 at 5:54 PM, Rafael J. Wysocki<rjw-KKrjLPT3xs0@public.gmane.org> wrote:
>> > On Thursday 13 August 2009, Martin-Éric Racine wrote:
>> >> 2009/8/13 Martin-Éric Racine <q-funk-X3B1VOXEql0@public.gmane.org>:
>> >> > On Thu, Aug 13, 2009 at 12:07 PM, Ingo Molnar<mingo-X9Un+BFzKDI@public.gmane.org> wrote:
>> >> >> * Martin-Éric Racine <q-funk-X3B1VOXEql0@public.gmane.org> wrote:
>> >> >>> Yes, this bug is still valid.
>> >> >>>
>> >> >>> Ubuntu kernel team member Leann Ogasawara and I are slowly
>> >> >>> bisecting our way through the changes that took place since 2.6.30
>> >> >>> to find the commit that introduced this regression. Please stay
>> >> >>> tuned.
>> >> >>
>> >> >> hm, the only outright Geode related commit was:
>> >> >>
>> >> >>  d6c585a: x86: geode: Mark mfgpt irq IRQF_TIMER to prevent resume failure
>> >> >>
>> >> >> the jpg at:
>> >> >>
>> >> >>  http://launchpadlibrarian.net/28892781/00002.jpg
>> >> >>
>> >> >> is very out of focus - but what i could decypher suggests a
>> >> >> pagefault crash in the VFS code, in generic_delete_inode().
>> >>
>> >> This one might be a bit better:
>> >>
>> >> http://launchpadlibrarian.net/30267494/2.6.31-5.24.jpg
>
> Hmm.  This looks like a sysfs oops to my untrained eye.

The bisect I did with Leann Ogasawara has narrowed the kernel panic
down to the following:

commit f19d4a8fa6f9b6ccf54df0971c97ffcaa390b7b0
Author: Al Viro <viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
Date: Mon Jun 8 19:50:45 2009 -0400

add caching of ACLs in struct inode

No helpers, no conversions yet.

Signed-off-by: Al Viro <viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org>

Best Regards,
Martin-Éric