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Message-ID: <20071114190501.GA5768@elte.hu>
Date: Wed, 14 Nov 2007 20:05:01 +0100
From: Ingo Molnar <mingo@...e.hu>
To: Matt Mackall <mpm@...enic.com>
Cc: "Rafael J. Wysocki" <rjw@...k.pl>,
LKML <linux-kernel@...r.kernel.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [bug] SLOB crash, 2.6.24-rc2
* Matt Mackall <mpm@...enic.com> wrote:
> > > [ 61.245190] rc.sysinit used greatest stack depth: 1680 bytes left
> > > [ 61.386859] list_add corruption. prev->next should be next (407d973c), but was 418cf818. (prev=41877098).
> > > [ 61.396328] ------------[ cut here ]------------
> > > [ 61.400910] kernel BUG at lib/list_debug.c:33!
> > > [ 61.405330] invalid opcode: 0000 [#1] DEBUG_PAGEALLOC
> > >
> > > looks like memory corruption of some sort and it's reproducible. Picking
> > > CONFIG_SLUB makes the crash go away. Booting v2.6.23 with the same
> > > .config works fine.
> >
> > Hmmm, the changes in SLOB since v2.6.23 are all trivial. I'll try to
> > reproduce it with your config, but it doesn't seem promising.
>
> Couldn't reproduce it here, let me know if you get anywhere with your
> bisect.
the bug went away - and the only thing i did was a networking config
tweak. So maybe something in networking corrupts memory? I'm not sure i
can restore the old state. (i had lots of problems with net interface
renaming not working in .24)
Ingo
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