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Date: Mon, 30 Jul 2007 11:05:09 -0700 (PDT)
From: Christoph Lameter <clameter@sgi.com>
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To: Robert Schwebel <r.schwebel@pengutronix.de>
cc: Andrew Morton <akpm@linux-foundation.org>, linux-kernel@vger.kernel.org,
       Pekka Enberg <penberg@cs.helsinki.fi>
Subject: Re: bug in slab.c
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 <20070730001604.d58dca0a.akpm@linux-foundation.org> <20070730180301.GG1678@pengutronix.de>
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On Mon, 30 Jul 2007, Robert Schwebel wrote:

> On Mon, Jul 30, 2007 at 12:16:04AM -0700, Andrew Morton wrote:
> > > My Dell Latitude D520 just dies with this BUG:
> >
> > Reproducible, I assume.
> 
> No, happened only one time.

Looks like the slab header was corrupted. If this can be reproduced then 
you need to enable slub debugging to find the kernel function that 
corrupts memory.

Otherwise it could be bad memory?