From: Bob Copeland <me@bobcopeland.com>
To: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
linux-ext4@vger.kernel.org,
Vegard Nossum <vegard.nossum@gmail.com>
Subject: Re: 2.6.32-rc6 BUG at mm/slab.c:2869!
Date: Thu, 20 Aug 2009 07:19:37 -0400 [thread overview]
Message-ID: <20090820111937.GF524@hash.localnet> (raw)
In-Reply-To: <84144f020908192208x453ebbd4gecf52eb47903653d@mail.gmail.com>
On Thu, Aug 20, 2009 at 08:08:16AM +0300, Pekka Enberg wrote:
> Someone is stomping on SLAB internal data structures. Ext4 appears in
> both stack traces so I guess we should CC linux-ext4. How easy is it
> to reproduce this bug? One option is to try kmemcheck to see if it
> catches the problem (see Documentation/kmemcheck.txt for details).
I don't yet have a way to reproduce at will but I've anecdotally hit
this or some related bug 3 times in the last week or two without trying,
I only now captured a stack trace. I can try some workload to exercise
the filesystem a bit more to see what turns up.
I'll try that and kmemcheck next.
--
Bob Copeland %% www.bobcopeland.com
next prev parent reply other threads:[~2009-08-20 11:20 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20090820015624.GE524@hash.localnet>
2009-08-20 5:08 ` 2.6.32-rc6 BUG at mm/slab.c:2869! Pekka Enberg
2009-08-20 11:19 ` Bob Copeland [this message]
2009-08-20 12:02 ` Vegard Nossum
2009-08-21 2:06 ` Bob Copeland
2009-08-21 6:46 ` Vegard Nossum
2009-08-21 8:28 ` Vegard Nossum
2009-08-21 13:00 ` Eric Paris
2009-08-21 12:34 ` Eric Paris
2009-08-21 12:36 ` Bob Copeland
2009-08-21 12:39 ` Pekka Enberg
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