From: Andi Kleen <ak@suse.de>
To: Dave Jones <davej@redhat.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: frequent slab corruption (since a long time)
Date: 02 Aug 2006 05:37:28 +0200 [thread overview]
Message-ID: <p73fygfzu2v.fsf@verdi.suse.de> (raw)
In-Reply-To: <20060802021617.GH22589@redhat.com>
Dave Jones <davej@redhat.com> writes:
> Every so often, I see a slab corruption bug reported against
> the Fedora kernels (going back as far as 2.6.11), and it's
> still plagueing us.
>
> It seems to have turned up in a number of different scenarios,
> which makes it all the more complicated, but the footprint is
> always the same. We write ffffffff00000000 to freed memory.
DEBUG_PAGEALLOC + a small slab patch to force the 2k slab to be
only a single object per page (so that a kfree() immediately
triggers an unmap) would catch it I guess.
-Andi
next prev parent reply other threads:[~2006-08-02 3:37 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-02 2:16 frequent slab corruption (since a long time) Dave Jones
2006-08-02 2:34 ` Roland Dreier
2006-08-02 3:37 ` Andi Kleen [this message]
2006-08-02 4:22 ` Dave Jones
2006-08-02 4:35 ` Andi Kleen
2006-08-02 4:46 ` Dave Jones
2006-08-02 5:05 ` David Miller
2006-08-02 5:31 ` David Miller
2006-08-02 22:23 ` Dave Jones
2006-08-02 22:49 ` David Miller
2006-08-03 17:40 ` Alan Cox
2006-08-03 17:56 ` Dave Jones
2006-08-03 20:48 ` Alan Cox
2006-08-02 23:14 ` Alan Cox
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