linux-kernel - Re: repeatable slab corruption with LTP msgctl08

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Message-Id: <20080613014234.ddd01184.akpm@linux-foundation.org>
Date:	Fri, 13 Jun 2008 01:42:34 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Nadia Derbey <Nadia.Derbey@...l.net>
Cc:	Manfred Spraul <manfred@...orfullife.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Pekka Enberg <penberg@...helsinki.fi>,
	Christoph Lameter <clameter@....com>
Subject: Re: repeatable slab corruption with LTP msgctl08

On Fri, 13 Jun 2008 10:33:46 +0200 Nadia Derbey <Nadia.Derbey@...l.net> wrote:

> > Sorry for answering so late (I only saw you e-mail yesterday afternoon).
> > I have just run msgctl08, setting msgmni to 1722 and turning on the SLAB 
> > debug:
> > 
> > CONFIG_SLAB=y
> > CONFIG_SLABINFO=y
> > CONFIG_DEBUG_SLAB=y
> > CONFIG_DEBUG_SLAB_LEAK=y
> > 
> > kernel: linux-2.6.26-rc5-mm1
> > ltp: ltp-full-20080430
> > 
> > But I could not reproduce the bug.
> > 
> > Will try to investigate more.
> > 
> 
> Same result with 2.6.26-rc6.

erk.  It'll make me a week to bisect this.  I suppose I can plod away
at it in the background, but I won't be able to do that until the end
of this month.

> I saw from your config file that you're running a 2.6.26-rc2. Will try 
> with that one.

No, that was just when I last checked in that machine's .config file. 
It was yesterday's mainline, with that .config and `make oldconfig'.
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