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Date: Mon, 21 Nov 2011 15:21:02 +0100
From: Markus Trippelsdorf <markus@trippelsdorf.de>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: "Alex,Shi" <alex.shi@intel.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
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        Pekka Enberg <penberg@kernel.org>, Matt Mackall <mpm@selenic.com>,
        "netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413
Message-ID: <20111121142102.GA1676@x4.trippels.de>
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On 2011.11.21 at 15:16 +0100, Eric Dumazet wrote:
> Le lundi 21 novembre 2011 à 14:15 +0100, Markus Trippelsdorf a écrit :
> 
> > I've enabled CONFIG_SLUB_DEBUG_ON and this is what happend:
> > 
> 
> Thanks
> 
> Please continue to provide more samples.
> 
> There is something wrong somewhere, but where exactly, its hard to say.
> 
> Something is keeping a pointer to freed memory and reuse it while memory
> had been reused.
> 
> Are you using hugepages ?

Only CONFIG_TRANSPARENT_HUGEPAGE and CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS.

I've increased LOG_BUF_SHIFT to 18, because it looks like the beginning
of the SLUB_DEBUG output was cut off last time.

-- 
Markus