From mboxrd@z Thu Jan  1 00:00:00 1970
From: Yann Dupont <Yann.Dupont@univ-nantes.fr>
Subject: Re: kernel 2.6.37 : oops in cleanup_once
Date: Mon, 14 Mar 2011 11:44:51 +0100
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To: Eric Dumazet <eric.dumazet@gmail.com>
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Le 02/02/2011 16:08, Eric Dumazet a =C3=A9crit :


> I suspect a mem corruption from another layer (not inetpeer)
>
> Unfortunately many kmem caches share the "64 bytes" cache.
>
> Could you please add "slub_nomerge" on your boot command ?
>
=2E..

>
>> -Is there a very severe impact on performance ?
>>
> not at all
>
Maybe there is an impact after all : since then, we don't have problems=
=20
anymore !

linkwood:~# uptime
  11:42:03 up 39 days, 17:08,  3 users,  load average: 0.01, 0.03, 0.05

So... could slub_nomerge hide or simply avoid the problem ?
Or are we just lucky this time ?


--=20
Yann Dupont - Service IRTS, DSI Universit=C3=A9 de Nantes
Tel : 02.53.48.49.20 - Mail/Jabber : Yann.Dupont@univ-nantes.fr