From: Yann Dupont <Yann.Dupont@univ-nantes.fr>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: linux-kernel@vger.kernel.org, netdev <netdev@vger.kernel.org>
Subject: Re: kernel 2.6.37 : oops in cleanup_once
Date: Mon, 14 Mar 2011 11:44:51 +0100 [thread overview]
Message-ID: <4D7DF1A3.6020501@univ-nantes.fr> (raw)
In-Reply-To: <1296659336.20445.22.camel@edumazet-laptop>
Le 02/02/2011 16:08, Eric Dumazet a écrit :
> 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 ?
>
...
>
>> -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
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 ?
--
Yann Dupont - Service IRTS, DSI Université de Nantes
Tel : 02.53.48.49.20 - Mail/Jabber : Yann.Dupont@univ-nantes.fr
next prev parent reply other threads:[~2011-03-14 10:52 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4D491B8D.1000107@univ-nantes.fr>
2011-02-02 10:52 ` kernel 2.6.37 : oops in cleanup_once Eric Dumazet
2011-02-02 11:24 ` Eric Dumazet
2011-02-02 13:08 ` Yann Dupont
2011-02-02 14:53 ` Eric Dumazet
2011-02-02 15:04 ` Yann Dupont
2011-02-02 15:08 ` Eric Dumazet
2011-02-02 17:59 ` Yann Dupont
2011-03-14 10:44 ` Yann Dupont [this message]
2011-03-14 13:14 ` Eric Dumazet
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