linux-kernel - Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413

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Message-ID: <alpine.DEB.2.00.1111211539420.10548@router.home>
Date:	Mon, 21 Nov 2011 15:43:10 -0600 (CST)
From:	Christoph Lameter <cl@...ux.com>
To:	Pekka Enberg <penberg@...nel.org>
cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Markus Trippelsdorf <markus@...ppelsdorf.de>,
	Eric Dumazet <eric.dumazet@...il.com>,
	"Alex,Shi" <alex.shi@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	Matt Mackall <mpm@...enic.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	Tejun Heo <tj@...nel.org>,
	Christian Kujau <lists@...dbynature.de>
Subject: Re: WARNING: at mm/slub.c:3357, kernel BUG at mm/slub.c:3413

On Mon, 21 Nov 2011, Pekka Enberg wrote:

> Does CONFIG_SLAB make all the issues go away or are you still able to
> reproduce corruption with it? I'm asking because we have the per-cpu
> partial list patches in 3.2-rc1 and I'd like to rule them out as a
> suspect.

SLAB does not have the same capabilities to detect corruption.

You can disable most the cpu partial functionality by setting

	/sys/kernel/slab/*/cpu_partial

to 0


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