linux-kernel - Re: [PATCH] slab: deal with NULL pointers passed to kmem_cache

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Date:	Tue, 20 Mar 2007 09:06:41 +0200
From:	"Pekka Enberg" <penberg@...helsinki.fi>
To:	"Andrew Morton" <akpm@...ux-foundation.org>
Cc:	mpm@...enic.com, "Christoph Lameter" <clameter@....com>,
	"ast@...dv.de" <ast@...dv.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] slab: deal with NULL pointers passed to kmem_cache_free

On 3/19/07, Andrew Morton <akpm@...ux-foundation.org> wrote:
> The BUG_ON (at least) should probably be moved into CONFIG_DEBUG_SLAB.

No it shouldn't. Letting non-slab pages pass through causes nasty and
hard to debug problems which is why we have the BUG_ONs in the first
place:

http://lkml.org/lkml/2006/5/8/101

                                           Pekka
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