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

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Date:	Wed, 21 Mar 2007 13:42:53 +0200 (EET)
From:	Pekka J Enberg <penberg@...helsinki.fi>
To:	Christoph Lameter <clameter@....com>
cc:	Andrew Morton <akpm@...ux-foundation.org>, mpm@...enic.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 Tue, 20 Mar 2007, Christoph Lameter wrote:
> CONFIG_DEBUG_SLAB is there in order to handle these nasty and hard to 
> debug problems. Usually non-slab pages are not passed to kmem_cache_free.

Yeah, it's probably not a big deal for kmem_cache_free() but if we make 
the BUG_ON CONFIG_DEBUG_SLAB, kfree() loses it as well.

		Pekka
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