linux-kernel - Re: [PATCH] kmemcheck: Disable SLUB and SLAB debugging when kmemcheck is enabled

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Message-ID: <alpine.DEB.1.10.0902231039580.7298@qirst.com>
Date:	Mon, 23 Feb 2009 10:41:08 -0500 (EST)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Pekka Enberg <penberg@...helsinki.fi>
cc:	mingo@...e.hu, linux-kernel@...r.kernel.org,
	vegard.nossum@...il.com
Subject: Re: [PATCH] kmemcheck: Disable SLUB and SLAB debugging when kmemcheck
 is enabled

On Mon, 23 Feb 2009, Pekka Enberg wrote:

> Enabling kmemcheck in Kconfig is a painful experience. Lets make it a
> tad bit easier by inverting the dependencies to SLUB and SLAB debugging.
> As kmemcheck is more powerful than slab debugging, disable the latter
> functionality if an user enables kmemcheck.

SLUB_DEBUG is fundamentally different from SLAB_DEBUG. It only includes
the code to be able to enable debugging at runtime. It does not enable
debugging.

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