From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755337AbZBWRdj (ORCPT ); Mon, 23 Feb 2009 12:33:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751610AbZBWRd3 (ORCPT ); Mon, 23 Feb 2009 12:33:29 -0500 Received: from courier.cs.helsinki.fi ([128.214.9.1]:46119 "EHLO mail.cs.helsinki.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752057AbZBWRd3 (ORCPT ); Mon, 23 Feb 2009 12:33:29 -0500 Subject: Re: [PATCH] kmemcheck: Disable SLUB and SLAB debugging when kmemcheck is enabled From: Pekka Enberg To: Christoph Lameter Cc: mingo@elte.hu, linux-kernel@vger.kernel.org, vegard.nossum@gmail.com In-Reply-To: References: <1235381712.6216.22.camel@penberg-laptop> Date: Mon, 23 Feb 2009 19:33:26 +0200 Message-Id: <1235410406.6216.69.camel@penberg-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 7bit X-Mailer: Evolution 2.22.3.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2009-02-23 at 10:41 -0500, Christoph Lameter wrote: > 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. Yes, I know that but we can't really let the user enable both, slub debugging and kmemcheck debugging, at run-time. That's why I used SLUB_DEBUG here.