From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753484AbYDBH3U (ORCPT ); Wed, 2 Apr 2008 03:29:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751404AbYDBH3M (ORCPT ); Wed, 2 Apr 2008 03:29:12 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:57653 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750885AbYDBH3L (ORCPT ); Wed, 2 Apr 2008 03:29:11 -0400 Date: Wed, 2 Apr 2008 09:28:46 +0200 From: Ingo Molnar To: Jens Axboe Cc: Pekka J Enberg , Peter Zijlstra , Vegard Nossum , Linux Kernel Mailing List , "Paul E. McKenney" Subject: Re: kmemcheck caught read from freed memory (cfq_free_io_context) Message-ID: <20080402072846.GA16454@elte.hu> References: <19f34abd0804011408v19e13b6cje1ca89a2a471484c@mail.gmail.com> <1207085788.29991.6.camel@lappy> <20080402071709.GC12774@kernel.dk> <20080402072456.GI12774@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080402072456.GI12774@kernel.dk> User-Agent: Mutt/1.5.17 (2007-11-01) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Jens Axboe wrote: > On Wed, Apr 02 2008, Pekka J Enberg wrote: > > On Wed, 2 Apr 2008, Jens Axboe wrote: > > > Good catch, I wonder why it didn't complain in my testing. I've added a > > > patch to fix that, please see it here: > > > > You probably don't have kmemcheck in your kernel ;-) > > Ehm no, you are right :) ... and you can get kmemcheck by testing on x86.git/latest: http://people.redhat.com/mingo/x86.git/README ;-) Ingo