From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758898Ab0EMMjg (ORCPT ); Thu, 13 May 2010 08:39:36 -0400 Received: from mx4.sophos.com ([74.202.89.161]:53454 "EHLO mx4.sophos.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753148Ab0EMMjf convert rfc822-to-8bit (ORCPT ); Thu, 13 May 2010 08:39:35 -0400 From: Tvrtko Ursulin Organization: Sophos Plc To: Catalin Marinas Subject: Re: 2.6.33.2 kmalloc-8 slab leaks ~512 objects per second Date: Thu, 13 May 2010 13:39:31 +0100 User-Agent: KMail/1.12.4 (Linux/2.6.34-rc7; KDE/4.3.5; x86_64; ; ) CC: Pekka Enberg , "linux-kernel@vger.kernel.org" , Andrew Morton , David Airlie , "dri-devel@lists.sourceforge.net" , Jerome Glisse References: <201005121121.49135.tvrtko.ursulin@sophos.com> <201005121404.49720.tvrtko.ursulin@sophos.com> In-Reply-To: MIME-Version: 1.0 Message-ID: <201005131339.32113.tvrtko.ursulin@sophos.com> X-MIMETrack: Itemize by SMTP Server on Mercury/Servers/Sophos(Release 7.0.3|September 26, 2007) at 13/05/2010 13:39:32, Serialize by Router on Mercury/Servers/Sophos(Release 7.0.3|September 26, 2007) at 13/05/2010 13:39:33, Serialize complete at 13/05/2010 13:39:33 X-TNEFEvaluated: 1 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thursday 13 May 2010 13:29:49 Catalin Marinas wrote: > Tvrtko Ursulin wrote: > > On Wednesday 12 May 2010 14:00:51 Pekka Enberg wrote: > >> [snip] > >> > >> You might want to try out the built-in kernel memory leak detector. > >> See Documentation/kmemleak.txt for details how to enable it and use > >> it. > > > > Thanks for the suggestion, I will have to try it out once but not this > > time :) because 2.6.34-rc7 seems to be fine, or in other words not > > leaking. > > You could just enable CONFIG_DEBUG_KMEMLEAK on 2.6.33, mount the debugfs > and do a 'cat /sys/kernel/debug/kmemleak' after a half-hour or so. I could do it if radeon/drm guys would be interested in those results? (Given how 2.6.34-rc7 is not leaking.) Tvrtko Sophos Plc, The Pentagon, Abingdon Science Park, Abingdon, OX14 3YP, United Kingdom. Company Reg No 2096520. VAT Reg No GB 348 3873 20.