From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753481AbYDWSQZ (ORCPT ); Wed, 23 Apr 2008 14:16:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753504AbYDWSPc (ORCPT ); Wed, 23 Apr 2008 14:15:32 -0400 Received: from hpsmtp-eml13.kpnxchange.com ([213.75.38.113]:11362 "EHLO hpsmtp-eml13.kpnxchange.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753630AbYDWSP3 (ORCPT ); Wed, 23 Apr 2008 14:15:29 -0400 From: Frans Pop To: "Pekka Enberg" Subject: Re: [sched-devel/latest] WARNING: at mm/slub.c:2443 Date: Wed, 23 Apr 2008 20:15:26 +0200 User-Agent: KMail/1.9.9 Cc: "Pete Zaitcev" , "Ingo Molnar" , linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, gregkh@suse.de, "Christoph Lameter" References: <200804212310.41729.elendil@planet.nl> <20080423101123.a69e4945.zaitcev@redhat.com> <84144f020804231035w3fdb10aax4b90dc4e0bc1957d@mail.gmail.com> In-Reply-To: <84144f020804231035w3fdb10aax4b90dc4e0bc1957d@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200804232015.27257.elendil@planet.nl> X-OriginalArrivalTime: 23 Apr 2008 18:15:27.0754 (UTC) FILETIME=[01EFD6A0:01C8A56E] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 23 April 2008, Pekka Enberg wrote: > Well, a race in mon_text_release() after the kmem_cache_free() loop > and the call to kmem_cache_destroy() but looks like that can't happen > either. Frans, is this easily triggerable? If so, can you try with > CONFIG_SLAB and CONFIG_DEBUG_SLAB enabled instead? Not really. I've only seen it once two days ago and not at all today while I was doing the traces for the scheduling issue. I can give it a go, but I'm not yet ready to switch to current git on this box for longer periods (although so far I've actually had less issues than with .24-rc1; fingers crossed). If I get anything I'll follow up.