Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760630AbXJMDhN (ORCPT ); Fri, 12 Oct 2007 23:37:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752187AbXJMDhB (ORCPT ); Fri, 12 Oct 2007 23:37:01 -0400 Received: from mail.gmx.net ([213.165.64.20]:56213 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752527AbXJMDhA (ORCPT ); Fri, 12 Oct 2007 23:37:00 -0400 X-Authenticated: #14349625 X-Provags-ID: V01U2FsdGVkX19/h3UjgaB/x3Dwv6wKZfSRR+LAe1drQXkobwSzLv 42RKhNOIXt4vqn Subject: Re: kernel NULL pointer dereference in check_spread+0x0/0x26 From: Mike Galbraith To: Jan Blunck Cc: mingo@redhat.com, Linux-Kernel Mailinglist , Andrew Morton In-Reply-To: <20071012124054.GD8471@hasse.suse.de> References: <20071012124054.GD8471@hasse.suse.de> Content-Type: text/plain Date: Sat, 13 Oct 2007 05:36:56 +0200 Message-Id: <1192246616.7395.21.camel@Homer.simpson.net> Mime-Version: 1.0 X-Mailer: Evolution 2.8.2 Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 753 Lines: 24 On Fri, 2007-10-12 at 14:40 +0200, Jan Blunck wrote: > This is with 2.6.23-mm1 and allmodconfig. > > Seems that se in the following is a NULL pointer. > > 453 static void check_spread(struct cfs_rq *cfs_rq, struct > sched_entity *se) > 454 { > 455 #ifdef CONFIG_SCHED_DEBUG > 456 s64 d = se->vruntime - cfs_rq->min_vruntime; > 457 > 458 if (d < 0) > 459 d = -d; I hit this once yesterday (in sched-devel), and again first boot this morning. -Mike - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/