Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936905AbZDJNLV (ORCPT ); Fri, 10 Apr 2009 09:11:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758133AbZDJNLL (ORCPT ); Fri, 10 Apr 2009 09:11:11 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:47043 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756604AbZDJNLK (ORCPT ); Fri, 10 Apr 2009 09:11:10 -0400 Date: Fri, 10 Apr 2009 15:10:51 +0200 From: Ingo Molnar To: Mikael Pettersson , stable@kernel.org Cc: Peter Zijlstra , linux-kernel@vger.kernel.org, tglx@linutronix.de Subject: Re: [BUG 2.6.29] NMI watchdog triggered in rb_insert_color called from enqueue_hrtimer Message-ID: <20090410131051.GD31307@elte.hu> References: <18908.27242.966881.409415@pilspetsen.it.uu.se> <20090408092452.GA26121@elte.hu> <18908.35477.227662.637308@pilspetsen.it.uu.se> <18909.58298.579959.482372@pilspetsen.it.uu.se> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <18909.58298.579959.482372@pilspetsen.it.uu.se> User-Agent: Mutt/1.5.18 (2008-05-17) 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 Content-Length: 1229 Lines: 35 * Mikael Pettersson wrote: > Mikael Pettersson writes: > > Ingo Molnar writes: > > > > > > * Mikael Pettersson wrote: > > > > > > > Less than an hour after updating a dual Opteron 8384 box from > > > > 2.6.29-rc6 (which it had been running for weeks) to 2.6.29 final > > > > it died with the following watchdog-detected lockup: > > > > > > Could you please check whether this is the bug fixed by: > > > > > > 7f1e2ca: hrtimer: fix rq->lock inversion (again) > > > > I am testing this now and will let you know how it goes. > > The machine has now been running 2.6.29 plus that fix for more > than 24 hours with no problems. Previously it oopsed and hung > within an hour on two separate attempts to run 2.6.29 vanilla. ok, thanks for testing. The fix is now upstream: 7f1e2ca: hrtimer: fix rq->lock inversion (again) -stable team, please pick it up - i just checked, it cherry-picks fine on v2.6.29. Ingo -- 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/