Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756707AbYJGQ4r (ORCPT ); Tue, 7 Oct 2008 12:56:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753764AbYJGQ4h (ORCPT ); Tue, 7 Oct 2008 12:56:37 -0400 Received: from testure.choralone.org ([194.9.77.134]:41867 "EHLO testure.choralone.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753390AbYJGQ4g (ORCPT ); Tue, 7 Oct 2008 12:56:36 -0400 Date: Tue, 7 Oct 2008 12:58:39 -0400 From: Dave Jones To: Nick Piggin Cc: "Rafael J. Wysocki" , oleg@tv-sign.ru, Linux Kernel Mailing List , Kernel Testers List , Jean-Luc Coulon , venkatesh.pallipadi@intel.com Subject: Re: [Bug #11264] Invalid op opcode in kernel/workqueue Message-ID: <20081007165839.GA24117@codemonkey.org.uk> Mail-Followup-To: Dave Jones , Nick Piggin , "Rafael J. Wysocki" , oleg@tv-sign.ru, Linux Kernel Mailing List , Kernel Testers List , Jean-Luc Coulon , venkatesh.pallipadi@intel.com References: <0pOgGB.A.uLG.E475IB@wind> <200810080223.03395.nickpiggin@yahoo.com.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200810080223.03395.nickpiggin@yahoo.com.au> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1661 Lines: 39 On Wed, Oct 08, 2008 at 02:23:03AM +1100, Nick Piggin wrote: > On Sunday 05 October 2008 04:32, Rafael J. Wysocki wrote: > > This message has been generated automatically as a part of a report > > of recent regressions. > > > > The following bug entry is on the current list of known regressions > > from 2.6.26. Please verify if it still should be listed and let me know > > (either way). > > > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11264 > > Subject : Invalid op opcode in kernel/workqueue > > Submitter : Jean-Luc Coulon > > Date : 2008-08-07 04:18 (59 days old) > > Any progress being made with this one? Dave, Oleg did some pretty > nice looking debugging work that indicates it might be a cpufreq > problem. Have you had a chance to look at the comments in the > bugzilla? Or have you been cc'ed on patches for this? I'm not convinced that the original report wasn't hardware related. We had taken a machine check exception already, which shows that something isn't quite right. MCEs happening under high load are usually a sign of thermal/power problems of some sort. Oleg's comments may still hold true, independant of the report. I've added Venki to the Cc: as he's recently rewritten considerable amounts of the ondemand governor (though the workqueue mechanics are pretty much the same). Dave -- http://www.codemonkey.org.uk -- 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/