Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751513AbXE3GwS (ORCPT ); Wed, 30 May 2007 02:52:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751135AbXE3GwK (ORCPT ); Wed, 30 May 2007 02:52:10 -0400 Received: from mail.gmx.net ([213.165.64.20]:37501 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751119AbXE3GwI (ORCPT ); Wed, 30 May 2007 02:52:08 -0400 X-Authenticated: #5039886 X-Provags-ID: V01U2FsdGVkX19xnm0pA9Fx9vPSRSNYw7yMgET3Ujf/eC8PbGKCud wngyJgQHDwHH6a Date: Wed, 30 May 2007 08:52:04 +0200 From: =?iso-8859-1?Q?Bj=F6rn?= Steinbrink To: Thomas Gleixner Cc: Michal Piotrowski , Ian Kumlien , Linux-kernel@vger.kernel.org, Ingo Molnar , Arjan van de Ven Subject: Re: [BUG] Something goes wrong with timer statistics. Message-ID: <20070530065204.GA2226@atjola.homenet> Mail-Followup-To: =?iso-8859-1?Q?Bj=F6rn?= Steinbrink , Thomas Gleixner , Michal Piotrowski , Ian Kumlien , Linux-kernel@vger.kernel.org, Ingo Molnar , Arjan van de Ven References: <1180474738.22497.25.camel@pi.pomac.com> <6bffcb0e0705291524y2752d646p94b0bf6ca87af68f@mail.gmail.com> <1180478288.20546.39.camel@chaos> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1180478288.20546.39.camel@chaos> User-Agent: Mutt/1.5.13 (2006-08-11) X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1163 Lines: 32 On 2007.05.30 00:38:08 +0200, Thomas Gleixner wrote: > On Wed, 2007-05-30 at 00:24 +0200, Michal Piotrowski wrote: > > Hi Ian, > > > > (Thomas "The Wizard of Time" added to CC :)) > > Added more wizards :) > > > On 29/05/07, Ian Kumlien wrote: > > > Hi, > > > > > > As the daystar sets, i try to play some with my new would be > > > firewall/server, but since this will be running for quite some time i > > > have been experimenting with powertop to find out what i can do to limit > > > it's power usage. > > > > > > But, if i run powertop for too long or a few times to many... this > > > happens: > > > http://pomac.netswarm.net/pics/kernel_panic.jpg > > This was reported before. It's incredibly hard to reproduce. Hm, tstats_write() only grabs show_mutex, but it calls reset_entries() which happily messes with the entries table, shouldn't the table_lock also be held in that case? Bj?rn - 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/