From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762859AbXIKIVt (ORCPT ); Tue, 11 Sep 2007 04:21:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761600AbXIKIVk (ORCPT ); Tue, 11 Sep 2007 04:21:40 -0400 Received: from smtp2.linux-foundation.org ([207.189.120.14]:41421 "EHLO smtp2.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761597AbXIKIVj (ORCPT ); Tue, 11 Sep 2007 04:21:39 -0400 Date: Tue, 11 Sep 2007 01:20:05 -0700 From: Andrew Morton To: Thomas Gleixner Cc: Linux Kernel Mailing List , john stultz , Ingo Molnar , "Rafael J. Wysocki" Subject: Re: clockevents: fix resume logic Message-Id: <20070911012005.4df3ddf4.akpm@linux-foundation.org> In-Reply-To: <1189496840.22589.1.camel@chaos> References: <200707220159.l6M1xBgH001236@hera.kernel.org> <20070910144740.4eba2fda.akpm@linux-foundation.org> <1189492636.25767.62.camel@chaos> <20070911000001.30f8590b.akpm@linux-foundation.org> <1189495400.25767.81.camel@chaos> <1189496840.22589.1.camel@chaos> X-Mailer: Sylpheed 2.4.1 (GTK+ 2.8.17; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 11 Sep 2007 09:47:20 +0200 Thomas Gleixner wrote: > On Tue, 2007-09-11 at 09:23 +0200, Thomas Gleixner wrote: > > > I went back to the original patch which I sent to Linus and it matches > > > 18de5bc4c1f1f1fa5e14f354a7603bd6e9d4e3b6. So all I can think is that there > > > must have been something else in the tree which I tested which fixed the > > > bug which 18de5bc4c1f1f1fa5e14f354a7603bd6e9d4e3b6 introduced. argh. > > > > > > Can you think what would cause the symptoms which I described? > > > > It seems that time is not updated. Timer interrupt not active or some > > other odd thing. I figure out what's going on when I find a box which > > exposes the problem. 2.6.22-rc6-mm1's git-acpi.patch contains something which fixes this bug. It's a quarter megabyte :( Presumably clockevents-fix-resume-logic.patch depended on something which was in that git-acpi.patch but which for some reason didn't get merged. Ho hum, I'll take a look, see if I can spot it. > Can you please try the following command line options: > > nolapic_timer Works > nohz=off Fails > highres=off Fails > nohz=off highres=off Works