From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756821AbYELLf3 (ORCPT ); Mon, 12 May 2008 07:35:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753169AbYELLfT (ORCPT ); Mon, 12 May 2008 07:35:19 -0400 Received: from www.church-of-our-saviour.org ([69.25.196.31]:45201 "EHLO thunker.thunk.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753015AbYELLfR (ORCPT ); Mon, 12 May 2008 07:35:17 -0400 Date: Mon, 12 May 2008 07:35:02 -0400 From: Theodore Tso To: Ingo Molnar , "Rafael J. Wysocki" , linux-kernel@vger.kernel.org, Jesse Barnes Subject: Re: Possible regression? 2.6.26-rc1: X61s failure after suspend/resume Message-ID: <20080512113501.GA7687@mit.edu> Mail-Followup-To: Theodore Tso , Ingo Molnar , "Rafael J. Wysocki" , linux-kernel@vger.kernel.org, Jesse Barnes References: <200805082352.04352.rjw@sisk.pl> <20080509024426.GB8871@mit.edu> <20080509094941.GA19617@elte.hu> <20080512020301.GA8390@mit.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080512020301.GA8390@mit.edu> User-Agent: Mutt/1.5.15+20070412 (2007-04-11) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: tytso@mit.edu X-SA-Exim-Scanned: No (on thunker.thunk.org); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, May 11, 2008 at 10:03:01PM -0400, Theodore Tso wrote: > On Fri, May 09, 2008 at 11:49:41AM +0200, Ingo Molnar wrote: > > > > on the off chance that this might be related: could you try to boot with > > nopat? > > I did some more testing, and on my X61s laptop, using a somewhat more > recent snapshot (v2.6.26-rc1-434-g9662369 from Linus's tree Sunday > morning), I was able to reproduce the failure after a suspend/resume > without nopat, but after adding nopat, the problem seems to have gone > away. Actually, it looks like I spoke too quickly. I'll do some more testing, but it looks like either (a) I got lucky, or (b) it's a lot harder to trigger with nopat. In any case, after getting home and docking my workstation, I started a kernel build, and approximately 15 minutes later, the X server hung with the same symptoms as before. - Ted