From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756871Ab1AMS6S (ORCPT ); Thu, 13 Jan 2011 13:58:18 -0500 Received: from cavan.codon.org.uk ([93.93.128.6]:46101 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751371Ab1AMS6P (ORCPT ); Thu, 13 Jan 2011 13:58:15 -0500 Date: Thu, 13 Jan 2011 18:58:07 +0000 From: Matthew Garrett To: Thomas Gleixner Cc: Borislav Petkov , Manoj Iyer , "linux-kernel@vger.kernel.org" , "Rafael J. Wysocki" , "Herrmann3, Andreas" Subject: Re: [PATCH] Quirk to fix suspend/resume on Lenovo Edge 11,13,14,15 Message-ID: <20110113185807.GA24720@srcf.ucam.org> References: <1294934542-2411-1-git-send-email-manoj.iyer@canonical.com> <1294934542-2411-2-git-send-email-manoj.iyer@canonical.com> <20110113164616.GB21289@srcf.ucam.org> <20110113172205.GA30866@kryptos.osrc.amd.com> <20110113175531.GD2006@aftab> <20110113183025.GE2006@aftab> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.18 (2008-05-17) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@cavan.codon.org.uk X-SA-Exim-Scanned: No (on cavan.codon.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jan 13, 2011 at 07:51:49PM +0100, Thomas Gleixner wrote: > What's odd is that the machines actually boot. I would have expected > that they do not boot at all if the BIOS IRQ0 pin2 override is > ignored. But it seems that takes effect just when the machine does a > suspend/resume. Weird! The only thing that springs to mind is some BIOS code making incorrect assumptions about timer setup when we trap into it. Is reprogramming the timer back to the boot state over suspend plausible? If so, that'd probably be a more general fix. -- Matthew Garrett | mjg59@srcf.ucam.org