From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756103AbXJ3VIA (ORCPT ); Tue, 30 Oct 2007 17:08:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753463AbXJ3VHx (ORCPT ); Tue, 30 Oct 2007 17:07:53 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.31.123]:52617 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753287AbXJ3VHx (ORCPT ); Tue, 30 Oct 2007 17:07:53 -0400 Date: Tue, 30 Oct 2007 22:08:01 +0100 From: Pavel Machek To: "Rafael J. Wysocki" , Kernel Mailing List , linux-pm@lists.linux-foundation.org, Thomas Gleixner Subject: Re: [2.6.23] IBM X41 looses time after Suspend2Disk Message-ID: <20071030210801.GA1767@elf.ucw.cz> References: <20071029201955.GA1955@titan.lahn.de> <20071029212414.GD3692@elf.ucw.cz> <20071029201955.GA1955@titan.lahn.de> <200710292205.11459.rjw@sisk.pl> <20071030083537.GA2797@titan.lahn.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20071030083537.GA2797@titan.lahn.de> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.16 (2007-06-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue 2007-10-30 09:35:37, Philipp Matthias Hahn wrote: > Hello Rafael, Pavel! > > Thank you both for the fast help. > > On Mon, Oct 29, 2007 at 10:05:10PM +0100, Rafael J. Wysocki wrote: > > On Monday, 29 October 2007 21:19, Philipp Matthias Hahn wrote: > > > I have an IBM X41 tablet pc running 2.6.23 with the following problem: > > > Suspend2Ram work fine, but when I do a Suspend2Disk (echo disk > > > > /sys/power/state), the notebook hangs showing the following lines: > ... > > > Suspending console(s) > > > > > > When I repeatedly press some keys or move the TrackPoint, the SwSusp > > > continues and the notebook powers off. > > > On reboot, the notebook resumes but hangs showing the following screen: > ... > > > Suspending console(s) > > > > > > Generating interrupts by pressing keys or moving the TrackPoints makes > > > the resume continue. But after that, the notebook looses time, xterms > > > don't get updated until I press a key, the beeper beeps until I press a > > > key, etc. > ... > > Please try to do "echo shutdown > /sys/power/disk" before hibernation and > > see what happens. > > I'm already doing that. > > > Also, is it an SMP kernel or UP? > > UP. > > > On Mon, Oct 29, 2007 at 10:24:14PM +0100, Pavel Machek wrote: > > Yep, I seen that before. Try "nohz=off". > > Okay, that seems to solve the "timer loosing time after resume" problem. > > > But I still need to press some keys on suspend (7-12 key presses and > releases) to unhang it. On resume not key presses are needed any > more. So it fixed resume but not suspend? strange. Try highres=off, too. And maybe irqpoll? You may want to try cpu hotplug separately... Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html