From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751912AbXBVVZ2 (ORCPT ); Thu, 22 Feb 2007 16:25:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751919AbXBVVZ1 (ORCPT ); Thu, 22 Feb 2007 16:25:27 -0500 Received: from rhlx01.hs-esslingen.de ([129.143.116.10]:53229 "EHLO rhlx01.hs-esslingen.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751912AbXBVVZZ (ORCPT ); Thu, 22 Feb 2007 16:25:25 -0500 Date: Thu, 22 Feb 2007 22:25:24 +0100 From: Andreas Mohr To: Pierre Ossman Cc: Arjan van de Ven , tglx@linutronix.de, Jan Engelhardt , Luca Tettamanti , linux-kernel@vger.kernel.org Subject: Re: NO_HZ: timer interrupt stuck [Re: Linux 2.6.21-rc1] Message-ID: <20070222212524.GA16830@rhlx01.hs-esslingen.de> References: <1172150712.3531.265.camel@laptopd505.fenrus.org> <45DDA43A.4030509@drzeus.cx> <1172154034.3531.270.camel@laptopd505.fenrus.org> <45DDADEB.3030309@drzeus.cx> <45DDB31C.8070306@drzeus.cx> <1172160024.25076.188.camel@localhost.localdomain> <45DDC488.1080008@drzeus.cx> <1172162526.3531.275.camel@laptopd505.fenrus.org> <45DE0607.2090601@drzeus.cx> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <45DE0607.2090601@drzeus.cx> User-Agent: Mutt/1.4.2.2i X-Priority: none Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, On Thu, Feb 22, 2007 at 10:07:19PM +0100, Pierre Ossman wrote: > Arjan van de Ven wrote: > > no; c3 saves a TON more power. > > > > you can try enabling HPET in your BIOS... > > > > > > Hah, I wish! This is a laptop, so the BIOS is as brain dead and broken > as is humanly possible. > > Can I determine if I have the required hardware? So I can tell if I'm > permanently screwed, or just temporarily. http://lkml.org/lkml/2006/11/14/153 and related posts in this older thread ("CONFIG_NO_HZ: missed ticks, stall (keyb IRQ required) [2.6.18-rc4-mm1]") should help. Andreas Mohr