Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262586AbUKRFVu (ORCPT ); Thu, 18 Nov 2004 00:21:50 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262569AbUKRFVE (ORCPT ); Thu, 18 Nov 2004 00:21:04 -0500 Received: from mail.suse.de ([195.135.220.2]:60072 "EHLO Cantor.suse.de") by vger.kernel.org with ESMTP id S262570AbUKRFUz (ORCPT ); Thu, 18 Nov 2004 00:20:55 -0500 Date: Thu, 18 Nov 2004 06:06:24 +0100 From: Andi Kleen To: kernel-stuff@comcast.net Cc: linux-kernel@vger.kernel.org, ak@suse.de Subject: Re: X86_64: Many Lost ticks Message-ID: <20041118050624.GB1478@wotan.suse.de> References: <111820040402.18259.419C1EEE000EC75D00004753220075115000009A9B9CD3040A029D0A05@comcast.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <111820040402.18259.419C1EEE000EC75D00004753220075115000009A9B9CD3040A029D0A05@comcast.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 689 Lines: 14 On Thu, Nov 18, 2004 at 04:02:55AM +0000, kernel-stuff@comcast.net wrote: > I have a X86_64 laptop (Compaq Presario R3240) with all BIOS updates in place. I routinely get the "Warning : many lost ticks" message in dmesg. Known problem. ACPI uses a broken way to access the EC register, and VIA chipsets take extremly long for this operation. This happens regularly to read the system temperature. A fix is currently being discussed. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/