From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261731AbUBDNgt (ORCPT ); Wed, 4 Feb 2004 08:36:49 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261812AbUBDNgt (ORCPT ); Wed, 4 Feb 2004 08:36:49 -0500 Received: from m99-mp1.n01.edn.dial.ntli.net ([217.137.131.99]:57730 "EHLO tanagra.demon.co.uk") by vger.kernel.org with ESMTP id S261731AbUBDNgq (ORCPT ); Wed, 4 Feb 2004 08:36:46 -0500 Subject: TSC and real-time clock slippage with 2.6.2 From: Ian Chard To: linux-kernel@vger.kernel.org Content-Type: text/plain Organization: Message-Id: <1075901679.5608.13.camel@tanagra> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 (1.2.2-4) Date: 04 Feb 2004 13:34:39 +0000 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, Ever since I upgraded from 2.4.20 to the 2.6 tree, I've had a problem with real-time clock slippage and hard hangs on my Athlon XP 2500+ (1830MHz according to /proc/cpuinfo). I've kept an eye on the list and have applied new patches as the problem seems to be known about, but as the problem's still there with 2.6.2 I thought it was about time I reared my ugly head. At or shortly after boot time, I get the "Losing too many ticks!" message (this seems to be related to how hard the system is working -- if it runs an fsck, the message appears immediately). Then, while the system is running, the real-time clock will lose time: the more jobs use the CPU, the more time I lose. Occasionally, the system will oops or hard-hang altogether (which could be an unrelated driver issue; it is pretty unusual). I'm willing to test any patches you clever folk want to throw at me, or alternatively if there's an easy solution I'll try anything. Please cc: me on any replies, as my phone line is made of wet string and would never cope with being subscribed! Thanks for any help - Ian -- Ian Chard "Resting" Unix sysadmin and RHCE near Linlithgow, central Scotland | sedimentation fault - beach dumped