From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 6 Mar 2002 18:35:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 6 Mar 2002 18:35:46 -0500 Received: from c007-h013.c007.snv.cp.net ([209.228.33.220]:47835 "HELO c007.snv.cp.net") by vger.kernel.org with SMTP id ; Wed, 6 Mar 2002 18:35:32 -0500 X-Sent: 6 Mar 2002 23:35:26 GMT Message-ID: <3C86A7B6.2BF312FD@bigfoot.com> Date: Wed, 06 Mar 2002 15:35:18 -0800 From: Tim Moore Organization: Yoyodyne Propulsion Systems, Inc. X-Mailer: Mozilla 4.78 [en] (X11; U; Linux 2.2.21pre2-Ole i686) X-Accept-Language: en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: Re: laptop losing 4 seconds every 17 minutes [SOLVED] In-Reply-To: <3C2E65F3.D54E8048@bigfoot.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Tim Moore wrote: > > Toshiba 320CT, 2.2.20. I noticed a 'synchronization lost' pattern in > xntpd logs. > > Ran a test loop with 'ntpdate -q' to my LAN time server at 1 second > intervals and discovered the laptop is losing precisely 4 seconds (jump) > every 17 minutes. > > There are no unusual cron jobs, nor does any obvious process trigger as > far as top output shows. There is an Abit KA7 using the same kernel, > ntp server and client setup, and on the same LAN with no issues. Every 1020 seconds the system would freeze, including RTC, for 4 seconds. In this case '1020+4' had no tangible meaning. The problem was a bad NiMH RTC battery. rgds, tim. --