What model and version of BIOS is your system using? I had a similar problem which was caused by USB plug & play. Disabling the USB option in the bios settings prevented the system clock to run faster than the RTC.
The system I was running used a Phoenix BIOS. hope this is of help ------------- David -----Original Message----- From: Stephen D. Cohen [mailto:[EMAIL PROTECTED]] Sent: Friday, February 08, 2002 4:25 PM To: '[EMAIL PROTECTED]'; [EMAIL PROTECTED] Cc: '[EMAIL PROTECTED]' Subject: RE: [rtl] clock problem - Here Too - Any Solution? Dear List, Some time back, S. Ancelot wrote: > When our realtime application runs, the system clock goes faster than > the real timeclock . (+1 or 2hours after 24h) We are experiencing exactly the same problem you described below. Has anyone figured out what is causing it and, more importantly, how to make it stop? Note: The speed of the time gain appears to vary with the speed of the loops in our various threads (though not necessarily linearly). We have a need for reasonably precise time synchronization in our system and want Linux to use NTP to keep things in synch with another system to within a few milliseconds. Unfortunately, with this clock problem, NTP is hopeless. Any help greatly appreciated. Regards, Steve -------------------------- Stephen D. Cohen Engineering Manager Xybion Sensor Positioning Systems 11528 53rd Street North Clearwater, FL 33760 Voice: (727) 299-0150 Fax: (727) 299-0804 [EMAIL PROTECTED] www.xybion.com ************************************************************************ THIS EMAIL, AND ANY ATTACHMENTS, CONTAINS CONFIDENTIAL AND PRIVILEGED INFORMATION INTENDED FOR THE USE OF THE ADDRESSEE. IF YOU ARE NOT THE INTENDED RECIPIENT OR AN AUTHORIZED REPRESENTATIVE OF THE RECIPIENT, DO NOT READ OR DISTRIBUTE THE CONTENTS OF THIS EMAIL AND DELETE IT FROM YOUR SYSTEM. THIS EMAIL AND ALL ATTACHMENTS HAVE BEEN SCANNED FOR VIRUSES AND ARE BELIEVED TO BE VIRUS FREE. HOWEVER, IT IS THE RECIPIENT'S RESPONSIBILITY TO ENSURE THAT THEY ARE VIRUS FREE. XYBION DOES NOT ACCEPT ANY RESPONSIBILITY FOR ANY LOSS OR DAMAGE ARISING IN ANY WAY FROM USE OF THIS EMAIL AND ATTACHMENTS. XYBION ALSO DOES NOT ACCEPT RESPONSIBILITY FOR PERSONAL EMAIL OR EMAIL NOT ASSOCIATED WITH ITS BUSINESS PURPOSES. ************************************************************************ -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED] -- For more information on Real-Time Linux see: http://www.rtlinux.org/ ------------------------------------------------------------------------ This email and any attachments are confidential and are for the use of the addressee only. If you are not the addressee, you must not use or disclose the contents to any other person. Please immediately notify the sender and delete the email. Statements and opinions expressed here may not represent those of the company. Email correspondence is monitored by the company. The parent company of the Renishaw Group is Renishaw plc, registered in England no. 1106260. Registered Office: New Mills, Wotton-under-Edge Gloucestershire, GL12 8JR, United Kingdom. Tel +44 (0) 1453 524524 ----------------------------------------------------------------------- -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED] -- For more information on Real-Time Linux see: http://www.rtlinux.org/