i386/104867: Clock running at 2x speed of wall clock

[Bruce Cran]

The following reply was made to PR i386/104867; it has been noted by GNATS.

From: Bruce Cran <bruce at cran.org.uk>
To: bug-followup at FreeBSD.org, Jeff at PointHere.net
Cc:  
Subject: Re: i386/104867: Clock running at 2x speed of wall clock
Date: Fri, 09 May 2008 22:31:29 +0100

 Could you check which timecounter is being used, with the 
 kern.timecounter.hardware sysctl?  The ACPI-safe source is known to run 
 far too fast on many systems, and it's better to use i8254 instead: try 
 putting the following in /etc/sysctl.conf and rebooting
 
 kern.timecounter.hardware=i8254
 
 If the clock is still running slightly fast (e.g. 1s per minute) then 
 you can configure ntpd to track and correct the drift. There's a guide 
 to setting it up in the handbook at 
 http://www.freebsd.org/doc/en/books/handbook/network-ntp.html
 
 -- 
 Bruce Cran