Date: Fri, 9 May 2008 21:40:03 GMT From: Bruce Cran <bruce@cran.org.uk> To: freebsd-i386@FreeBSD.org Subject: Re: i386/104867: Clock running at 2x speed of wall clock Message-ID: <200805092140.m49Le3Zn097616@freefall.freebsd.org>
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The following reply was made to PR i386/104867; it has been noted by GNATS. From: Bruce Cran <bruce@cran.org.uk> To: bug-followup@FreeBSD.org, Jeff@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
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