Date: Tue, 18 Mar 2003 10:22:07 -0800 From: "Kevin Oberman" <oberman@es.net> To: Craig Rodrigues <rodrigc@attbi.com> Cc: David Malone <dwmalone@maths.tcd.ie>, sjh@zorak.net, freebsd-current@FreeBSD.ORG Subject: Re: Clock running double time Message-ID: <20030318182207.C8DF95D07@ptavv.es.net> In-Reply-To: Your message of "Sat, 15 Mar 2003 11:56:42 EST." <20030315165642.GA2946@attbi.com>
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> Date: Sat, 15 Mar 2003 11:56:42 -0500 > From: Craig Rodrigues <rodrigc@attbi.com> > Sender: owner-freebsd-current@FreeBSD.ORG > > On Sat, Mar 15, 2003 at 03:51:09PM +0000, David Malone wrote: > > On Fri, Mar 14, 2003 at 11:14:51PM -0800, sjh@zorak.net wrote: > > > Has anyone ever seen this? My clock is running double time, that is, > > > each second it advances two seconds. Needless to say, ntpd can't sync > > > up with any servers. > > > > You almost certainly have a motherboard with bad ACPI (probably > > for with a K6 processor). Try adding: > > > > kern.timecounter.hardware: TSC > > The correct line to add to /etc/sysctl.conf is: > > kern.timecounter.hardware=TSC Can someone explain why TSC is preferred to i8254 (or why not)? R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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