Date: Mon, 30 Oct 2006 12:43:38 -0800 (PST) From: Bill-Schoolcraft <bill@wiliweld.com> To: Thierry Lacoste <th.lacoste@wanadoo.fr> Cc: freebsd-questions@freebsd.org Subject: Re: clock running too fast Message-ID: <Pine.LNX.4.61.0610301227460.28579@liam.billschoolcraft.com> In-Reply-To: <200610301959.38092.th.lacoste@wanadoo.fr> References: <200610291354.58097.th.lacoste@wanadoo.fr> <4544BEB6.80606@mac.com> <200610301959.38092.th.lacoste@wanadoo.fr>
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At Mon, 30 Oct 2006 it looks like Thierry Lacoste composed: > Thank you. > > I tried TSC, ACPI-fast and i8254 but I still have the same problem. > I have a 64-bit box that for some reason started running "fast"... real fast and for the sake of simplicity, just have a cronjob run ntpdate to various timeservers till I get this figured out. I imagined something wrong with the motherboard so the cronjob entries looked very appealing :) > On Sunday 29 October 2006 15:46, Chuck Swiger wrote: > > Thierry Lacoste wrote: > > > On one of my servers running 6.1-RELEASE-p10 I cannot keep the clok > > > synchronized using ntpd. AFAICS this is certainly because the clock > > > is running way too fast (about one second per minute). > > > > > > After I run ntpdate then ntpd the clock is drifting and /var/db/ntp.drift > > > contains 0.00. > > > > > > Is there a way to slow down the system clock (something like tickadj > > > under some linux distributions) ? > > > > Take a look at "sysctl kern.timecounter", and choose another clock from the > > list of choices (by setting kern.timecounter.hardware to something else in > > the list of choices). > > > > If you are using TSC now, especially on a dual-CPU system, try using > > ACPI-safe or i8254 instead. If you are using the ACPI timecounter, try > > looking for a BIOS update for your hardware; perhaps that might fix the > > bogus clock. > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" > -- Bill Schoolcraft <*> System Engineer ~ "The loser isn't the one who finished last; it is the one who never entered the race."
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