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Date:      Fri, 13 Sep 2002 16:49:33 -0400
From:      Bob Wright <bwrig@zdgt.com>
To:        Daniel Rock <D.Rock@t-online.de>, 'Kyle Butt' <kylebutt@myrealbox.com>
Cc:        freebsd-questions@freebsd.org
Subject:   RE: Clock runs too fast
Message-ID:  <F28DF05657ADD211B6140008C73354C152EAFF@ZELTD1>

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Setup a cron job to perform this operation for you, connecting to your fav
NTP server... Simple yet it works :)


> ----------
> From: 	Kyle Butt
> Sent: 	Friday, September 13, 2002 10:40 AM
> To: 	Daniel Rock
> Cc: 	freebsd-questions@freebsd.org
> Subject: 	Re: Clock runs too fast
> 
> On Sun, Sep 08, 2002 at 02:44:40PM +0200, Daniel Rock wrote:
> > Craig Rodrigues schrieb:
> > 
> > >Hi,
> > >
> > >I have been having this problem with -current for the past 2 weeks now
> > >(I am new to -current and just started using it 2 weeks ago).
> > >I just did a cvsup and rebuilt the kernel and rebuilt the world.
> > >
> > >My clock seems to be running too fast, and I keep resetting it
> > >with ntpdate.
> > >
> > >[...]
> > >
> > >Now the clock seems to run at a more reasonable rate.
> > >
> > >Is there a problem with the ACPI code or with my
> > >hardware (an ASUS P5A-B motherboard from about 3 or 4 years ago). 
> > >
> > >How can I default to i8254 as my default timer?  Is there
> > >something I should put in device.hints?
> > >
> > I had similar problems with a Gigabyte GA-5AX (also with ALi Aladdin V 
> > chipset). Without setting
> > debug.acpi.disable = "timer"
> > the clock runs twice as fast as it should be. This problem seems to be 
> > introduced in the ACPI update around July 2001. I didn't find any 
> > solution other than disabling ACPI timecounter.
> 
> That setting disappeared a while ago. I found another solution to the
> twice as fast problem.
> 
> I doubled machdep.acpi_timer_freq in /etc/sysctl.conf
> I started by halving that, but that made my clock go 4x. Yikes. So I
> doubled
> it. If anyone knows how to set this at boot, please tell me.
> 
> machdep.acpi_timer_freq=7159090
> 
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