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Date:      Sun, 08 Sep 2002 14:44:40 +0200
From:      Daniel Rock <D.Rock@t-online.de>
To:        Craig Rodrigues <rodrigc@attbi.com>
Cc:        freebsd-current@freebsd.org
Subject:   Re: Clock runs too fast
Message-ID:  <3D7B4638.1060007@t-online.de>
References:  <20020907231952.A5525@attbi.com>

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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.


Daniel


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