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Subject: Re: microuptime() went backwards
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From: Lowell Gilbert <freebsd-stable-local@be-well.no-ip.com>
Date: 28 Aug 2002 13:32:15 -0400
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"aSe" <aSe@SysFail.com> writes:

> (from dmesg of corse..)
> Aug 17 14:14:26 Fail /kernel: FreeBSD 4.6-RELEASE #0: Tue Jun 11 06:14:12
> GMT 2002
> Aug 17 14:14:26 Fail /kernel: Timecounter "i8254"  frequency 1193182 Hz
> Aug 17 14:14:26 Fail /kernel: CPU: AMD-K6(tm) 3D processor (451.03-MHz
> 586-class CPU)
> Aug 17 14:14:26 Fail /kernel: Origin = "AuthenticAMD"  Id = 0x58c  Stepping
> = 12
> 
> kern.timecounter.method=1 has been set and i checked twice APM isn't enabled
> in the bios or compiled into the kernel.
> 
> does anyone have any more ideas how to solve/cut down on the problem?

Check whether it happens with a GENERIC kernel.

Check your devices to see if something is generating a lot of
interrupts (a printer port, perhaps?).  Check your timecounter (the
kern.timecounter.hardware sysctl), and try toggling it (between TSC
and i8254).

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