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From: "Charles Howse" <chowse@charter.net>
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Date: Wed, 24 Sep 2003 08:12:20 -0500
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Subject: RE: Kern.timecounter.hardware issues
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> Hi,
> The following appeared in my daily security run output:
>=20
> curly.howse.no-ip.org kernel log messages:
> > Timecounter "TSC"  frequency 300683473 Hz
>=20
> I have a Celeron 300 CPU, if that matters.
>=20
> A quick Google for 'Timecounter "TSC"  frequency' led me to=20
> believe that I should change the hardware timecounter to i8254 with:
>=20
> sysctl -w kern.timecounter.hardware=3Di8254
>=20
> I did that, rebooted, and ran sysctl -a again, only to see=20
> that kern.timecounter.hardware had reverted to TSC.
>=20
> I have both i8254 and TSC showing in dmesg.
>=20
> Should I make the change permanent across reboots, and if so, how?
>=20
> BTW, are any of you getting the same messages from this list=20
> over and over again?
> I am, I wonder what's going on?

After re-reading man sysctl, I see I should be able to set any values I
need in /etc/sysctl.conf
I added kern.timecounter.hardware=3Di8254, saved, rebooted, no joy, =
still
set to TSC.
The handbook doesn't have anything specific.
What's going on?