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Date:      Mon, 24 Sep 2001 14:51:59 -0700
From:      "Drew Tomlinson" <drewt@writeme.com>
To:        "'Beech Rintoul'" <akbeech@anchoragerescue.org>
Cc:        "FreeBSD Questions (E-mail)" <freebsd-questions@FreeBSD.org>
Subject:   RE: Clock question
Message-ID:  <5CD46247635BD511B6B100A0CC3F023925A0C9@ldcmsx01.lc.ca.gov>
In-Reply-To: <5CD46247635BD511B6B100A0CC3F0239014F516D@ldcmsx01.lc.ca.gov>

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> -----Original Message-----
> From: owner-freebsd-questions@FreeBSD.ORG
> [mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of Beech Rintoul
> Sent: Monday, September 24, 2001 2:38 PM
> To: freebsd-questions@freebsd.org
> Subject: Clock question
>
>
> I have an old 486 on our net that works perfectly except for
> the clock.
> ntp resets the time constantly, and this box looks like it
> gains about 2
> minutes an hour. Is there anything I can do to get this under control?
> The box runs as secondary DNS and works great for that purpose.
> BTW it's running 4.4-STABLE.

When I setup ntpd on my old 486 some time ago, someone on the list suggested
adding some options to the kernel and recompiling.  I don't understand what
it does but it worked for me and my clock was way off.  Here's a clip from
the message:

<clip>
Another thing you can try is changing your clock source.  Add the
following lines to your kernel config file and recompile:

options         CLK_USE_I8254_CALIBRATION
options         CLK_USE_TSC_CALIBRATION

That should calibrate two internal clocks against the CMOS clock, which
is usually pretty accurate.
</clip>

Good Luck!

Drew
>
> Beech
>
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