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Re: kern/56322: Excessive clock drift
The following reply was made to PR kern/56322; it has been noted by GNATS.
From: David Holland <dholland-bugs%netbsd.org@localhost>
Cc: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
Subject: Re: kern/56322: Excessive clock drift
Date: Thu, 22 Jul 2021 06:55:47 +0000
On Thu, Jul 22, 2021 at 05:50:01AM +0000, Frank Kardel wrote:
> Can you post
> sysctl kern.timecounter
> I assume the with the
> ERROR: 2607 cycle TSC drift observed
> TSC was not picked as timecounter on your system.
It was not then (afaik) but it was now. So,
> Can you try
> sysctl -w kern.timecounter.hardware=i8254
> and see whether that improves the situation.
As of ~now when I did that it had dropped to two full minutes behind,
in something like seven hours, so tomorrow morning should indicate
whether the situation's better.
David A. Holland
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