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Re: kern/53016: Clock not stable

The following reply was made to PR kern/53016; it has been noted by GNATS.

From: Thomas Klausner <>
To: NetBSD bugtracking <>
Subject: Re: kern/53016: Clock not stable
Date: Thu, 17 May 2018 08:16:02 +0200

 On Thu, May 17, 2018 at 01:30:01AM +0000, Mouse wrote:
 >  Quite possibly not relevant, but I have a machine that, under NetBSD as
 >  old as 5.2, keeps _really_ bad time if I leave it set on the default
 >  clock source.  (Really bad, as in, the difference between time
 >  intervals measured by the machine and time intervals measured by
 >  wallclock time is a factor of at least 2 and I think it was more like
 >  10.)  I have to change kern.timecounter.hardware to get decent clock
 >  behaviour (I set it to hpet0 each boot, and the clock then keeps
 >  perfectly acceptable time then; ntp.drift contains "3.605").
 I have
 in my /etc/sysctl.conf since 2009 (5.99.x) for similar reasons.

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