Re: kern/53016: Clock not stable

[Joerg Sonnenberger <joerg%bec.de@localhost>]

On Wed, Apr 04, 2018 at 05:50:01AM +0000, Michael van Elst wrote:
>  He already mentioned the deviations for all clock sources. 'lapic' and
>  also 'clockinterrupt' were bad. The rest looked like an average PC that
>  is not kept in sync by ntpd.

...this makes me suspect that the system goes into deep sleep states
occassionally, where the lapic is stopped. That would also explain time
keeping problems of ntpd, since the ntp frequency adjustments are done
in the time interrupt, not by fudging the time counter frequencies.

Joerg