System clock is slow
peter at rulingia.com
Tue Mar 10 05:39:01 UTC 2020
On 2020-Mar-09 19:59:09 -0400, Theron <theron.tarigo at gmail.com> wrote:
>Since switching from 12.1-RELEASE to CURRENT I've noticed timing
>problems with audio applications. It turns out that the problem is not
>with the audio drivers, but with the system clock driver, which now
>reports passage of time 0.3% too slow. Although I discovered this only
>recently, it's been broken since r352684 made on Sept. 25. Has anyone
Note that r352684 was MFC'd to both 11-stable (r353007) and 12-stable
(r353006) in early October and I don't recall seeing any adverse
reports before this.
Are you running NTP? If so, is NTP maintaining lock and what is the
reported PLL frequency (ntpq -c kerni)?
What does "sysctl kern.timecounter" report and have you tried using
any of the alternative timecounters listed in kern.timecounter.choice?
Are you overclocking your CPU (or doing anything else non-standard)?
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