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 >else noticed? 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)? -- Peter Jeremy
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