calcru: runtime went backwards and hard lockup in 5.4-STABLE

[Jason]

> Not really, but the values are making *huge* jumps back and forth, so
> it's not just a matter of missing some interrupts in your case.
> 
> > Is this really a problem? how can I squelch it?
> 
> It does seem to be a problem.  It may be a hardware problem with your
> timekeeping source.  Try changing the timecounter.

ok, so I dont know if it will help, but I disabled ACPI by putting 
hint.acpi.0.disabled="1" in my /boot/device.hints

now I see 
kern.timecounter.choice: TSC(-100) i8254(0) dummy(-1000000)

(in my dmesg at boot, I see 
Timecounter "i8254" frequency 1193182 Hz quality 0)

im pretty sure the first and second items (TSC and one next to it) changed since 
I removed ACPI
and I dont see those messages in my syslog anymore.. so I guess thats a good sign.

Jason