6.0 on VMWare 5.0: `calcru: negative runtime of -12728437 usec for pid 28 (irq17: lnc0)'

[Nate Lawson]

Lev Serebryakov wrote:
> Hello freebsd-stable,
> 
>   FreeBSD 6.0 on VMWare 5.0 prints such messages every 3-4 minute.
>   Also, messages like
> 
> calcru: runtime went backwards from 40644816 to 40005944 usec for pid 3 (g_up)
> 
>   is shown routinely.
> 
>   timecounter is ACPI-safe, kernel is GENERIC one.
> 
>   5.4-STABLE on some virtual machine runs without such messages.
> 
>   And, hey, numbers are TOOOOOO big to be true, aren't they?

Try using TSC or i8254:
sysctl kern.MUMBLE.timecounter=TSC

(developers@ removed from cc:)

-- 
Nate