Oh no, sorry, that was too early.
Double-checked once again, no, this problem still exists if Guest OS
Version is set to "FreeBSD Pre-11 versions (32-bit)".
If I set Guest OS Version to "FreeBSD 11 (32-bit)", the problem
disappears.

On 09/08, Pavel Korovin wrote:
> Hi Scott,
> 
> Thank you for the fix!
> 
> I found what triggered this behaviour: it was the change in Guest OS
> Version in VM Options.
> 
> I deploy VMs with sysutils/packer, some time ago I noticed that VM type in
> my templates is specified as freebsd11_64Guest, which isn't consistent with
> vmt(4), as it presents itself as "FreeBSD Pre-11 versions (32-bit)".
> 
> After changing OS type to "FreeBSD Pre-11 versions (32-bit)", I've got this
> problem with tsc.
> 
> The provided diff fixes it:
> 
> $ sysctl -a | grep tsc
> kern.timecounter.hardware=tsc
> kern.timecounter.choice=i8254(0) acpihpet0(1000) tsc(2000)
> acpitimer0(1000)
> machdep.tscfreq=1500008129
> machdep.invarianttsc=1

-- 
With best regards,
Pavel Korovin

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