Strange hang HPET in current
mav at FreeBSD.org
Fri Oct 29 13:55:58 UTC 2010
Andrey Smagin wrote:
> In my box (amd64, current 20.oct.10 )
> some time hang by 5-10 minutes with random subsystem, may
> hang disk access,network,very often tty. In most no output in log,
> sometimes with messages "calcru: .....". After 5-10 minutes it
> continue work again. When I disabled HPET in bios - problem gone.
Could you give some more info? Is it physical machine? Is it SMP? What
chipset do you have? Does HPET works in per-CPU or global mode? Does
`vmstat -i` shows HPET interrupts during that time?
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