Strange hang HPET in current
Alexander Motin
mav at FreeBSD.org
Fri Oct 29 14:04:31 UTC 2010
Alexander Motin wrote:
> 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?
PS: You may try to remove from acpi_hpet.c near line 192 condition
if (fdiv < 5000) {
and respective "}". Report me if it help.
--
Alexander Motin
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