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Sender: Alexander Motin <mavbsd@gmail.com>
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Date: Fri, 29 Oct 2010 16:55:53 +0300
From: Alexander Motin <mav@FreeBSD.org>
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To: Andrey Smagin <samspeed@mail.ru>
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Cc: current <current@freebsd.org>
Subject: Re: Strange hang HPET in current
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Hi.

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?

-- 
Alexander Motin