Re: phenom, amd780g, tsc, hpet, kvm, kernel -- who's at fault?

[Ingo Molnar]

* Michael Tokarev <mjt@xxxxxxxxxx> wrote:

> Now, after quite some googling around, I tried to disable hpet, 
> booting with hpet=disable parameter.  And that one fixed all the 
> problems at once. 7 days uptime, I stress-tested it several times, 
> it works with TSC as timesource (still a problem within guests as 
> those shows unstable TSC anyway) since boot, no issues logged.  
> Even cpufreq works as expected...
>
> Note that i tried to disable hpet as clocksource several times but 
> without any noticeable effect - kernel still used hpet and hpet2 
> for something, and printed that scary "increasing min_delay" 
> message on a semi-regular basis usually after the next 'stuck' 
> state....

It could again go bad like it did before - those messages are signs 
of HPET weirdnesses.

Probably your box's hpet needs to be blacklisted, so that it gets 
disabled automatically on bootup.

	Ingo
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