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SubjectRe: 2.6.21-rc7: HPET enabled freeze my machine at boot
John,

The dynticks doesn't affect HPET here at all. The machine freeze with or
w/o dynticks.

Gonna try the patch and i tell you.

Guilherme M. Schroeder
Network Administrator
Central de Vendas Informatica LTDA
Tel.: (11) 3665-2000 Ramal: 2008
http://www.centralinf.com.br


john stultz wrote:
> On Sat, 2007-04-21 at 20:07 -0300, Guilherme M. Schroeder wrote:
>> john stultz wrote:
>>> On 4/19/07, guilherme <guilherme@centralinf.com.br> wrote:
>>>> Hi,
>>>>
>>>> If i enable "High Resolution Timer Support", my machine stops here at
>>>> boot:
>>>>
>>>> Clocksource tsc unstable (delta = -297340790165 ns)
>>>> Time: hpet clocksource has been installed.
>>>>
>>>> If i disable HPET, it boots fine.
>>> Hmmm.. What happens if you boot w/ clocksource=acpi_pm ?
>>>
>>>
>> Boot ok with clocksource=acpi_pm and HPET enabled.
>> Any clue?
>
>
> I'm suspecting that your HPET counter is being stopped for some reason,
> although why I have no idea.
>
> Just to get a clear picture, does this happen w/ "Tickless System
> (Dynamic ticks)" disabled in the menuconfig?
>
> Thomas, might we be actually stopping the HPET counter instead of
> disabling the HPET interrupt w/ dynticks?
>
> thanks
> -john
>
>
>
>
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