Re: 2.6.32-rc5: unexpected thermal shutdown?

Pavel Machek
2009-11-03T19:17:42Z

On Tue 2009-11-03 20:12:52, Frans Pop wrote:
> On Tuesday 03 November 2009, you wrote:
> > pavel@amd:~$ grep . /proc/acpi/thermal_zone/*/*
> > /proc/acpi/thermal_zone/THM0/cooling_mode:<setting not supported>
> > /proc/acpi/thermal_zone/THM0/polling_frequency:<polling disabled>
> > /proc/acpi/thermal_zone/THM0/state:state: ok
> > /proc/acpi/thermal_zone/THM0/temperature:temperature: 58 C
> > /proc/acpi/thermal_zone/THM0/trip_points:critical (S5): 127 C
>
> Right, so this zone does not have a passive trip point. If it reaches
> critical temp before THM1, it would cause exactly what you saw.
>
> Try recreating the same situation while watching the temp for both thermal
> zones.

Well, I'll try _not_ to recreate this situation :-). If it starts
happening too often, I'll play with passive limits. But... thanks!

> > 128C means "slightly fake" temperature sensor. It seems that it just
> > produces 128 in THM0 when temperature exceeds some other limit.
>
> Hmm. If THM0 does not have *any* other values between 58 and 128 then the
> above will probably not work. If it makes a few jumps, you should
> adjust

It has some values between 58 and 128, but I'm not sure how many.