Messages in this thread |  | | | Date | Tue, 3 Nov 2009 19:37:39 +0100 | | From | Pavel Machek <> | | Subject | Re: 2.6.32-rc5: unexpected thermal shutdown? |
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On Tue 2009-11-03 18:25:03, Frans Pop wrote: > Pavel Machek wrote: > > I found this in the syslog afterwards. > > > > Nov 3 09:59:14 amd kernel: Critical temperature reached (128 C), > > shutting down. > > Nov 3 09:59:14 amd shutdown[17819]: shutting down for system halt > > Nov 3 09:59:15 amd init: Switching to runlevel: 0 > > Looks like what happened to me earlier this year. See > http://bugzilla.kernel.org/show_bug.cgi?id=13918.
Will take a look.
> > Now, machine was lying on the bed at that point, so... > > So probably both the fan intake and hot air outlet were blocked, > effectively preventing cooling.
Well, no. outlet was not blocked; parts of intake maybe.
> What hardware is this?
Thinkpad x60.
> What's the output of 'grep . /proc/acpi/thermal_zone/TZ*/*'? > Any thermal zones in there that don't have a "passive" trip point?
128C means "slightly fake" temperature sensor. It seems that it just produces 128 in THM0 when temperature exceeds some other limit.
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 /proc/acpi/thermal_zone/THM1/cooling_mode:<setting not supported> /proc/acpi/thermal_zone/THM1/polling_frequency:<polling disabled> /proc/acpi/thermal_zone/THM1/state:state: ok /proc/acpi/thermal_zone/THM1/temperature:temperature: 59 C /proc/acpi/thermal_zone/THM1/trip_points:critical (S5): 97 C /proc/acpi/thermal_zone/THM1/trip_points:passive: 93 C: tc1=5 tc2=4 tsp=600 devices=CPU0 CPU1 pavel@amd:~$ Pavel
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