Quoting Juraj Trenkler <[EMAIL PROTECTED]>:
> Sometimes my Notebook HP nx6110 with OpenSuse10.2 decides to shut down. Last 
> time I found for example this system message:
> 
> Apr 25 17:19:38 duro kernel: ACPI: Critical trip point
> Apr 25 17:19:38 duro kernel: Critical temperature reached (178 C), shutting 
> down.
> Apr 25 17:19:38 duro shutdown[7434]: shutting down for system halt
> Apr 25 17:19:38 duro init: Switching to runlevel: 0
> 
> Computer was cool because it was turned on for abou one minute. No 178 C. It 
> happens sometimes and I do not like this behauviour.
> 

I saw something similar (don't remember the exact temperature, but improbably
high) on a system.  Postmortem suggests that the BIOS PROM failed and the
temperature value went to all 1s.  I would guess that something connected with
the temperature sensor is failing intermittently.  Short term is to turn off
the shutdown on temperature alert behavior of ACPI and/or the kernel.  Long
term, get the sensor fixed/replaced.

HTH,
  Jeffrey
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