critical temperature reached

[Basil Chupin]

On 21/01/13 16:52, Thufir Hawat wrote:
> from /var/log/syslog:
>
> Jan 20 21:05:08 dur kernel: [ 3372.987672] thermal_sys: Critical
> temperature reached (63 C), shutting down
>
>
> Can I get thermal_sys, and presumably it's either this or something
> similar:
>
> http://lxr.free-electrons.com/source/drivers/thermal/thermal_sys.c
>
> Can I get thermal_sys to report anything pegging the cpu beforehand it
> reaches critical (is there a category before critical?) and limit that
> process to prevent this?
>
> Or, can I watch thermal_sys somehow?
>
> I was thinking of something like top, except just reporting the single
> top process and if the cpu temp is nearing critical and that process
> stays at the top, then that's the one to throttle down.  Something like
> that?
>
> Although I've seen another approach of limiting any one process from
> taking up more that a certain amount of the cpu:
>
> http://ubuntuforums.org/showthread.php?t=992706

I don't now a thing about thermal_sys but don't you have settings in 
your BIOS where you set alarms when temps reach a certain level?

I accidentally set one such parameter to sound an alarm when one of the 
fans stops working. All I got was a constant alarm from the mobo and I 
didn't know what the hell was going on :-) - until I altered that 
setting (because there was no fan connected to those pins on the mobo to 
begin with).

One other - very important point! - make sure that your fans in your 
case are working properly and that they are not deprived of fresh air.

I have a case which has an air filter at the front (for the 2 120mm 
fans), and fans have temp control sensors (the fans are Arctic Cooking 
F-series).

At the moment we now are having some pretty hot temperatures and, even 
though our house is air-conditioned, suddenly everytime I would start 
some application I would hear a "whooshing" sound from the case. This 
puzzled me for a while - until I realised that I had not cleaned the 
crap inside the computer for 6 months. Opened up the case and, sure 
enough, the air filter was blocked with gung. Cleaned the filter, 
cleaned all the fan blades, etc, and the "whooshing" stopped :-) .

BC

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