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Summary: ACPI: Critical temperature reached (65 C), shutting down.


https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=155496


[EMAIL PROTECTED] changed:

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------- Additional Comments From [EMAIL PROTECTED]  2007-07-20 05:12 EST -------
> mystery #1: 65C != BIOS SETUP ACPI critical shutdown temperature.
> 
> Can you actually change this field in the BIOS SETUP?

Yes, I can choose from "disabled, 70 C, 80 C and 90 C".

> If yes, do the changes there have any effect at all
> on what you see in the trip_points file?

Seems so.
90 C maps to 65 C critical, 55 C passive
80 C maps to 60 C critical, 50 C passive

Looks like factor /2 is involved somewhere.

> BTW. Does this system have a fan?

CPU fan and power fan.

> please paste the output from these commands:
> # outb 0xF0 0x72
> inb 0x73

Where do I get the commands? I've done it in C as a work-around:

# ~misc/files/source/inb_outb 
55
55
65

> If you repeat this, you should get the same answers.

Yes.

> It would be good to verify also that you get the same
> answers with "acpi=off".

I do.

> BTW. booting with "acpi=off" should work-around the symptom of this bug.

Been doing that with Rawhide since it came into my mind, too.


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