Re: 2.6.22 regression: thermal trip points

From: Pavel Machek
Date: Thu Aug 02 2007 - 11:56:15 EST


Hi!

> > I didn't understand the arguments either, actually.
>
> The issue is that you can actually kill hardware by setting this wrong.
> We've had such cases where trip point problems eventually lead
> to overheated laptops with hard disks dying etc.

Actually, that was my machine. Omnibook xe3; BIOS provided trip points
*did* kill the disk. At least I was able to work around it with
writing to trip points.

Yes, ACPI mandates emergency shutdown when critical+delta point is
reached, *in hardware*. So this only endangers very broken machines,
and it also fixes lot of them.

Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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