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SubjectRe: [RFC/SERIOUS] grilling troubled CPUs for fun and profit?
Hi!

> >If it happens to you... you needed a new cpu anyway. Anything non-historical
> >*has* thermal protection.
> >
> >BTW I doubt those old athlons can be saved by cli; hlt . (Someone willing
> >to try if old
> >athlon can run cli; hlt code w/o heatsink?).
>
> K6 run cooler even with the regular kernel HLT (sti/hlt I presume).
> Difference to full load can be up to 10 deg, depending on ambient (room)
> temperature. In winter (read 2005-12-31) it ran between 28 celsius and 34
> celsius. The fan even stopped and I thought it was a fan failure, but
> luckily it was just hw-controlled :)

Okay, so you've got a point. The patch is useful on k6 in the winter
:-). (Actually, to show you've got a point, you'd have to stop the fan
and show that cpu badly overheats under for(;;) conditions).

Yes, we probably want to consolidate various for(;;) loops... and
maybe it will helpsomeone. If overheating causes reboot instead of
panic, you probably still loose, as BIOS is close to for(;;)...

Pavel

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