linux-kernel - Re: 2.6.21-rc5: Thinkpad X60 gets critical thermal shutdowns

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Message-ID: <20070401163031.GA5762@ucw.cz>
Date:	Sun, 1 Apr 2007 16:30:31 +0000
From:	Pavel Machek <pavel@....cz>
To:	Andi Kleen <ak@...e.de>
Cc:	Jeremy Fitzhardinge <jeremy@...p.org>,
	"Brown, Len" <len.brown@...el.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-acpi@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: 2.6.21-rc5: Thinkpad X60 gets critical thermal shutdowns

Hi!

> > When I run 2.6.21-rc5 + Andi's x86 patches + paravirt_ops patches, I've
> > been getting my machine shut down with critical thermal shutdown messages:
> 
> Hmm, don't think there's anything either in x86 that would touch this code.
> But can you double check with plain rc5? 
> 
> > Mar 30 23:19:03 localhost kernel: ACPI: Critical trip point
> > Mar 30 23:19:03 localhost kernel: Critical temperature reached (128 C), shutting down.
> > Mar 30 23:19:03 localhost kernel: Critical temperature reached (128 C), shutting down.
> > Mar 30 23:19:03 localhost shutdown[19417]: shutting down for system halt
> > 
> > and the machine does feel pretty hot.
> 
> Pavel has been complaining about higher power consumption on his laptop versus
> .20 too.

Yep, sometimes it takes 30W instead of 12W... Anyway, this seems to
be measurement error. Notice how acpi claims 128C. I do not think cpu
can work at 128C and hardware should kill us before cpu is that hot.

Are you running lm_sensors?

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