linux-kernel - Re: Temperature above threshold loop with 2.6.31.1

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Message-Id: <200910021703.31679.elendil@planet.nl>
Date:	Fri, 2 Oct 2009 17:03:30 +0200
From:	Frans Pop <elendil@...net.nl>
To:	Trevor Hemsley <trevor.hemsley@...world.com>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>
Subject: Re: Temperature above threshold loop with 2.6.31.1

Trevor Hemsley wrote:
> I just downloaded and installed the latest 2.6.31.1 kernel on my
> machine here and I think I found a small bug. Shortly after boot I
> start to receive messages like
> 
> CPU0: Temperature above threshold, cpu clock throttled (total events =
> 21672)
[...] 
> More importantly, I get approximately 100,000 of these messages per
> minute and the machine is completely unusable. All of these are for
> CPU0 - at least all the ones that get written to /var/log/messages.
> 
> 1,666 notifications a second seems a little on the 'too frequent' side
> of things to me :-)

Looks like this may already be fixed in mainline by the following commit:
commit b417c9fd8690637f0c91479435ab3e2bf450c038
Author: Ingo Molnar <mingo@...e.hu>
Date:   Tue Sep 22 15:50:24 2009 +0200
    x86: mce: Fix thermal throttling message storm

Can you confirm that please, either by compiling current git or by applying 
that commit on top of 2.6.31.1?

Ingo: is that patch already scheduled for stable?

Cheers,
FJP
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