From: "Trevor Hemsley" <trevor.hemsley@ntlworld.com>
To: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Date: Fri, 02 Oct 2009 14:42:20 +0100 (BST)
Reply-To: "Trevor Hemsley" <trevor.hemsley@ntlworld.com>
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Subject: Temperature above threshold loop with 2.6.31.1
Message-Id: <20091002134430.SOPU22934.aamtaout04-winn.ispmail.ntl.com@trevor2.dsl.pipex.com>
Sender: linux-kernel-owner@vger.kernel.org
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Hi

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)

This is on an Intel D975XBX2 motherboard with an Intel Xeon X3220
2.4GHz quad core chip installed (the Xeon equivalent of a Q6600). The
BIOS reports the cpu temperature as being consistently 51C which may be
a bit on the high side but not dangerously so.

And, yes, I'm aware that this might be a valid temperature warning and
I aim to dismantle the machaine and check everything out over the
weekend but...

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 :-)

Please cc me on any replies as I'm not subscribed to the list. Thanks.


-- 
Trevor Hemsley, Brighton, UK
Trevor dot Hemsley at ntlworld dot com

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