From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755294Ab0IOTUJ (ORCPT ); Wed, 15 Sep 2010 15:20:09 -0400 Received: from mail.tpi.com ([70.99.223.143]:3598 "EHLO mail.tpi.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754028Ab0IOTUH (ORCPT ); Wed, 15 Sep 2010 15:20:07 -0400 Message-ID: <4C911C60.4030105@canonical.com> Date: Wed, 15 Sep 2010 13:20:00 -0600 From: Tim Gardner Reply-To: tim.gardner@canonical.com User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.12) Gecko/20100826 Thunderbird/3.0.7 MIME-Version: 1.0 To: jbarnes@virtuousgeek.org CC: "linux-kernel@vger.kernel.org" Subject: Re: MCP limit log messages, 2.6.36-rc4 References: <4C9106C1.4080505@canonical.com> In-Reply-To: <4C9106C1.4080505@canonical.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/15/2010 11:47 AM, Tim Gardner wrote: > I've been getting regular MCP limit log messages on a Dell Studio 1458 > (i5 CPU) with an A02 BIOS. With the attached debug hack it prints the > following values: > > [ 33.605098] intel ips 0000:00:1f.6: MCP limit exceeded: Avg power > 30123, limit 1023 > [ 38.597998] intel ips 0000:00:1f.6: MCP limit exceeded: Avg power > 21697, limit 1023 > [ 43.590917] intel ips 0000:00:1f.6: MCP limit exceeded: Avg power > 15390, limit 1023 > [ 48.583821] intel ips 0000:00:1f.6: MCP limit exceeded: Avg power > 43370, limit 1023 > [ 53.576740] intel ips 0000:00:1f.6: MCP limit exceeded: Avg power > 64728, limit 1023 > > This is an idle machine which starts printing these messages about 30 > seconds after boot. Any thoughts? > > rtg More clues: [ 13.426064] intel ips 0000:00:1f.6: Warning: CPU TDP doesn't match expected value (found 25, expected 35) [ 13.426086] intel ips 0000:00:1f.6: PCI INT C -> GSI 18 (level, low) -> IRQ 18 [ 13.426933] intel ips 0000:00:1f.6: IPS driver initialized, MCP temp limit 95 -- Tim Gardner tim.gardner@canonical.com