From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932968Ab2EOSKT (ORCPT ); Tue, 15 May 2012 14:10:19 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:53622 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932750Ab2EOSKQ (ORCPT ); Tue, 15 May 2012 14:10:16 -0400 Date: Tue, 15 May 2012 20:10:04 +0200 From: Pavel Machek To: lenb@kernel.org, linux-acpi@vger.kernel.org, kernel list , ibm-acpi-devel@lists.sourceforge.net, platform-driver-x86@vger.kernel.org Subject: thinkpad x60: critical thermal shutdown does not work (and ethernet overheats) Message-ID: <20120515181004.GA2499@elf.ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi! I have rather old thinkpad x60 here. Long time ago, I noticed that on high continuous ethernet load, it shuts itself down in regular way. I traced it down to overheat, followed by ACPI signaling system to go down. This no longer works in recent kernels. (3.4-rc7 tested, but probably it does not work correctly in 3.2 either). Now machine just hangs when it should start /sbin/poweroff. If I then turn it on, it hangs during ACPI init. I have to let it cool down, then it can boot. Now: a) Any ideas how to solve the overheating problem? Is it hw or sw? Are there workarounds... like should I go to 10mbit? (It overheats even under 2MB/sec continuous load...). Is it common thinkpad fault? b) Why did it stop shutting down correctly? Can you reproduce it by overheating machine artifically? Ideas? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html