Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758033AbXHBP4O (ORCPT ); Thu, 2 Aug 2007 11:56:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755902AbXHBPz6 (ORCPT ); Thu, 2 Aug 2007 11:55:58 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:1346 "EHLO spitz.ucw.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755481AbXHBPz6 (ORCPT ); Thu, 2 Aug 2007 11:55:58 -0400 Date: Thu, 2 Aug 2007 15:55:45 +0000 From: Pavel Machek To: Andi Kleen Cc: Andrew Morton , Knut Petersen , linux-kernel@vger.kernel.org, trenn@suse.de, mjg59@srcf.ucam.org, lenb@kernel.org Subject: Re: 2.6.22 regression: thermal trip points Message-ID: <20070802155545.GA3974@ucw.cz> References: <46B1988C.3090302@t-online.de> <20070802015248.45a40717.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 977 Lines: 25 Hi! > > I didn't understand the arguments either, actually. > > The issue is that you can actually kill hardware by setting this wrong. > We've had such cases where trip point problems eventually lead > to overheated laptops with hard disks dying etc. Actually, that was my machine. Omnibook xe3; BIOS provided trip points *did* kill the disk. At least I was able to work around it with writing to trip points. Yes, ACPI mandates emergency shutdown when critical+delta point is reached, *in hardware*. So this only endangers very broken machines, and it also fixes lot of them. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/