From owner-freebsd-current@FreeBSD.ORG Wed Mar 3 19:44:04 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4A92B16A4CE for ; Wed, 3 Mar 2004 19:44:04 -0800 (PST) Received: from www.ambrisko.com (adsl-64-174-51-42.dsl.snfc21.pacbell.net [64.174.51.42]) by mx1.FreeBSD.org (Postfix) with ESMTP id 18D3143D31 for ; Wed, 3 Mar 2004 19:44:04 -0800 (PST) (envelope-from ambrisko@ambrisko.com) Received: from ambrisko.com (localhost [127.0.0.1]) by www.ambrisko.com (8.12.9p2/8.12.9) with ESMTP id i243i3Cf041402; Wed, 3 Mar 2004 19:44:03 -0800 (PST) (envelope-from ambrisko@ambrisko.com) Received: (from ambrisko@localhost) by ambrisko.com (8.12.9p2/8.12.9/Submit) id i243i20r041394; Wed, 3 Mar 2004 19:44:02 -0800 (PST) (envelope-from ambrisko) From: Doug Ambrisko Message-Id: <200403040344.i243i20r041394@ambrisko.com> In-Reply-To: <78841.1078239798@critter.freebsd.dk> To: Poul-Henning Kamp Date: Wed, 3 Mar 2004 19:44:02 -0800 (PST) X-Mailer: ELM [version 2.4ME+ PL94b (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII cc: freebsd-current@freebsd.org cc: Colin Percival Subject: Re: detecting overheating processors? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Mar 2004 03:44:04 -0000 Poul-Henning Kamp writes: | In message <6.0.1.1.1.20040302124613.03af9150@imap.sfu.ca>, Colin Percival writes: | > I'm seeing something very interesting with FreeBSD Update: Lots | >of overheating processors. FreeBSD Update operates by checking | >MD5 hashes, applying patches, and checking the MD5 hashes of the | >patched files. If the file is wrong after patching, it downloads | >the entire file (and verifies its hash). | | In my experience MD5 does seem to be a really good CPU heater. Mine is: sh while : do done and watch the temperature go up immediately. In about 15 minutes or less it will be at max. I found this out by accident and wondered one this one system kept crashing. Some CPUs are more sensitive to temperature then others. Some heat sinks work better. Doug A.