From owner-freebsd-acpi@FreeBSD.ORG Wed Feb 20 21:51:43 2008 Return-Path: Delivered-To: freebsd-acpi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9F6A816A407 for ; Wed, 20 Feb 2008 21:51:43 +0000 (UTC) (envelope-from dieterich.joh@googlemail.com) Received: from fg-out-1718.google.com (fg-out-1718.google.com [72.14.220.158]) by mx1.freebsd.org (Postfix) with ESMTP id 2C35F13C455 for ; Wed, 20 Feb 2008 21:51:42 +0000 (UTC) (envelope-from dieterich.joh@googlemail.com) Received: by fg-out-1718.google.com with SMTP id 16so2238252fgg.35 for ; Wed, 20 Feb 2008 13:51:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:user-agent:mime-version:to:subject:references:in-reply-to:content-type:content-transfer-encoding:from; bh=1GG3p0QT/+dZjpMzGUFNQgGoHFeDoD+mENaRyStsDnE=; b=xw6HkqSx6vefCBfQl1utJjpRX3W8JcB2SXOhSP8tjBJ9LQi5zNRn8SOGb1gJPwYE+RnotxR1VMiDJYh8EigwxJ+jg1jg5na6dcz9BVMoa5AHqugRY77p/+LKTMFYA7IKfLjkFLluSTsSCKxa8AeR6UBIHfgK3VRLPAcVLJtimCE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=message-id:date:user-agent:mime-version:to:subject:references:in-reply-to:content-type:content-transfer-encoding:from; b=FgeLi+55SMYwsiHGpiM14mkwDMJ3qtXyOtb1h4qD8g0DWItv3r/hqga2AplNEhqN6wVW/H0FVawP+iXxkra6+zUgZq0IUOyRkCARVjwgDLKsujqvc+kom79o3MtqS0oky0i8ST/XIpuPK50ZTTf5L+cADNjF5P8UlZ6BsOlrMBA= Received: by 10.86.97.7 with SMTP id u7mr8713693fgb.39.1203544301976; Wed, 20 Feb 2008 13:51:41 -0800 (PST) Received: from ?192.168.1.100? ( [79.210.117.34]) by mx.google.com with ESMTPS id e20sm14457800fga.1.2008.02.20.13.51.39 (version=TLSv1/SSLv3 cipher=RC4-MD5); Wed, 20 Feb 2008 13:51:40 -0800 (PST) Message-ID: <47BCA0EA.4080508@gmail.com> Date: Wed, 20 Feb 2008 22:51:38 +0100 User-Agent: Thunderbird 2.0.0.9 (X11/20080213) MIME-Version: 1.0 To: Kevin Oberman , freebsd-acpi@freebsd.org References: <20080220213200.BD12E4500F@ptavv.es.net> In-Reply-To: <20080220213200.BD12E4500F@ptavv.es.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit From: Johannes Dieterich Cc: Subject: Re: [RFC] Patch to enable temperature ceiling in powerd X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 20 Feb 2008 21:51:43 -0000 First, thanks for your reply! Kevin Oberman wrote: >> Date: Wed, 20 Feb 2008 22:10:41 +0100 >> From: Johannes Dieterich >> Sender: owner-freebsd-acpi@freebsd.org >> >> Alexandre "Sunny" Kovalenko wrote: >>> On Sun, 2008-02-17 at 14:40 +0100, Johannes Dieterich wrote: >>>> Hi, >>>> some not so nice news: >>>> >>>> That still holds true. Unfortunately portupgrade gcc overheats it again. >>> You might want to do >>> >>> sysctl hw.acpi.thermal.user_override=1 >>> sysctl hw.acpi.thermal.tz1._PSV=85C >>> >>> and see if this gets you through the gcc compilation. >> for a long long time it looked very good. But then it again overheated.I >> might want to stress again that it happened out of a sudden. sysctl >> dev.cpu reports 83-87 degrees for a long time and then it SUDDENLY shuts >> down saying it is over 127 degrees. The workload between those two data >> points has not changed. > > This is sounding like a hardware problem. > > On almost all modern systems, the CPU temperature is read from a single > junction on the silicon of the CPU. If it makes sudden, inexplicable > jumps, this implies that either the junction on the chip or the support > hardware on the mobo (this is analog stuff) is misbehaving. > > It is possible that something is causing BIOS to handle the values > incorrectly, but that would seem very unlikely to me. In general, I am willing to believe these things. There is a but though. The problem appeared when upgrading from 6.2 to 7.0. OK, hardware breaks and coincidences happen. But I tested later with an openSUSE and a Knoppix Live CD (OK, JUST a LiveCD) and a stress test and it never went over 79 degrees. But it reproducibly happens with FreeBSD 7.0 and also there just under load (which puts the temperature anyway to 85 degrees). I do lack an install of a Linux to test these issues there because the notebook is my productive system at the moment. So do you think this issue would not show with a Linux LiveCD but an install? Is it worth in your opinion putting the hard drive out and finding another one to install a quick SuSE/RedHat/whatever for testing? Thanks, Johannes