From owner-freebsd-acpi@FreeBSD.ORG Thu Aug 2 17:59:32 2007 Return-Path: Delivered-To: acpi@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A1E4E16A41F; Thu, 2 Aug 2007 17:59:32 +0000 (UTC) (envelope-from imp@bsdimp.com) Received: from harmony.bsdimp.com (bsdimp.com [199.45.160.85]) by mx1.freebsd.org (Postfix) with ESMTP id 468D613C4CA; Thu, 2 Aug 2007 17:59:32 +0000 (UTC) (envelope-from imp@bsdimp.com) Received: from localhost (localhost [127.0.0.1]) by harmony.bsdimp.com (8.13.8/8.13.4) with ESMTP id l72HvDJ7061335; Thu, 2 Aug 2007 11:57:15 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Thu, 02 Aug 2007 11:57:13 -0600 (MDT) Message-Id: <20070802.115713.71149193.imp@bsdimp.com> To: nate@root.org From: Warner Losh In-Reply-To: <46B20F91.5080709@root.org> References: <46AE8F78.1060203@root.org> <20070801.211718.1683324313.imp@bsdimp.com> <46B20F91.5080709@root.org> X-Mailer: Mew version 3.3 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.0 (harmony.bsdimp.com [127.0.0.1]); Thu, 02 Aug 2007 11:57:16 -0600 (MDT) Cc: acpi@FreeBSD.ORG, freebsd-hackers@FreeBSD.ORG, ume@FreeBSD.ORG, gahr@gahr.ch Subject: Re: [patch] enhance powerd(8) to handle max temperature 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: Thu, 02 Aug 2007 17:59:32 -0000 From: Nate Lawson Subject: Re: [patch] enhance powerd(8) to handle max temperature Date: Thu, 02 Aug 2007 10:08:33 -0700 > M. Warner Losh wrote: > > In message: <46AE8F78.1060203@root.org> > > Nate Lawson writes: > > : Hajimu UMEMOTO wrote: > > : >>>>>> On Mon, 30 Jul 2007 23:31:33 +0200 > > : >>>>>> Pietro Cerutti said: > > : > gahr> My patch is really just a first draft that I wrote in order to have > > : > gahr> feedbacks on the general idea to implement a temperature controlling > > : > gahr> system inside powerd, and doesn't implement hysteresis as you noted, and > > : > gahr> your feedback is that it's not a good idea, which I respect. > > : > > > : > It is rather backward, IMHO. I did implement a passive cooling > > : > feature as an enhancement of powerd(8) like you did, during initial > > : > phases. Then, I implemented it in our kernel as a result. > > : > > : I'll take a look at your patch. Umemoto-san is right in that you really > > : want the kernel to control cooling. What happens if powerd dies/hangs > > : and your system burns up? Passive cooling is often a last resort to > > : keep the system from overheating. > > > > I keep getting the system shutting down on my HP by FreeBSD because > > the temperature exceeds the _CRT value. Maybe there's something wrong > > with my values, since it happens a lot: > > > > hw.acpi.thermal.min_runtime: 0 > > hw.acpi.thermal.polling_rate: 10 > > hw.acpi.thermal.user_override: 0 > > hw.acpi.thermal.tz0.temperature: 0.0C > > hw.acpi.thermal.tz0.active: -1 > > hw.acpi.thermal.tz0.passive_cooling: 1 > > hw.acpi.thermal.tz0.thermal_flags: 0 > > hw.acpi.thermal.tz0._PSV: 90.0C > > hw.acpi.thermal.tz0._HOT: -1 > > hw.acpi.thermal.tz0._CRT: 94.0C > > hw.acpi.thermal.tz0._ACx: 40.0C -1 -1 -1 -1 -1 -1 -1 -1 -1 > > > > Note: temperature is always 0.0C. > > > > What can I do to help my situation, if I really want the kernel doing > > the cooling? > > Your embedded controller is timing out. Thus you're getting a bogus > value for _TMP. > > Those settings for _CRT appear correct. It's the "measured" temperature > that is wrong. So how do I track down the problem? I'm tired of the system just shutting down when I'm building OOO or even something simpler like doing a buildworld... Warner