From owner-freebsd-current@FreeBSD.ORG Sun Dec 21 22:16:03 2008 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E7423106564A for ; Sun, 21 Dec 2008 22:16:03 +0000 (UTC) (envelope-from nslay@comcast.net) Received: from QMTA06.emeryville.ca.mail.comcast.net (qmta06.emeryville.ca.mail.comcast.net [76.96.30.56]) by mx1.freebsd.org (Postfix) with ESMTP id CF7C08FC14 for ; Sun, 21 Dec 2008 22:16:03 +0000 (UTC) (envelope-from nslay@comcast.net) Received: from OMTA08.emeryville.ca.mail.comcast.net ([76.96.30.12]) by QMTA06.emeryville.ca.mail.comcast.net with comcast id ttxL1a00E0FhH24A6yG3S5; Sun, 21 Dec 2008 22:16:03 +0000 Received: from LIGHTBULB.LOCAL ([68.35.224.189]) by OMTA08.emeryville.ca.mail.comcast.net with comcast id tyFz1a00545o48c8UyG1vj; Sun, 21 Dec 2008 22:16:03 +0000 Message-ID: <494EA2E2.9050909@comcast.net> Date: Sun, 21 Dec 2008 15:11:14 -0500 From: Nathan Lay User-Agent: Thunderbird 2.0.0.18 (X11/20081221) MIME-Version: 1.0 To: "Paul B. Mahol" References: <494DDA1B.6050206@comcast.net> <3a142e750812210514k6dc41c0o32d7ef57e765dcc8@mail.gmail.com> <494E712B.802@comcast.net> <3a142e750812210919s3bd5876q8f45759f1228906b@mail.gmail.com> In-Reply-To: <3a142e750812210919s3bd5876q8f45759f1228906b@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-current@freebsd.org, freebsd-stable Subject: Re: Very serious cooling issues CURRENT/STABLE X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Sun, 21 Dec 2008 22:16:04 -0000 Paul B. Mahol wrote: > On 12/21/08, Nathan Lay wrote: > >> Paul B. Mahol wrote: >> >>> On 12/21/08, Nathan Lay wrote: >>> >>> >>>> acpi.thermal.min_runtime: 0 >>>> hw.acpi.thermal.polling_rate: 10 >>>> hw.acpi.thermal.user_override: 0 >>>> hw.acpi.thermal.tz0.temperature: 37.0C >>>> hw.acpi.thermal.tz0.active: -1 >>>> >>>> >>> Is this one ever changed? >>> >>> >>> >>>> hw.acpi.thermal.tz0.passive_cooling: 1 >>>> hw.acpi.thermal.tz0.thermal_flags: 0 >>>> hw.acpi.thermal.tz0._PSV: 89.5C >>>> hw.acpi.thermal.tz0._HOT: -1 >>>> hw.acpi.thermal.tz0._CRT: 93.0C >>>> hw.acpi.thermal.tz0._ACx: -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 >>>> >>>> >>> This one means that coling will never be used, why: >>> my output looks like this: >>> hw.acpi.thermal.tz0._ACx: 85.0C 75.0C 60.0C 50.0C -1 -1 -1 -1 -1 -1 >>> >>> >>> >>>> hw.acpi.thermal.tz0._TC1: 5 >>>> hw.acpi.thermal.tz0._TC2: 4 >>>> hw.acpi.thermal.tz0._TSP: 600 >>>> >>>> >>> You can play with all thermal values once you enable: >>> hw.acpi.thermal.user_override >>> >>> But acpi may redo such values again after some time. >>> You only real workaround is to use modified acpi ASL: >>> it is explained in handbook. >>> >>> In my case I fixed in that way bogus kernel >>> message "_CRT value is absurd, ignored". >>> >>> >>> >>> >> hw.acpi never displayed thermal values for some reason. However, after >> loading acpi_ibm, I can query those values without a problem >> dev.acpi_ibm.0.thermal: 49 41 33 48 27 -1 22 -1 >> >> I'm not sure the critical temperature (99C) is a problem, but what I >> have observed is you should never be near it. None of these thinkpads >> got over 80C under load with FreeBSD installed until recently. ACPI's >> ASL does not appear to be the problem as it has worked correctly in the >> past. >> > > Until recenty when, can you point into svn revision? > > If the same overheat happens with acpi disabled that I dont see how > freebsd acpi can help you. > > > Ok, I ran portupgrade on both systems with ACPI disabled. I do not experience any overheating issues. The thinkpads also do not feel very hot while building large ports like jdk16 and gcc42 as they do when ACPI is enabled. As I said, the laptops only started recently overheating. The T40 started overheating when CURRENT was installed and the T43 started overheating on a more recent STABLE. I'll try to pinpoint exactly which STABLE build experienced this. Best Regards, Nathan Lay