Date: Sat, 01 Mar 2008 18:24:40 +0100 From: Johannes Dieterich <dieterich.joh@googlemail.com> To: Peter Jeremy <peterjeremy@optushome.com.au>, freebsd-acpi@freebsd.org Subject: Re: [RFC] Patch to enable temperature ceiling in powerd Message-ID: <47C99158.4000106@gmail.com> In-Reply-To: <20080221083635.GI51095@server.vk2pj.dyndns.org> References: <20080220213200.BD12E4500F@ptavv.es.net> <47BCA0EA.4080508@gmail.com> <Pine.GSO.4.64.0802201701420.7855@sea.ntplx.net> <20080221083635.GI51095@server.vk2pj.dyndns.org>
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Hello everybody! To get back to this discussion (sorry, normal job kicked me quite a bit last week). Peter Jeremy wrote: > On Wed, Feb 20, 2008 at 05:06:41PM -0500, Daniel Eischen wrote: >> I'm having similar problems with an Intel STL2 Tupelo motherboard >> after upgrading to 7.0. > > I had problems with one TZ on my laptop occasionally reporting > nonsense values. I suspect it was actually a dry joint somewhere near > the sensor. The MB eventually failed and the new MB is OK. We had a > similar issue on a server at work - the vendor noticed that the system > was reporting an abnormally high temperature in one zone whilst > investigating an unrelated problem. We eventually decided it was a > faulty sensor and a replacement board fixed it. What I have now is the original hard drive (some 80 gig Fujitsu one) with a freshly installed Fedora 8 on it. I have been letting two instances of gnuchess playing against each other for a couple of hours (yes, I know... best stress test ever... ;-) ) which kept cpu usage at a nice 100 percent on both cores for all that time. proc/acpi/thermal_zones/THM1/temperature (and THM0) reported temperatures around 70 degrees, never over 72 for all that time. Lid was closed, fan worked (not very noisy even) and blew a good load of hot air out. I am tempted to say that my overheating problem is not hardware related. Only parts different were ath0 not working with Fedora and hard drive being not the 160 gig WD I am using for FreeBSD. > >> Only under load does the temperature >> shoot up, but I know the chip isn't getting hot and the fan >> is running - I've felt around in there and nothing was even >> close to the 117+C it was sensing. > > Apart from the actual CPU, most parts of a system have a fairly > significant thermal mass so a rapid change in temperature either > indicates a catastrophic failure or the temperature sensor isn't > really reporting the temperature of the relevant zone. > I totally agree with you, Peter. And either the hardware just fails under FreeBSD (or with ath0 and the other hard drive running) OR it is a FreeBSD problem. Everybody is invited to tell me how to stress test the system as brutal as possible to show that the problem is hardware related. Regards, Johannes
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