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Date:      Thu, 4 Jan 2001 10:08:51 -0600 (CST)
From:      Chris Dillon <cdillon@wolves.k12.mo.us>
To:        Michael Wells <mwells@zeus.com>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: SMP kernel overheats
Message-ID:  <Pine.BSF.4.21.0101041002140.38071-100000@mail.wolves.k12.mo.us>
In-Reply-To: <20010104102301.B13113@imap.cam.zeus.co.uk>

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On Thu, 4 Jan 2001, Michael Wells wrote:

> What I was wondering was is this a known problem? Can it be fixed?  
> Any other ideas? Thanks, your help is much appreciated.

While it is possible to help keep things cooler by putting the
processor to sleep in the idle loop (which FreeBSD does on non-SMP
systems), that alone is not a solution to a thermal problem.  If your
system were under heavy load (and if it isn't, WHY do you have an SMP
system in the first place?), you would have exactly the same problem
no matter which operating system you used, since the processor would
not be put to sleep very often.  Your only solution is to fix the
problem the right way, by providing more cooling.  As a stopgap
measure until you either stick the thing inside a refrigerator or at
least throw a few more fans in there, you can compile a non-SMP
FreeBSD kernel and you will get the idle-loop "cooling" effect.


-- Chris Dillon - cdillon@wolves.k12.mo.us - cdillon@inter-linc.net
   FreeBSD: The fastest and most stable server OS on the planet.
   For IA32 and Alpha architectures. IA64, PPC, and ARM under development.
   http://www.freebsd.org




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