Check that the CPU fans are functioning correctly. You may have a
cooling problem that only appears under load.


On Wed, 2003-10-22 at 23:51, Lowell Gilbert wrote:

> "Hicks, Raymond" <[EMAIL PROTECTED]> writes:
> >   I was hoping to get some insight into what could be causing these issues.
> > Any thing you can do to help is appreciated. Here is the situation: 
> > 
> >   I have an asus A7M-266D with dual athalon MP 1800+  and 1.5G of DDR 2100
> > RAM.  The machine has 3 120GIG IDE drives, one floppy and one CD drive.
> > Drives are western digital. The kernel is compiled for SMP and the release
> > is FREEBSD-5.1-RELEASE although sources were current till about June at
> > which time I moved and did not do much to system.  Now I have gotten the
> > system out of storage and set it up .. it runs fine but I have recently
> > tried to cvsup then recompile world and I get: 
> > 
> > KERNEL PANIC with CPUID = 0 
> > = 00000000
> > 
> >   It seems like a random error in that it sometimes does it in 2 minutes and
> > other times it will go for almost 10 minutes.  Once it happens, the machine
> > reboots.  I originally thought this could be due to heat from processors so
> > I took measures to reduce heat.  There are currently 2 fans pushing air into
> > the case and 3 fans plus 1 blower pulling air out of the case.  Each CPU has
> > a new amd cpu fan with bearings and the temp is well within the limits of
> > normal operation.   I am at a loss for this and was wondering if anyone had
> > any ideas on ways to fix / mitigate.  
> Still sounds like some kind of hardware problem, because it runs fine
> as long as it isn't under pressure and fails in a different way each
> time.  If it's always the same CPU, that may be a hint.  Bad RAM is
> the most frequent culprit for such unpredictable problems, though.
> If you have the opportunity to disable SMP and try again (e.g., you
> have a GENERIC kernel around that matches your userland), that would
> be worth a shot.
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