Re: [PATCH][RFC] P4/Xeon Thermal LVT support

Maciej W. Rozycki (
Wed, 27 Mar 2002 17:15:07 +0100 (MET)

On Wed, 27 Mar 2002, Zwane Mwaikambo wrote:

> > high-priority interrupt as the condition is serious, if not critical --
> > system failures, such as bus exceptions, machine check faults, parity
> > errors, power failures, etc. demand a high priority service.
> Its really not that critical, its more informational, the interrupt
> handler in fact only displays a warning, by which time the hardware is
> already handling the condition.

How can't it be critical? Your system is overheating. It is about to
fail -- depending on the configuration, it'll either crash or be shut down
by hardware (consider fire in the server room as well). Either way the
condition should be caught ASAP, for proper steps to be taken by the OS
and/or the operator. Otherwise it might have no second chance to get
reported and the system will die silently -- you'll not know the reason
until you get at the console (or its remains). It may be too late then.

+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+        e-mail:, PGP key available        +

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