Kernel Panic

["Nick Erickson" <nerickson arctic-marketing com>]

I have RH 7.1 intel installed on a machine that now frequently crashes.  

Here is a snippet of a part of what is on the screen today....

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Code: 00 00 00 ed 85 f6 74 5f 8b 83 4c 05 00 00 85 c0 74 55 9c 5f
Kernel Panic: Aiee, killing interrupt handler!
In interrupt handler - not syncing

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System has been on 7.1 for several months.  Have kept it updated
with RHN.  Problem now takes the system down every couple of days.
There have been no hardware or component changes at all since install
of OS.

Anyone have ideas where to point me to resolve the problem?