question on a kernal "uhhuh" message

[Paul Newell]

While running a long "yum update", I got the following message in the 
middle:

    (367/406): cscope-15.6-2.fc9.i386.rpm                    | 141
    kB     00:01    
    (368/406): gstreamer-p  86% |  20% |==        |  57 kB/s | 192
    kB     00:12 ETA
    Message from syslogd at chowder at Aug 25 11:55:03 ...
     kernel: Uhhuh. NMI received for unknown reason a1 on CPU 0.

    Message from syslogd at chowder at Aug 25 11:55:03 ...
     kernel: You have some hardware problem, likely on the PCI bus.

    Message from syslogd at chowder at Aug 25 11:55:03 ...
     kernel: Dazed and confused, but trying to continue
    (368/406): gstreamer-plugins-base-0.10.19-2.fc9.i386.rpm | 929
    kB     00:12    
    (369/406): exempi-2.0.1-1.fc9.i386.rpm                   | 297
    kB     00:03

I am assuming that the second occurrence of "(368/406): 
gstreamer-plugins-base-0.10.19.2.fc9.i386.rpm" indicates that it did 
finish that rpm given that the rpm_debug_check and Transaction Test 
seemed to have passed.

So, I am figuring this is my computer burping somewhere. Even though it 
is trying to point me at my PCI bus, I do not know what test / diags I 
should be running to find out if there really is a hardware problem and, 
if so, where and then how to deal with it.

Any suggestions appreciated ... if I can provide any more info, please 
let me know what would be helpful.

This is related to my prior email "update error on F9 -- round two" if 
more context is needed.

Thanks,
Paul