[PlanetCCRMA] CCRMA FC3 smp kernel crashing

[pirrone]

System is a Dell 470 dual 3.0 GHz Xeons with 1 GB RAM and dual SCSI 
drives in RAID 0, a PCIe nVidia Quadro NVS and Audigy 2 running a 
previously stable Fedora Core 3. 

Just updated kernel to smp-2.6.11-0.3.rdt.rhfc3.ccrma with all other 
updates installed and have been getting sudden hard lockups without any 
particular pattern - browsing the Web, working in apps, in a terminal 
window with MC open, etc.  No apparent pattern at all.  No problem with 
the uniprocessor kernels.

I'm attaching a file extracted from /var/log/messages (and this log 
entry does not always occur when system crashes, it's appeared twice, 
other times there is nothing relating to the crash at all) with some 
unrelated lines removed with spaces left. 

I tried to stimulate the system in the few ways I could when it was 
unresponsive, like plugging in a USB flash drive, and unplugging the UBB 
modem as I was online last time it happened, and those events were 
registered into the log file, though there was no sign on the screen - 
Fluxbox with gKrellM up in the corner.  The display and input devices 
were completely frozen.

What say Fernando or anyone, seen or heard of this happening with SMP, 
this kernel, realtime, nVidia, whatever?  Got a fix?

Thanks!

Frank
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