How to debug random bus errors?

[Orion Poplawski]

We're seeing programs die with "bus error" (SIGBUS) randomly on a dual 
processor Opteron machine.  I've run memtest86+ and cpuburn stress tests 
with no failure.  gdb on a core file seems uninteresting.  Is there some 
way to trace the kernel to try to get more insight?

Thanks!

--
Orion Poplawski
System Administrator                  303-415-9701 x222
NWRA/CoRA Division                    FAX: 303-415-9702
3380 Mitchell Lane                  orion@xxxxxxxxxxxxx
Boulder, CO 80301              http://www.cora.nwra.com

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