[Bug 29374] Unknown Crash or Kernel Panic in Gnome with smp system.

[Ben Collins]

Public bug report changed:
https://launchpad.net/malone/bugs/29374

Comment:
Yeah, this is likely a hardware issue. The only thing I saw in the
errata is the ECC multi-bit memory error causing an NMI.

Can you run memtest on your machine? Also, can you attempt to disable
ECC in your BIOS (not sure if this is possible, but it might let you).