OK have tested with mainline kernel 3.3.0-999-generic today. Looks like the same problem. I didnt see the first panic (but know it did becuase it restarted).
In the next test I booted into single user mode without any kernel options and it locked up without even reporting a panic, however it did first print on the console the usual prelude message "Disabling lock debugging due to kernel taint". In the final test I have booted with clock_source=acpi_pm into gnome and it has also died, again with the same taint message. This time it managed to reboot, though I didnt get a panic message on the console for some reason. Thanks for your help. Where to next? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/801840 Title: MCE Kernel Panic on kernel 2.6.38 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/801840/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
