OK I'm about to test the upstream kernel now. Before i do that i wanted to find a way to reliably reproduce it and power cycled my connected USB MIDI synth. While doing that another protection fault occured which looks like it is caused by ALSA.
I reported that one here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/940511 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/936211 Title: general protection fault: 0000 [#1] SMP while using Java Communications API (MIDI) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/936211/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs