This is unlikely related to the kernel. When trying to launch "jackd2 -v -dalsa" it fails with a SIGBUS error. With verbose messages on, the last message printed is:
Jack: JackEngine::NotifyAddClient: name = system Working on getting a usable stack trace. ** Also affects: jackd2 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1074673 Title: JACK server fails to start To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-nexus7/+bug/1074673/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs