Screenshot of kernel panic message when this happens. As mentioned, I'm now using the low-latency kernel, and have threadirqs set. It may be coincidence, but this error now hardly ever happens on mains power. Reproducible consistently on battery though.
** Attachment added: "IMG_20120628_133447.jpg" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1002798/+attachment/3206651/+files/IMG_20120628_133447.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1002798 Title: Ubuntu 12.04 hangs on shutdown To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1002798/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs