Hi Joseph, Briefly, the problem manifested on upgrade to Precise, but I tracked the regression down to 3.1.0-rc3 series. There are a few more details in bug #981936, comment 29 onwards, including a link to the upstream bugzilla I raised (incorrectly) before discussion moved to the mailing lists (discussion linked from the kernel bugzilla).
** Bug watch added: Linux Kernel Bug Tracker #43244 http://bugzilla.kernel.org/show_bug.cgi?id=43244 ** Also affects: linux via http://bugzilla.kernel.org/show_bug.cgi?id=43244 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1000197 Title: 1217:00f7 Firewire prevents booting To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1000197/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs