Bug 64125 seems to be a duplicate. >From that report, here's an upstream bug report:
http://bughost.org/bugzilla/show_bug.cgi?id=1096 ** Bug watch added: Bughost.org tracker #1096 http://bughost.org/bugzilla/show_bug.cgi?id=1096 ** Also affects: bugzilla (upstream) via http://bughost.org/bugzilla/show_bug.cgi?id=1096 Importance: Unknown Status: Unknown -- CPU soft lockup during bootup https://launchpad.net/bugs/63418 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs