The newest upstream kernel has the same bug. The symptoms in that upstream bug are identical (I also got this after an update to Yosemite) so this is almost certainly the same.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1403653 Title: Kworker takes 100% CPU when booting with efi To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1403653/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
