The patch has made its way into the linux-3.16.y-queue upstream branch, so it should be in Utopic shortly.
c3c75b2 blk-mq: Fix uninitialized kobject at CPU hotplugging ** Also affects: linux (Ubuntu Utopic) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Utopic) Status: New => Confirmed ** Changed in: linux (Ubuntu Utopic) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1403459 Title: kernel bug when hotplugging a CPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1403459/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs