Per request, I've updated to the latest kernel, 3.13.0-32-generic, and still have the issue. Updated dmesg attached.
** Attachment added: "dmesg output on 3.13.0-32-generic" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/727459/+attachment/4164624/+files/sample%20dmesg%20new.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/727459 Title: TSC is not reliable under Xen on some Intel CPUs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/727459/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs