So I tested linux 4.8 final and the regression still exists. On another note I also tested linux 4.7 and the issue does not exist there.
** Tags added: kernel-bug-exists-upstream ** Changed in: linux (Ubuntu Yakkety) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1627108 Title: X1Carbon comes to a crawl during high CPU usage tasks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1627108/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs