As many have commented, this is almost certainly a bug in the bluez udev rule 'hid2hci', that is caused by the introduction of 'bind' and 'unbind' uevents.
Can anyone who can reproduce this bug test with the bluez package from this ppa: https://launchpad.net/~ddstreet/+archive/ubuntu/lp1759836 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1759836 Title: systemd-udevd consumes 100% of CPU To manage notifications about this bug go to: https://bugs.launchpad.net/kernel/+bug/1759836/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
