Upstream discussion points to https://github.com/systemd/systemd/pull/8429
** Summary changed: - ubuntu-bug systemd + "shutdown[1]: Failed to wait for process: Protocol error" at shutdown or reboot and hangs. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1832754 Title: "shutdown[1]: Failed to wait for process: Protocol error" at shutdown or reboot and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1832754/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs