So this means that the original cupsd process misses the signal sent by the daemon process, but the daemon process works correctly. Perhaps there is something broken with the CUPS daemon running as non-root. Perhaps the signal from the non-root CUPS daemon is not seen by the original process running as root.
** Changed in: cupsys (Ubuntu) Importance: Undecided => Medium -- Cupsys hangs on restart and stop-start https://launchpad.net/bugs/55295 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs