Oct 09 04:02:56 2011 mailmanctl(5074): PID unreadable in: /var/mailman/data/master-qrunner.pid 
Oct 09 04:02:56 2011 mailmanctl(5074): [Errno 2] No such file or directory: '/var/mailman/data/master-qrunner.pid' 
Oct 09 04:02:56 2011 mailmanctl(5074): Is qrunner even running?