Throwing up my hand as well! Upstart, with a particular job, is in limbo (hung start/stop) until I reboot the relevant hosts, which at this time is not an option to maintain our 99.99%!
This seems like a pretty serious bug .. surprised it's been here for 2 years and more people aren't screaming? Or I'm not sure - perhaps we're all doing seething wrong and there's a way to unstick these jobs without rebooting? :)
