Comment 0 for bug 717205

There seems to be a bug in Twisted 10.2. If something bad happens, the system can get into the state where it isn't stopped, but both SIGTERM and SIGINT refuse to shut down because they "can't stop a reactor that isn't running".

I wasn't very worried about it, but it just happened in production, so I'm escalating the severity. The traceback looks something like this:
2011-02-11 11:21:17+0000 [-] Received SIGTERM, shutting down.
2011-02-11 11:21:17+0000 [-] Unhandled Error
        Traceback (most recent call last):
          File "/srv/bazaar.launchpad.net/production/launchpad-rev-12351/eggs/Twisted-10.2.0_4395fix_1-py2.6-linux-x86_64.egg/twisted/application/app.py", line 390, in startReactor
            self.config, oldstdout, oldstderr, self.profiler, reactor)
          File "/srv/bazaar.launchpad.net/production/launchpad-rev-12351/eggs/Twisted-10.2.0_4395fix_1-py2.6-linux-x86_64.egg/twisted/application/app.py", line 311, in runReactorWithLogging
            reactor.run()
          File "/srv/bazaar.launchpad.net/production/launchpad-rev-12351/eggs/Twisted-10.2.0_4395fix_1-py2.6-linux-x86_64.egg/twisted/internet/base.py", line 1158, in run
            self.mainLoop()
          File "/srv/bazaar.launchpad.net/production/launchpad-rev-12351/eggs/Twisted-10.2.0_4395fix_1-py2.6-linux-x86_64.egg/twisted/internet/base.py", line 1167, in mainLoop
            self.runUntilCurrent()
        --- <exception caught here> ---
          File "/srv/bazaar.launchpad.net/production/launchpad-rev-12351/eggs/Twisted-10.2.0_4395fix_1-py2.6-linux-x86_64.egg/twisted/internet/base.py", line 762, in runUntilCurrent
            f(*a, **kw)
          File "/srv/bazaar.launchpad.net/production/launchpad-rev-12351/eggs/Twisted-10.2.0_4395fix_1-py2.6-linux-x86_64.egg/twisted/internet/base.py", line 570, in stop
            "Can't stop reactor that isn't running.")
        twisted.internet.error.ReactorNotRunning: Can't stop reactor that isn't running.