Comment 18 for bug 753306

Haw's process list shows what Tom's did from before my change: the XMLRPCRunner seems to be the one that is hanging.

One interesting thing is that it is also the only runner going *before* it hangs.

I still wonder if this is tied to the XMLRPCRunner starting to talk to LP before it goes down, but simply providing a socket timeout is apparently not sufficient, unfortunately.

I suspect that, for the next hang, we should get a Python gdb analysis of the Mailman processes with backtrace.py, a la what we do for LP (https://dev.launchpad.net/Debugging/GDB).