Comment 2 for bug 1214241

I am seeing this as well. After upgrading from Ubuntu 12.10 to 13.04 a bug was introduced which caused the emulator to crash as soon as a game was selected to be played. When that bug was fixed, this bug was introduced instead. It is now playable, but without exception it hangs in the middle of the game after ~1 hour. Only thing that helps is to kill the process and restart.

Let me know what information I can give to help you troubleshoot this. coredump?