celluloid/celluloid — pull request #200 by halorgium (2013-04-19 02:41:50+00:00)
Title: The lack of the at_exit handler causes hard deadlocks

If you run this: https://gist.github.com/halorgium/14465667d26e4b053180
You will get a deadlock.

This is definitely an issue with `TaskFiber`s only as `TaskThread` behaves correctly.

We either need to add the `at_exit` handler back or get to the root cause.