[PyPy-issue] [issue693] Coroutine garbage collection prevents switches

[Chris Smowton]

Chris Smowton <cs448 at cam.ac.uk> added the comment:

Another interesting case happens if a coroutine saves itself from the GC in its
exception handler -- e.g. try: blah except CoroutineExit: global g; g =
stackless.coroutine.getcurrent(). It looks like such a coroutine becomes a weird
zombie creature that won't be killed again, even if it becomes garbage for a
second time.

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