[issue31886] Multiprocessing.Pool hangs after re-spawning several worker process.

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

Generally speaking, queues can remain in an inconsistent state after a process crash (because the process might have crashed just after acquiring a shared semaphore or sending part of a large message).  It's not obvious to me how we could make them safer, at least under Unix where there's no widely-available message-oriented communication facility that I know of.

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nosy: +davin, pitrou
versions: +Python 3.7

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