Have you called  $pm->wait_all_children;?

It will tidy up the zombies.

UPDATE: ignore this -- your code never ends so there's nowhere to call wait_all_children from, I guess your problem must be something else.

In reply to Re: Parallel::ForkManager leaves a zombie process from last child by RichardK
in thread Parallel::ForkManager leaves a zombie process from last child by makow2

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