[issue30703] Non-reentrant signal handler (test_multiprocessing_forkserver hangs)

[Matt Billenstein]

Matt Billenstein added the comment:

Verified this by letting the test_many_processes loop overnight (master at 42bc8beadd49)-- 34k passes later and no hangs.  Nice work!

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30703>
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