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

[Masayuki Yamamoto]

Changes by Masayuki Yamamoto <ma3yuki.8mamo10 at gmail.com>:


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pull_requests: +2652

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