STINNER Victor <vstin...@python.org> added the comment:
> It seems like Connection.close() was called while Connection._send() was
> called. I added debug logs:
The connection was closed by terminate_broken() called by
_ExecutorManagerThread.run() thread:
test_killed_child
(test.test_concurrent_futures.ProcessPoolSpawnProcessPoolExecutorTest) ...
close handle 4
File "/home/vstinner/python/master/Lib/threading.py", line 908, in _bootstrap
self._bootstrap_inner()
File "/home/vstinner/python/master/Lib/threading.py", line 950, in
_bootstrap_inner
self.run()
File "/home/vstinner/python/master/Lib/concurrent/futures/process.py", line
313, in run
self.terminate_broken(cause)
File "/home/vstinner/python/master/Lib/concurrent/futures/process.py", line
456, in terminate_broken
self.join_executor_internals()
File "/home/vstinner/python/master/Lib/concurrent/futures/process.py", line
503, in join_executor_internals
self.thread_wakeup.close()
File "/home/vstinner/python/master/Lib/concurrent/futures/process.py", line
75, in close
self._writer.close()
----------
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue39995>
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