STINNER Victor <vstin...@python.org> added the comment:
There is a race condition. The main thread closes a file descriptor which is
part of the asyncore loop "map", a thread polls on the asyncore "map" file
descriptors.
-- Main thread --
Close a socket:
File "/usr/home/vstinner/python/master/Lib/test/test_logging.py", line 1072,
in test_basic
server.stop()
File "/usr/home/vstinner/python/master/Lib/test/test_logging.py", line 870,
in stop
self.close()
-- TestSMTPServer thread --
Wait in asyncore.loop():
Exception in thread Thread-1 (serve_forever):
Traceback (most recent call last):
File "/usr/home/vstinner/python/master/Lib/threading.py", line 990, in
_bootstrap_inner
self.run()
File "/usr/home/vstinner/python/master/Lib/threading.py", line 928, in run
self._target(*self._args, **self._kwargs)
File "/usr/home/vstinner/python/master/Lib/test/test_logging.py", line 863,
in serve_forever
asyncore.loop(poll_interval, map=self._map)
File "/usr/home/vstinner/python/master/Lib/asyncore.py", line 211, in loop
poll_fun(timeout, map)
File "/usr/home/vstinner/python/master/Lib/asyncore.py", line 145, in poll
r, w, e = select.select(r, w, e, timeout)
OSError: [Errno 9] Bad file descriptor
----------
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue43842>
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