New submission from STINNER Victor <vstin...@redhat.com>:
test_semaphore_tracker_sigint() emits a warning. If the test is run with -W
error, the test fails.
vstinner@apu$ ./python -m test test_multiprocessing_fork -v -m
test_semaphore_tracker_sigint
(...)
test_semaphore_tracker_sigint
(test.test_multiprocessing_fork.TestSemaphoreTracker) ...
/home/vstinner/prog/python/master/Lib/multiprocessing/semaphore_tracker.py:55:
UserWarning: semaphore_tracker: process died unexpectedly, relaunching. Some
semaphores might leak.
warnings.warn('semaphore_tracker: process died unexpectedly, '
ok
(...)
Tests result: SUCCESS
vstinner@apu$ ./python -Werror -m test test_multiprocessing_fork -v -m
test_semaphore_tracker_sigint
(...)
======================================================================
ERROR: test_semaphore_tracker_sigint
(test.test_multiprocessing_fork.TestSemaphoreTracker)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/vstinner/prog/python/master/Lib/test/_test_multiprocessing.py",
line 4533, in test_semaphore_tracker_sigint
self.check_semaphore_tracker_death(signal.SIGINT, False)
File "/home/vstinner/prog/python/master/Lib/test/_test_multiprocessing.py",
line 4521, in check_semaphore_tracker_death
sem = ctx.Semaphore()
File "/home/vstinner/prog/python/master/Lib/multiprocessing/context.py", line
82, in Semaphore
return Semaphore(value, ctx=self.get_context())
File "/home/vstinner/prog/python/master/Lib/multiprocessing/synchronize.py",
line 127, in __init__
SemLock.__init__(self, SEMAPHORE, value, SEM_VALUE_MAX, ctx=ctx)
File "/home/vstinner/prog/python/master/Lib/multiprocessing/synchronize.py",
line 81, in __init__
register(self._semlock.name)
File
"/home/vstinner/prog/python/master/Lib/multiprocessing/semaphore_tracker.py",
line 83, in register
self._send('REGISTER', name)
File
"/home/vstinner/prog/python/master/Lib/multiprocessing/semaphore_tracker.py",
line 90, in _send
self.ensure_running()
File
"/home/vstinner/prog/python/master/Lib/multiprocessing/semaphore_tracker.py",
line 55, in ensure_running
warnings.warn('semaphore_tracker: process died unexpectedly, '
UserWarning: semaphore_tracker: process died unexpectedly, relaunching. Some
semaphores might leak.
(...)
Tests result: FAILURE
----------
components: Tests
messages: 317372
nosy: davin, pitrou, vstinner
priority: normal
severity: normal
status: open
title: test_multiprocessing_fork: test_semaphore_tracker_sigint() fails with -W
error
versions: Python 3.8
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue33613>
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