[issue31931] test_concurrent_futures: ProcessPoolSpawnExecutorTest.test_shutdown_race_issue12456() leaked dangling process on x86 Tiger 3.x

[Ned Deily]

Ned Deily  added the comment:

Since the macOS Tiger buildbot has been retired, let's close this unless a 
similar failure pops up on another, more modern platform.

--
nosy: +ned.deily
resolution:  -> out of date
stage:  -> resolved
status: open -> closed

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[issue31931] test_concurrent_futures: ProcessPoolSpawnExecutorTest.test_shutdown_race_issue12456() leaked dangling process on x86 Tiger 3.x

[STINNER Victor]

STINNER Victor  added the comment:

Another recent failure on x86 Tiger 3.x:

http://buildbot.python.org/all/#/builders/30/builds/441

test_max_workers_negative 
(test.test_concurrent_futures.ProcessPoolSpawnProcessPoolExecutorTest) ... 
2.63s ok
test_no_stale_references 
(test.test_concurrent_futures.ProcessPoolSpawnProcessPoolExecutorTest) ... 
2.66s ok
test_ressources_gced_in_workers 
(test.test_concurrent_futures.ProcessPoolSpawnProcessPoolExecutorTest) ... 
4.72s ok
test_shutdown_race_issue12456 
(test.test_concurrent_futures.ProcessPoolSpawnProcessPoolExecutorTest) ... 
3.37s Warning -- reap_children() reaped child process 1808
ok
test_submit 
(test.test_concurrent_futures.ProcessPoolSpawnProcessPoolExecutorTest) ... 
2.65s ok
test_submit_keyword 
(test.test_concurrent_futures.ProcessPoolSpawnProcessPoolExecutorTest) ... 
2.67s ok
test_traceback 
(test.test_concurrent_futures.ProcessPoolSpawnProcessPoolExecutorTest) ... 
8.59s ok
test_context_manager_shutdown 
(test.test_concurrent_futures.ProcessPoolSpawnProcessPoolShutdownTest) ... 
0.13s ok
test_del_shutdown 
(test.test_concurrent_futures.ProcessPoolSpawnProcessPoolShutdownTest) ... 
0.11s ok
(...)
--
Ran 150 tests in 262.265s
OK
Warning -- multiprocessing.process._dangling was modified by 
test_concurrent_futures
  Before: <_weakrefset.WeakSet object at 0x1cd1a44>
  After:  <_weakrefset.WeakSet object at 0x1ebc84c>

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[issue31931] test_concurrent_futures: ProcessPoolSpawnExecutorTest.test_shutdown_race_issue12456() leaked dangling process on x86 Tiger 3.x

[STINNER Victor]

STINNER Victor  added the comment:

More context:

test_correct_timeout_exception_msg 
(test.test_concurrent_futures.ProcessPoolSpawnAsCompletedTests) ... 2.66s ok
test_duplicate_futures 
(test.test_concurrent_futures.ProcessPoolSpawnAsCompletedTests) ... 4.64s ok
test_free_reference_yielded_future 
(test.test_concurrent_futures.ProcessPoolSpawnAsCompletedTests) ... 2.69s ok
test_no_timeout (test.test_concurrent_futures.ProcessPoolSpawnAsCompletedTests) 
... 2.80s ok
test_zero_timeout 
(test.test_concurrent_futures.ProcessPoolSpawnAsCompletedTests) ... 4.72s ok
test_free_reference (test.test_concurrent_futures.ProcessPoolSpawnExecutorTest) 
... 9.49s ok
test_killed_child (test.test_concurrent_futures.ProcessPoolSpawnExecutorTest) 
... 2.44s ok
test_map (test.test_concurrent_futures.ProcessPoolSpawnExecutorTest) ... 2.71s 
ok
test_map_chunksize (test.test_concurrent_futures.ProcessPoolSpawnExecutorTest) 
... 2.69s ok
test_map_exception (test.test_concurrent_futures.ProcessPoolSpawnExecutorTest) 
... 2.65s ok
test_map_timeout (test.test_concurrent_futures.ProcessPoolSpawnExecutorTest) 
... 8.65s ok
test_max_workers_negative 
(test.test_concurrent_futures.ProcessPoolSpawnExecutorTest) ... 2.64s ok
test_no_stale_references 
(test.test_concurrent_futures.ProcessPoolSpawnExecutorTest) ... 2.66s ok
test_ressources_gced_in_workers 
(test.test_concurrent_futures.ProcessPoolSpawnExecutorTest) ... 4.75s ok
test_shutdown_race_issue12456 
(test.test_concurrent_futures.ProcessPoolSpawnExecutorTest) ... 7.42s Warning 
-- reap_children() reaped child process 3411
ok
test_submit (test.test_concurrent_futures.ProcessPoolSpawnExecutorTest) ... 
2.97s ok
test_submit_keyword (test.test_concurrent_futures.ProcessPoolSpawnExecutorTest) 
... 3.03s ok
test_traceback (test.test_concurrent_futures.ProcessPoolSpawnExecutorTest) ... 
2.92s ok
test_context_manager_shutdown 
(test.test_concurrent_futures.ProcessPoolSpawnShutdownTest) ... 2.95s ok
test_del_shutdown (test.test_concurrent_futures.ProcessPoolSpawnShutdownTest) 
... 2.74s ok
test_hang_issue12364 
(test.test_concurrent_futures.ProcessPoolSpawnShutdownTest) ... 3.65s ok
test_interpreter_shutdown 
(test.test_concurrent_futures.ProcessPoolSpawnShutdownTest) ... 7.00s ok

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[issue31931] test_concurrent_futures: ProcessPoolSpawnExecutorTest.test_shutdown_race_issue12456() leaked dangling process on x86 Tiger 3.x

[STINNER Victor]

New submission from STINNER Victor :

http://buildbot.python.org/all/#/builders/30/builds/109/steps/4/logs/stdio

0:24:58 load avg: 2.01 [274/407/1] test_concurrent_futures failed (env changed) 
(279 sec)
(...)
test_shutdown_race_issue12456 
(test.test_concurrent_futures.ProcessPoolSpawnExecutorTest) ... 7.42s
Warning -- reap_children() reaped child process 3411
ok
(...)
Warning -- multiprocessing.process._dangling was modified by 
test_concurrent_futures
  Before: <_weakrefset.WeakSet object at 0x269fd54>
  After:  <_weakrefset.WeakSet object at 0x26a64cc>

--
components: Tests
keywords: buildbot
messages: 305468
nosy: haypo
priority: normal
severity: normal
status: open
title: test_concurrent_futures: 
ProcessPoolSpawnExecutorTest.test_shutdown_race_issue12456() leaked dangling 
process on x86 Tiger 3.x
versions: Python 3.7

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