[issue40500] test_multiprocessing_fork leaks processes on PPC64LE RHEL8 LTO + PGO 3.x

[STINNER Victor]

STINNER Victor  added the comment:

PPC64LE RHEL8 LTO + PGO 3.x:
https://buildbot.python.org/all/#/builders/450/builds/361

0:02:28 load avg: 6.47 [398/423/1] test_multiprocessing_spawn failed (env 
changed) (2 min 3 sec) -- running: test_asyncio (51.1 sec), test_peg_generator 
(47.7 sec), test_concurrent_futures (53.3 sec)
Warning -- multiprocessing.Manager still has [, ] active children 
after 5.115746586991008 seconds
Warning -- multiprocessing.Manager still has [, ] active children 
after 5.11747344958 seconds
Warning -- multiprocessing.Manager still has [, ] active children 
after 5.116073776007397 seconds

--

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[issue40500] test_multiprocessing_fork leaks processes on PPC64LE RHEL8 LTO + PGO 3.x

[STINNER Victor]

STINNER Victor  added the comment:

Another example "PPC64LE RHEL8 LTO 3.x":
https://buildbot.python.org/all/#/builders/356/builds/347

0:02:49 load avg: 9.54 [415/423/1] test_multiprocessing_spawn failed (env 
changed) (2 min 15 sec) -- running: test_concurrent_futures (58.1 sec), 
test_peg_generator (1 min 39 sec), test_gdb (47.8 sec)
Warning -- multiprocessing.Manager still has [, ] active children 
after 5.1163996559916995 seconds
Warning -- Dangling processes: {}
Warning -- multiprocessing.Manager still has [, ] active children 
after 5.115814491000492 seconds

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[issue40500] test_multiprocessing_fork leaks processes on PPC64LE RHEL8 LTO + PGO 3.x

[STINNER Victor]

New submission from STINNER Victor :

PPC64LE RHEL8 LTO + PGO 3.x:
https://buildbot.python.org/all/#/builders/450/builds/313

0:01:22 load avg: 7.01 [242/423/1] test_multiprocessing_fork failed (env 
changed) (1 min 17 sec) -- running: test_concurrent_futures (1 min 3 sec), 
test_multiprocessing_forkserver (1 min 19 sec)

Warning -- multiprocessing.Manager still has [, ] active children 
after 5.1161000469874125 seconds

Warning -- Dangling processes: {}

Warning -- multiprocessing.Manager still has [, ] active children after 
5.116447829990648 seconds

test__all__ (test.test_multiprocessing_fork.MiscTestCase) ... ok
test_answer_challenge_auth_failure (test.test_multiprocessing_fork.OtherTest) 
... ok
test_deliver_challenge_auth_failure (test.test_multiprocessing_fork.OtherTest) 
... ok
(...)

--
components: Tests
messages: 368043
nosy: pitrou, tomMoral, vstinner
priority: normal
severity: normal
status: open
title: test_multiprocessing_fork leaks processes on PPC64LE RHEL8 LTO + PGO 3.x
versions: Python 3.9

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