[New-bugs-announce] [issue40410] test_multiprocessing_forktest_terminate() timed out after 15 min on s390x Fedora LTO + PGO 3.x

[STINNER Victor]

New submission from STINNER Victor <vstinner at python.org>:

s390x Fedora LTO + PGO 3.x:
https://buildbot.python.org/all/#/builders/460/builds/364

0:15:21 load avg: 0.00 [423/423/1] test_multiprocessing_fork crashed (Exit code 1)
Timeout (0:15:00)!
Thread 0x000003ff83dff910 (most recent call first):
  File "/home/dje/cpython-buildarea/3.x.edelsohn-fedora-z.lto-pgo/build/Lib/multiprocessing/connection.py", line 384 in _recv
  File "/home/dje/cpython-buildarea/3.x.edelsohn-fedora-z.lto-pgo/build/Lib/multiprocessing/connection.py", line 419 in _recv_bytes
  File "/home/dje/cpython-buildarea/3.x.edelsohn-fedora-z.lto-pgo/build/Lib/multiprocessing/connection.py", line 255 in recv
  File "/home/dje/cpython-buildarea/3.x.edelsohn-fedora-z.lto-pgo/build/Lib/multiprocessing/pool.py", line 600 in _handle_results
  File "/home/dje/cpython-buildarea/3.x.edelsohn-fedora-z.lto-pgo/build/Lib/threading.py", line 888 in run
  File "/home/dje/cpython-buildarea/3.x.edelsohn-fedora-z.lto-pgo/build/Lib/threading.py", line 950 in _bootstrap_inner
  File "/home/dje/cpython-buildarea/3.x.edelsohn-fedora-z.lto-pgo/build/Lib/threading.py", line 908 in _bootstrap

Thread 0x000003ff976f8b20 (most recent call first):
  File "/home/dje/cpython-buildarea/3.x.edelsohn-fedora-z.lto-pgo/build/Lib/multiprocessing/pool.py", line 673 in _help_stuff_finish
  File "/home/dje/cpython-buildarea/3.x.edelsohn-fedora-z.lto-pgo/build/Lib/multiprocessing/pool.py", line 693 in _terminate_pool
  File "/home/dje/cpython-buildarea/3.x.edelsohn-fedora-z.lto-pgo/build/Lib/multiprocessing/util.py", line 224 in __call__
  File "/home/dje/cpython-buildarea/3.x.edelsohn-fedora-z.lto-pgo/build/Lib/multiprocessing/pool.py", line 655 in terminate
  File "/home/dje/cpython-buildarea/3.x.edelsohn-fedora-z.lto-pgo/build/Lib/test/_test_multiprocessing.py", line 2546 in test_terminate
  (...)

----------
components: Tests
messages: 367457
nosy: vstinner
priority: normal
severity: normal
status: open
title: test_multiprocessing_forktest_terminate() timed out after 15 min on s390x Fedora LTO + PGO 3.x
versions: Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40410>
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