[issue38546] test_concurrent_futures: test_interpreter_shutdown() warning "reap_children() reaped child process" on AMD64 RHEL7 3.x

STINNER Victor added the comment: New warning on AMD64 RHEL8 LTO + PGO 3.x: https://buildbot.python.org/all/#/builders/284/builds/171 ... test_killed_child (test.test_concurrent_futures.ProcessPoolSpawnProcessPoolExecutorTest) ... 0.26s ok test_map

[issue38546] test_concurrent_futures: test_interpreter_shutdown() warning "reap_children() reaped child process" on AMD64 RHEL7 3.x

STINNER Victor added the comment: The system load was at 10.02 when the bug occurred: > https://buildbot.python.org/all/#/builders/254/builds/162 ... 0:04:11 load avg: 10.02 [230/419] test_pkgutil passed -- running: test_io (2 min 46 sec), test_capi (1 min 12 sec), test_concurrent_futures

[issue38546] test_concurrent_futures: test_interpreter_shutdown() warning "reap_children() reaped child process" on AMD64 RHEL7 3.x

STINNER Victor added the comment: I ran "./python -m test --fail-env-changed -w -j50 -F test_concurrent_futures" on my laptop for 5 minutes: system load of 220,57 with a peak of 403 processes... but I failed to reproduce the issue :-( -- ___

[issue38546] test_concurrent_futures: test_interpreter_shutdown() warning "reap_children() reaped child process" on AMD64 RHEL7 3.x

STINNER Victor added the comment: It looks similar to bpo-38448: "test_concurrent_futures: reap_children() reaped child process 26487 on AMD64 RHEL8 Refleaks 3.x" -- ___ Python tracker

[issue38546] test_concurrent_futures: test_interpreter_shutdown() warning "reap_children() reaped child process" on AMD64 RHEL7 3.x

New submission from STINNER Victor : https://buildbot.python.org/all/#/builders/254/builds/162 test_no_stale_references (test.test_concurrent_futures.ProcessPoolSpawnProcessPoolExecutorTest) ... 0.56s ok test_ressources_gced_in_workers