[New-bugs-announce] [issue38276] test_asyncio: test_cancel_make_subprocess_transport_exec() failed on RHEL7 LTO + PGO 3.x

[STINNER Victor]

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

test_asyncio failed once, but then passed when re-run in verbose mode.

RHEL7 LTO + PGO 3.x:
https://buildbot.python.org/all/#/builders/258/builds/31

running: test_asyncio (9 min 21 sec)
running: test_asyncio (9 min 51 sec)
running: test_asyncio (10 min 21 sec)
running: test_asyncio (10 min 51 sec)
running: test_asyncio (11 min 21 sec)
running: test_asyncio (11 min 51 sec)
running: test_asyncio (12 min 21 sec)
running: test_asyncio (12 min 51 sec)
running: test_asyncio (13 min 21 sec)
running: test_asyncio (13 min 51 sec)
running: test_asyncio (14 min 21 sec)
running: test_asyncio (14 min 51 sec)
0:15:57 load avg: 0.01 [419/419/1] test_asyncio crashed (Exit code 1)
Timeout (0:15:00)!
Thread 0x00007f76b16ad740 (most recent call first):
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/selectors.py", line 468 in select
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/asyncio/base_events.py", line 1837 in _run_once
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/asyncio/base_events.py", line 589 in run_forever
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/asyncio/base_events.py", line 621 in run_until_complete
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/test/test_asyncio/test_subprocess.py", line 440 in test_cancel_make_subprocess_transport_exec
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/unittest/case.py", line 616 in _callTestMethod
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/unittest/case.py", line 659 in run
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/unittest/case.py", line 719 in __call__
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/unittest/suite.py", line 122 in run
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/unittest/suite.py", line 84 in __call__
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/unittest/suite.py", line 122 in run
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/unittest/suite.py", line 84 in __call__
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/unittest/suite.py", line 122 in run
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/unittest/suite.py", line 84 in __call__
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/unittest/suite.py", line 122 in run
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/unittest/suite.py", line 84 in __call__
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/unittest/suite.py", line 122 in run
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/unittest/suite.py", line 84 in __call__
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/unittest/runner.py", line 176 in run
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/test/support/__init__.py", line 1996 in _run_suite
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/test/support/__init__.py", line 2092 in run_unittest
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/test/libregrtest/runtest.py", line 209 in _test_module
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/test/libregrtest/runtest.py", line 234 in _runtest_inner2
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/test/libregrtest/runtest.py", line 270 in _runtest_inner
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/test/libregrtest/runtest.py", line 140 in _runtest
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/test/libregrtest/runtest.py", line 193 in runtest
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/test/libregrtest/runtest_mp.py", line 67 in run_tests_worker
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/test/libregrtest/main.py", line 651 in _main
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/test/libregrtest/main.py", line 631 in main
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/test/libregrtest/main.py", line 704 in main
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/test/regrtest.py", line 43 in _main
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/test/regrtest.py", line 47 in <module>
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/runpy.py", line 85 in _run_code
  File "/home/buildbot/buildarea/3.x.cstratak-RHEL7-x86_64.lto-pgo/build/Lib/runpy.py", line 192 in _run_module_as_main

----------
messages: 353192
nosy: vstinner
priority: normal
severity: normal
status: open
title: test_asyncio: test_cancel_make_subprocess_transport_exec() failed on RHEL7 LTO + PGO 3.x

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38276>
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