classification
Title: test_basic_script_no_suffix() of test_multiprocessing_main_handling timeout after 20 min on Travis CI
Type: Stage: resolved
Components: Tests Versions: Python 3.7
process
Status: closed Resolution: fixed
Dependencies: Superseder:
Assigned To: Nosy List: davin, pitrou, vstinner
Priority: normal Keywords:

Created on 2017-06-13 06:46 by vstinner, last changed 2017-06-13 08:10 by vstinner. This issue is now closed.

Pull Requests
URL Status Linked Edit
PR 2139 merged pitrou, 2017-06-13 07:43
Messages (7)
msg295854 - (view) Author: STINNER Victor (vstinner) * (Python committer) Date: 2017-06-13 06:46
https://travis-ci.org/python/cpython/jobs/242108490#L2211


0:22:46 load avg: 62.38 [406/406/1] test_multiprocessing_main_handling crashed (Exit code 1)

Timeout (0:20:00)!

Thread 0x00002b175d341400 (most recent call first):

  File "/home/travis/build/python/cpython/Lib/selectors.py", line 415 in select

  File "/home/travis/build/python/cpython/Lib/subprocess.py", line 1488 in _communicate

  File "/home/travis/build/python/cpython/Lib/subprocess.py", line 840 in communicate

  File "/home/travis/build/python/cpython/Lib/test/support/script_helper.py", line 126 in run_python_until_end

  File "/home/travis/build/python/cpython/Lib/test/support/script_helper.py", line 135 in _assert_python

  File "/home/travis/build/python/cpython/Lib/test/support/script_helper.py", line 151 in assert_python_ok

  File "/home/travis/build/python/cpython/Lib/test/test_multiprocessing_main_handling.py", line 157 in _check_script

  File "/home/travis/build/python/cpython/Lib/test/test_multiprocessing_main_handling.py", line 169 in test_basic_script_no_suffix

  File "/home/travis/build/python/cpython/Lib/unittest/case.py", line 605 in run

  File "/home/travis/build/python/cpython/Lib/unittest/case.py", line 653 in __call__

  File "/home/travis/build/python/cpython/Lib/unittest/suite.py", line 122 in run

  File "/home/travis/build/python/cpython/Lib/unittest/suite.py", line 84 in __call__

  File "/home/travis/build/python/cpython/Lib/unittest/suite.py", line 122 in run

  File "/home/travis/build/python/cpython/Lib/unittest/suite.py", line 84 in __call__

  File "/home/travis/build/python/cpython/Lib/unittest/suite.py", line 122 in run

  File "/home/travis/build/python/cpython/Lib/unittest/suite.py", line 84 in __call__

  File "/home/travis/build/python/cpython/Lib/unittest/runner.py", line 176 in run

  File "/home/travis/build/python/cpython/Lib/test/support/__init__.py", line 1896 in _run_suite

  File "/home/travis/build/python/cpython/Lib/test/support/__init__.py", line 1936 in run_unittest

  File "/home/travis/build/python/cpython/Lib/test/libregrtest/runtest.py", line 164 in test_runner

  File "/home/travis/build/python/cpython/Lib/test/libregrtest/runtest.py", line 165 in runtest_inner

  File "/home/travis/build/python/cpython/Lib/test/libregrtest/runtest.py", line 119 in runtest

  File "/home/travis/build/python/cpython/Lib/test/libregrtest/runtest_mp.py", line 71 in run_tests_slave

  File "/home/travis/build/python/cpython/Lib/test/libregrtest/main.py", line 481 in _main

  File "/home/travis/build/python/cpython/Lib/test/libregrtest/main.py", line 474 in main

  File "/home/travis/build/python/cpython/Lib/test/libregrtest/main.py", line 538 in main

  File "/home/travis/build/python/cpython/Lib/test/regrtest.py", line 46 in _main

  File "/home/travis/build/python/cpython/Lib/test/regrtest.py", line 50 in <module>

  File "/home/travis/build/python/cpython/Lib/runpy.py", line 85 in _run_code

  File "/home/travis/build/python/cpython/Lib/runpy.py", line 193 in _run_module_as_main
msg295856 - (view) Author: Antoine Pitrou (pitrou) * (Python committer) Date: 2017-06-13 07:40
Yes, this is https://github.com/python/cpython/pull/2139
msg295857 - (view) Author: Antoine Pitrou (pitrou) * (Python committer) Date: 2017-06-13 07:46
New changeset 2b5cc5ebaff41445200753f1a69fd4e6a9475a1e by Antoine Pitrou in branch 'master':
bpo-30643: Fix race condition in signal wakeup in forkserver (followup to PR #1989) (#2139)
https://github.com/python/cpython/commit/2b5cc5ebaff41445200753f1a69fd4e6a9475a1e
msg295858 - (view) Author: Antoine Pitrou (pitrou) * (Python committer) Date: 2017-06-13 07:46
Should be fixed in PR #2139. Please reopen if not.
msg295860 - (view) Author: STINNER Victor (vstinner) * (Python committer) Date: 2017-06-13 07:54
> Should be fixed in PR #2139. Please reopen if not.

Thank you Antoine :-)

Hum, how do you feel about backporting recent Lib/multiprocessing/forkserver.py enhancements from master to 3.6 or even to 3.5? Do you consider them as bugfixes or more "enhancements"?

(If you want to backport, please wait after the 3.6.2 release to not stress our release manager, Ned Deily ;-))
msg295861 - (view) Author: Antoine Pitrou (pitrou) * (Python committer) Date: 2017-06-13 08:08
Maintaining multiprocessing is quite delicate and I don't want to risk regressions in bugfix releases.  If a bug is really annoying I would backport the fix, otherwise I'd rather abstain.
msg295862 - (view) Author: STINNER Victor (vstinner) * (Python committer) Date: 2017-06-13 08:10
Anointe: "Maintaining multiprocessing is quite delicate and I don't want to risk regressions in bugfix releases.  If a bug is really annoying I would backport the fix, otherwise I'd rather abstain."

Honesty, same for me here :-D So ok, no backport yet ;-)
History
Date User Action Args
2017-06-13 08:10:17vstinnersetmessages: + msg295862
2017-06-13 08:08:52pitrousetmessages: + msg295861
2017-06-13 07:54:32vstinnersetmessages: + msg295860
2017-06-13 07:46:47pitrousetstatus: open -> closed
resolution: fixed
stage: resolved
2017-06-13 07:46:28pitrousetmessages: + msg295858
2017-06-13 07:46:09pitrousetmessages: + msg295857
2017-06-13 07:43:01pitrousetpull_requests: + pull_request2199
2017-06-13 07:40:14pitrousetmessages: + msg295856
2017-06-13 06:46:05vstinnercreate