Issue33676
Created on 2018-05-28 23:03 by vstinner, last changed 2022-04-11 14:59 by admin. This issue is now closed.
| Files | ||||
|---|---|---|---|---|
| File name | Uploaded | Description | Edit | |
| mp_debug.patch | vstinner, 2018-11-27 23:38 | |||
| Pull Requests | |||
|---|---|---|---|
| URL | Status | Linked | Edit |
| PR 10755 | merged | vstinner, 2018-11-27 23:28 | |
| PR 10756 | merged | miss-islington, 2018-11-28 00:14 | |
| PR 10757 | merged | miss-islington, 2018-11-28 00:14 | |
| Messages (6) | |||
|---|---|---|---|
| msg317948 - (view) | Author: STINNER Victor (vstinner) *  |
Date: 2018-05-28 23:03 | |
AMD64 FreeBSD 10.x Shared 3.7: http://buildbot.python.org/all/#/builders/124/builds/327 == CPU count: 2 Run tests in parallel using 4 child processes (...) 0:02:09 load avg: 3.70 [138/415/1] test_multiprocessing_fork failed (env changed) (108 sec) -- running: test_concurrent_futures (124 sec) (...) test_starmap (test.test_multiprocessing_fork.WithThreadsTestPool) ... ok test_starmap_async (test.test_multiprocessing_fork.WithThreadsTestPool) ... ok test_terminate (test.test_multiprocessing_fork.WithThreadsTestPool) ... ok test_traceback (test.test_multiprocessing_fork.WithThreadsTestPool) ... ok test_wrapped_exception (test.test_multiprocessing_fork.WithThreadsTestPool) ... ok Warning -- Dangling threads: {<DummyProcess(Thread-158, started daemon 34498362368)>} |
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| msg330560 - (view) | Author: STINNER Victor (vstinner) * |
Date: 2018-11-27 23:38 | |
The bug is still alive: https://buildbot.python.org/all/#/builders/168/builds/294 I found a bug using attached mp_debug.patch. I wrote PR 10755 to try to fix it. I have access to FreeBSD CURRENT buildbot. I only reproduced the bug once using: ./python -m test -v test_multiprocessing_fork -m WithThreadsTestPool --fail-env-changed -F I ran this command 4 times in parallel in 4 terminals, but I failed to reliably reproduce the bug. Even if I stress the computer using "./python -m test -j4 -r" run in different shell, or using my "system_load.py 3" script, I fail to trigger the bug. |
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| msg330565 - (view) | Author: STINNER Victor (vstinner) * |
Date: 2018-11-28 00:14 | |
New changeset b7278736b3ae158a7738057e3045bc767ced019e by Victor Stinner in branch 'master': bpo-33676: Fix dangling thread in _test_multiprocessing (GH-10755) https://github.com/python/cpython/commit/b7278736b3ae158a7738057e3045bc767ced019e |
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| msg330566 - (view) | Author: miss-islington (miss-islington) | Date: 2018-11-28 00:30 | |
New changeset 80db40cdd6a58c9d66694a43ee9a7c06ab958373 by Miss Islington (bot) in branch '3.7': bpo-33676: Fix dangling thread in _test_multiprocessing (GH-10755) https://github.com/python/cpython/commit/80db40cdd6a58c9d66694a43ee9a7c06ab958373 |
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| msg330567 - (view) | Author: miss-islington (miss-islington) | Date: 2018-11-28 00:37 | |
New changeset dd5293871703e6a12ffdde14eeaa86a73b7b0d99 by Miss Islington (bot) in branch '3.6': bpo-33676: Fix dangling thread in _test_multiprocessing (GH-10755) https://github.com/python/cpython/commit/dd5293871703e6a12ffdde14eeaa86a73b7b0d99 |
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| msg330568 - (view) | Author: STINNER Victor (vstinner) * |
Date: 2018-11-28 00:44 | |
I *hope* that it will be enough :-/ |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:59:01 | admin | set | github: 77857 |
| 2018-11-28 00:44:38 | vstinner | set | status: open -> closed versions: + Python 3.6, Python 3.8 messages: + msg330568 resolution: fixed |
| 2018-11-28 00:37:28 | miss-islington | set | messages: + msg330567 |
| 2018-11-28 00:30:37 | miss-islington | set | nosy:
+ miss-islington messages: + msg330566 |
| 2018-11-28 00:14:53 | miss-islington | set | pull_requests: + pull_request10005 |
| 2018-11-28 00:14:44 | miss-islington | set | stage: resolved -> patch review pull_requests: + pull_request10004 |
| 2018-11-28 00:14:36 | vstinner | set | messages: + msg330565 |
| 2018-11-27 23:38:37 | vstinner | set | status: closed -> open files: + mp_debug.patch messages: + msg330560 keywords:
+ patch |
| 2018-11-27 23:28:29 | vstinner | set | pull_requests: + pull_request10003 |
| 2018-09-19 23:57:36 | vstinner | set | status: open -> closed resolution: out of date stage: resolved |
| 2018-05-28 23:03:48 | vstinner | create | |