test_asyncio.test_subprocess leaked dangling threads on PPC64LE Fedora Stable 3.x:

[vstinner]

The machine was very slow (very busy) when the test failed: load avg: 21.37. Also, I noticed that this buildbot builder is now.

PPC64LE Fedora Stable 3.x:

0:11:53 load avg: 21.37 [383/467/1] test.test_asyncio.test_subprocess failed (env changed) (40.0 sec) -- running (8): test_subprocess (1 min 6 sec), test_capi (47.1 sec), test_math (57.5 sec), test_io (46.4 sec), test.test_gdb.test_cfunction (1 min 3 sec), test_weakref (1 min 17 sec), test_unparse (2 min 11 sec), test.test_asyncio.test_tasks (38.9 sec)

(...)

test_close_kill_running (test.test_asyncio.test_subprocess.SubprocessThreadedWatcherTests.test_close_kill_running) ... ok
test_communicate (test.test_asyncio.test_subprocess.SubprocessThreadedWatcherTests.test_communicate) ... ok
test_communicate_ignore_broken_pipe (test.test_asyncio.test_subprocess.SubprocessThreadedWatcherTests.test_communicate_ignore_broken_pipe) ... ok
test_communicate_none_input (test.test_asyncio.test_subprocess.SubprocessThreadedWatcherTests.test_communicate_none_input) ... ok
test_create_subprocess_env_exec (test.test_asyncio.test_subprocess.SubprocessThreadedWatcherTests.test_create_subprocess_env_exec) ... ok
test_create_subprocess_env_shell (test.test_asyncio.test_subprocess.SubprocessThreadedWatcherTests.test_create_subprocess_env_shell) ... ok
test_create_subprocess_exec_text_mode_fails (test.test_asyncio.test_subprocess.SubprocessThreadedWatcherTests.test_create_subprocess_exec_text_mode_fails) ... ok
test_create_subprocess_exec_with_path (test.test_asyncio.test_subprocess.SubprocessThreadedWatcherTests.test_create_subprocess_exec_with_path) ... ok
test_create_subprocess_shell_text_mode_fails (test.test_asyncio.test_subprocess.SubprocessThreadedWatcherTests.test_create_subprocess_shell_text_mode_fails) ... ok
test_devnull_error (test.test_asyncio.test_subprocess.SubprocessThreadedWatcherTests.test_devnull_error) ... ok
test_devnull_input (test.test_asyncio.test_subprocess.SubprocessThreadedWatcherTests.test_devnull_input) ... Warning -- threading_cleanup() failed to cleanup 1 threads (count: 1, dangling: 2)
Warning -- Dangling thread: <_MainThread(MainThread, started 140735686786240)>
Warning -- Dangling thread: <Thread(waitpid-0, started daemon 140735332413728)>
ok

test_asyncio.test_subprocess passed when re-run in verbose mode.

build: https://buildbot.python.org/all/#/builders/90/builds/3855

Linked PRs

• gh-110205: Fix asyncio ThreadedChildWatcher._join_threads() #110790
• gh-110205: Fix asyncio ThreadedChildWatcher._join_threads() #110884
• [3.12] gh-110205: Fix asyncio ThreadedChildWatcher._join_threads() (GH-110884) #111412
• [3.11] gh-110205: Fix asyncio ThreadedChildWatcher._join_threads() (GH-110884) #111413

[gvanrossum]

Sorry, this is not fixed. The PR attempting to fix it was not merged.

[vstinner]

Sorry, this is not fixed. The PR attempting to fix it was not merged.

I'm not interested to fix this issue anymore. If you consider that it's important issue, you can fix it. I close again the issue and unsubscribe from the issue.