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test_multiprocessing_fork: test_del_pool() leaks dangling threads and processes on AMD64 FreeBSD CURRENT Shared 3.x #79594

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vstinner opened this issue Dec 5, 2018 · 2 comments
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test_multiprocessing_fork: test_del_pool() leaks dangling threads and processes on AMD64 FreeBSD CURRENT Shared 3.x #79594

vstinner opened this issue Dec 5, 2018 · 2 comments
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3.8 only security fixes tests Tests in the Lib/test dir

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@vstinner
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vstinner commented Dec 5, 2018

BPO 35413
Nosy @vstinner, @koobs

Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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GitHub fields:

assignee = None
closed_at = <Date 2018-12-12.16:04:20.645>
created_at = <Date 2018-12-05.01:35:56.255>
labels = ['3.8', 'tests']
title = 'test_multiprocessing_fork: test_del_pool() leaks dangling threads and processes on AMD64 FreeBSD CURRENT Shared 3.x'
updated_at = <Date 2018-12-12.16:04:20.643>
user = 'https://github.com/vstinner'

bugs.python.org fields:

activity = <Date 2018-12-12.16:04:20.643>
actor = 'vstinner'
assignee = 'none'
closed = True
closed_date = <Date 2018-12-12.16:04:20.645>
closer = 'vstinner'
components = ['Tests']
creation = <Date 2018-12-05.01:35:56.255>
creator = 'vstinner'
dependencies = []
files = []
hgrepos = []
issue_num = 35413
keywords = []
message_count = 2.0
messages = ['331086', '331704']
nosy_count = 2.0
nosy_names = ['vstinner', 'koobs']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue35413'
versions = ['Python 3.8']
@vstinner
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vstinner commented Dec 5, 2018

Previous issue fixing such bug: bpo-33676.

https://buildbot.python.org/all/#/builders/168/builds/332

test_empty_string (test.test_multiprocessing_fork.WithThreadsTestPoll) ... ok
test_strings (test.test_multiprocessing_fork.WithThreadsTestPoll) ... ok
test_apply (test.test_multiprocessing_fork.WithThreadsTestPool) ... ok
test_async (test.test_multiprocessing_fork.WithThreadsTestPool) ... ok
test_async_timeout (test.test_multiprocessing_fork.WithThreadsTestPool) ... ok
test_context (test.test_multiprocessing_fork.WithThreadsTestPool) ... ok
test_del_pool (test.test_multiprocessing_fork.WithThreadsTestPool) ... Warning -- threading_cleanup() failed to cleanup 1 threads (count: 8, dangling: 9)
Dangling thread: <Thread(Thread-144, started daemon 34400207360)>
Dangling thread: <_MainThread(MainThread, started 34370793472)>
Dangling thread: <DummyProcess(Thread-146, started daemon 34400142336)>
Dangling thread: <DummyProcess(Thread-142, started daemon 34400199680)>
Dangling thread: <DummyProcess(Thread-140, started daemon 34400198400)>
Dangling thread: <DummyProcess(Thread-139, started daemon 34400200960)>
Dangling thread: <Thread(Thread-143, started daemon 34400143616)>
Dangling thread: <Thread(Thread-145, started daemon 34400204800)>
Dangling thread: <DummyProcess(Thread-141, started daemon 34400208640)>
ok
test_empty_iterable (test.test_multiprocessing_fork.WithThreadsTestPool) ... ok
test_imap (test.test_multiprocessing_fork.WithThreadsTestPool) ... ok
test_imap_handle_iterable_exception (test.test_multiprocessing_fork.WithThreadsTestPool) ... ok
test_imap_unordered (test.test_multiprocessing_fork.WithThreadsTestPool) ... ok

@vstinner vstinner added 3.8 only security fixes tests Tests in the Lib/test dir labels Dec 5, 2018
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I reverted the change which addd test_del_pool():
https://bugs.python.org/issue34172#msg331198

So this issue can be fixed.

@ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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