[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

STINNER Victor added the comment: Even if the code isn't perfect, I didn't see the failure recently. So I close the bug again. -- resolution: -> fixed status: open -> closed ___ Python tracker

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

STINNER Victor added the comment: Note for myself: the commit 127bd9bfd591c8ec1a97eb7f4037c8b884eef973, fix for bpo-34042 has no impact on this issue since this issue is about memory blocks and not references. -- ___ Python tracker

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

STINNER Victor added the comment: Ok ok, let me be honest with myself, my *workaround* change is not reliable :-) -- resolution: fixed -> status: closed -> open ___ Python tracker

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

Pablo Galindo Salgado added the comment: We have some similar failures on the x86 Gentoo Refleaks 3.7 buildbots: http://buildbot.python.org/all/#/builders/114/builds/157/steps/4/logs/stdio http://buildbot.python.org/all/#/builders/114/builds/155/steps/4/logs/stdio

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

STINNER Victor added the comment: bpo-33984 has been marked as a duplicate of this issue: "test_multiprocessing_forkserver leaked [1, 2, 1] memory blocks on x86 Gentoo Refleaks 3.x". Sadly, my commit 23401fb960bb94e6ea62d2999527968d53d3fc65 is not perfect, the test still fails when the

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

miss-islington added the comment: New changeset 3bd9d3b934eb8b27553f19a7ab1c97f95745c68f by Miss Islington (bot) in branch '3.6': bpo-33735: Fix test_multiprocessing random failure (GH-8059) https://github.com/python/cpython/commit/3bd9d3b934eb8b27553f19a7ab1c97f95745c68f --

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

STINNER Victor added the comment: New changeset 53fafafa340e292a1c9e4aacf5860999613c2b36 by Victor Stinner in branch '2.7': bpo-33735: Fix test_multiprocessing random failure (GH-8059) (GH-8061) https://github.com/python/cpython/commit/53fafafa340e292a1c9e4aacf5860999613c2b36 --

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

miss-islington added the comment: New changeset 42b2f84a85fe3334c5d8098cf76dfa727b348c4f by Miss Islington (bot) in branch '3.7': bpo-33735: Fix test_multiprocessing random failure (GH-8059) https://github.com/python/cpython/commit/42b2f84a85fe3334c5d8098cf76dfa727b348c4f -- nosy:

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

Change by STINNER Victor : -- pull_requests: +7670 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

Change by miss-islington : -- pull_requests: +7671 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

Change by miss-islington : -- pull_requests: +7669 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

STINNER Victor added the comment: New changeset 23401fb960bb94e6ea62d2999527968d53d3fc65 by Victor Stinner in branch 'master': bpo-33735: Fix test_multiprocessing random failure (GH-8059) https://github.com/python/cpython/commit/23401fb960bb94e6ea62d2999527968d53d3fc65 --

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

STINNER Victor added the comment: > It failed for the first time on Ubuntu and then was successful for all the > rest of 5-6 runs. The bug is random. But the problem is that sometimes, it fails. It must never fail, otherwise the buildbot fails randomly. The Gentoo Refleak buildbot runs

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

Change by STINNER Victor : -- keywords: +patch pull_requests: +7668 stage: -> patch review ___ Python tracker ___ ___

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

Karthikeyan Singaravelan added the comment: It failed for the first time on Ubuntu and then was successful for all the rest of 5-6 runs. I don't know why for the failure run it has load avg as 0.00 and how to get to this stage. # Shell session ➜ cpython git:(master) uname -a Linux

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

STINNER Victor added the comment: > test_multiprocessing_spawn leaked [4, 5, 1, 5, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, > 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] memory blocks, sum=18 Sorry, I forgot to mention that I modified libregrtest to get this output: diff --git

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

STINNER Victor added the comment: It doesn't look like a real leak, but more a cache which takes multiple iterations to be fully filled. pydev@stormageddon ~/cpython $ ./python -m test test_multiprocessing_spawn -m test.test_multiprocessing_spawn.WithProcessesTestPool.test_imap_unordered -R

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

STINNER Victor added the comment: I reproduced the issue on the Gentoo Refleak buildbot and I succeeded to bisect up to a single test: test_imap_unordered(). pydev@stormageddon ~/cpython $ ./python -m test test_multiprocessing_spawn -m

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

STINNER Victor added the comment: I also created bpo-33966: "test_multiprocessing_spawn.WithProcessesTestPool.test_traceback() leaks 4 handles on Windows". -- ___ Python tracker

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

STINNER Victor added the comment: I just created bpo-33929: "test_multiprocessing_spawn: WithProcessesTestProcess.test_many_processes() leaks 5 handles on Windows". See also my PR 7827. -- ___ Python tracker

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

STINNER Victor added the comment: > http://buildbot.python.org/all/#/builders/132/builds/154 That's the AMD64 Windows8.1 Refleaks 3.7 buildbot. > bpo-33853 has been marked as a duplicate this bug. Copy of Pablo's message: The test `test_multiprocessing_spawn` is leaking memory according to

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

STINNER Victor added the comment: bpo-33853 has been marked as a duplicate this bug. -- ___ Python tracker ___ ___

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

STINNER Victor added the comment: When running "python -m test -R 2:3 test_multiprocessing_forkserver" on Windows, I saw some warnings about dangling threads. It may explain this issue. -- ___ Python tracker

[issue33735] test_multiprocessing_spawn leaked [1, 2, 1] memory blocks on AMD64 Windows8.1 Refleaks 3.7

New submission from STINNER Victor : http://buildbot.python.org/all/#/builders/132/builds/154 test_multiprocessing_spawn leaked [1, 2, 1] memory blocks, sum=4 -- components: Tests, Windows messages: 318425 nosy: paul.moore, steve.dower, tim.golden, vstinner, zach.ware priority: normal