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Title: gh-88110: clear concurrent.futures.thread._threads_queues after fork by marmarek · Pull Request #101940 · python/cpython · GitHub

Open Graph Title: gh-88110: clear concurrent.futures.thread._threads_queues after fork by marmarek · Pull Request #101940 · python/cpython

X Title: gh-88110: clear concurrent.futures.thread._threads_queues after fork by marmarek · Pull Request #101940 · python/cpython

Description: Threads are gone after fork, so clear the queues too. Otherwise the child process (here created via multiprocessing.Process) crashes on interpreter exit with: Traceback (most recent call last): File "/usr/lib64/python3.11/multiprocessing/popen_fork.py", line 72, in _launch code = process_obj._bootstrap(parent_sentinel=child_r) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib64/python3.11/multiprocessing/process.py", line 332, in _bootstrap threading._shutdown() File "/usr/lib64/python3.11/threading.py", line 1561, in _shutdown atexit_call() File "/usr/lib64/python3.11/concurrent/futures/thread.py", line 31, in _python_exit t.join() File "/usr/lib64/python3.11/threading.py", line 1109, in join raise RuntimeError("cannot join current thread") RuntimeError: cannot join current thread Issue: gh-88110

Open Graph Description: Threads are gone after fork, so clear the queues too. Otherwise the child process (here created via multiprocessing.Process) crashes on interpreter exit with: Traceback (most recent call last): F...

X Description: Threads are gone after fork, so clear the queues too. Otherwise the child process (here created via multiprocessing.Process) crashes on interpreter exit with: Traceback (most recent call last): F...

Opengraph URL: https://github.com/python/cpython/pull/101940

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gh-88110: clear concurrent.futures.thread._threads_queues after fork https://github.com/python/cpython/pull/101940/files#top
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cf472e1 gh-88110: clear concurrent.futures.thread._threads_queues after fork marmarek Feb 15, 2023 https://github.com/python/cpython/pull/101940/commits/cf472e1ec860e278b10e9aee53d9e56968c85bed
b5eb655 Add NEWS entry marmarek Feb 15, 2023 https://github.com/python/cpython/pull/101940/commits/b5eb6553245884bc5cd9f79fe6c5ec5e7e9acd87
a5f7a66 Merge branch 'main' into bug88110 hauntsaninja Feb 20, 2023 https://github.com/python/cpython/pull/101940/commits/a5f7a660fcd6c8434045e11bd223bb1869a0d4b8
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