New submission from Kagami Sascha Rosylight <sascha...@outlook.com>:
Similar issue as the previous issue 26903. ``` Python 3.9.7 (tags/v3.9.7:1016ef3, Aug 30 2021, 20:19:38) [MSC v.1929 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> import multiprocessing >>> multiprocessing.cpu_count() 64 >>> multiprocessing.Pool(multiprocessing.cpu_count()) Exception in thread Thread-1: Traceback (most recent call last): <multiprocessing.pool.Pool state=RUN pool_size=64> File "C:\Users\sasch\AppData\Local\Programs\Python\Python39\lib\threading.py", line 973, in _bootstrap_inner >>> self.run() File "C:\Users\sasch\AppData\Local\Programs\Python\Python39\lib\threading.py", line 910, in run self._target(*self._args, **self._kwargs) File "C:\Users\sasch\AppData\Local\Programs\Python\Python39\lib\multiprocessing\pool.py", line 519, in _handle_workers cls._wait_for_updates(current_sentinels, change_notifier) File "C:\Users\sasch\AppData\Local\Programs\Python\Python39\lib\multiprocessing\pool.py", line 499, in _wait_for_updates wait(sentinels, timeout=timeout) File "C:\Users\sasch\AppData\Local\Programs\Python\Python39\lib\multiprocessing\connection.py", line 884, in wait ready_handles = _exhaustive_wait(waithandle_to_obj.keys(), timeout) File "C:\Users\sasch\AppData\Local\Programs\Python\Python39\lib\multiprocessing\connection.py", line 816, in _exhaustive_wait res = _winapi.WaitForMultipleObjects(L, False, timeout) ValueError: need at most 63 handles, got a sequence of length 66 ``` ---------- components: Windows messages: 400832 nosy: paul.moore, saschanaz, steve.dower, tim.golden, zach.ware priority: normal severity: normal status: open title: multiprocessing.Pool(64) crashes on Windows type: behavior versions: Python 3.9 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue45077> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com