Attachment 10851 Details for Bug 50050 – `multiprocessing.Manager` crashes

`multiprocessing.Manager` crashes

m.txt (text/plain), 15.50 KB, created by Florian Best on 2021-10-29 11:38:06 CEST

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Creator: Florian Best

Created: 2021-10-29 11:38:06 CEST

Size: 15.50 KB

patch

obsolete

>28.10.21 05:20:17.822  MAIN        ( INFO    ) : 17929: shutting down in one second
>Error in atexit._run_exitfuncs:
>Traceback (most recent call last):
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>Error in atexit._run_exitfuncs:
>Traceback (most recent call last):
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>28.10.21 05:20:17        INFO      (    17895) : shutting down
>28.10.21 05:20:17.823  MAIN        ( INFO    ) : 17916: shutting down in one second
>28.10.21 05:20:17        INFO      (    17897) : shutting down
>28.10.21 05:20:17.823  MAIN        ( INFO    ) : 17934: shutting down in one second
>28.10.21 05:20:17        INFO      (    17888) : shutting down
>28.10.21 05:20:17.823  MAIN        ( INFO    ) : 17917: shutting down in one second
>28.10.21 05:20:17.824  MAIN        ( INFO    ) : 17915: shutting down in one second
>Error in atexit._run_exitfuncs:
>Traceback (most recent call last):
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>Error in atexit._run_exitfuncs:
>28.10.21 05:20:17        INFO      (    17886) : shutting down
>Traceback (most recent call last):
>28.10.21 05:20:17.824  MAIN        ( INFO    ) : 17918: shutting down in one second
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>Error in atexit._run_exitfuncs:
>Traceback (most recent call last):
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>    p.join()
>  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>    p.join()
>  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>Error in atexit._run_exitfuncs:
>Traceback (most recent call last):
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>28.10.21 05:20:17.825  MAIN        ( INFO    ) : 17921: shutting down in one second
>    p.join()
>  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>28.10.21 05:20:17        INFO      (    17891) : shutting down
>    p.join()
>  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>    assert self._parent_pid == os.getpid(), 'can only join a child process'
>AssertionError: 28.10.21 05:20:17.826  MAIN        ( INFO    ) : 17923: shutting down in one second
>can only join a child process
>    p.join()
>  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>Traceback (most recent call last):
>    assert self._parent_pid == os.getpid(), 'can only join a child process'
>  File "/usr/lib/python3.7/multiprocessing/managers.py", line 788, in _callmethod
>AssertionError: can only join a child process
>Error in atexit._run_exitfuncs:
>Traceback (most recent call last):
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>    p.join()
>  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>    assert self._parent_pid == os.getpid(), 'can only join a child process'
>AssertionError: can only join a child process
>    p.join()
>  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>    assert self._parent_pid == os.getpid(), 'can only join a child process'
>AssertionError: can only join a child process
>    conn = self._tls.connection
>AttributeError: 'ForkAwareLocal' object has no attribute 'connection'
>
>During handling of the above exception, another exception occurred:
>
>Traceback (most recent call last):
>  File "/usr/lib/python3.7/runpy.py", line 193, in _run_module_as_main
>    assert self._parent_pid == os.getpid(), 'can only join a child process'
>AssertionError: can only join a child process
>    "__main__", mod_spec)
>Traceback (most recent call last):
>  File "/usr/lib/python3.7/runpy.py", line 85, in _run_code
>  File "/usr/lib/python3.7/runpy.py", line 193, in _run_module_as_main
>    exec(code, run_globals)
>  File "/usr/lib/python3/dist-packages/univention/admin/rest/server/__main__.py", line 42, in <module>
>    "__main__", mod_spec)
>  File "/usr/lib/python3.7/runpy.py", line 85, in _run_code
>    exec(code, run_globals)
>  File "/usr/lib/python3/dist-packages/univention/admin/rest/__main__.py", line 202, in <module>
>    Server.main()
>  File "/usr/lib/python3/dist-packages/univention/admin/rest/server/__init__.py", line 227, in main
>        cls.child_id = tornado.process.fork_processes(args.cpus, 0)Server.main()
>
>  File "/usr/lib/python3/dist-packages/tornado/process.py", line 150, in fork_processes
>  File "/usr/lib/python3/dist-packages/univention/admin/rest/__main__.py", line 198, in main
>    args.func(args)
>  File "/usr/lib/python3/dist-packages/univention/admin/rest/__main__.py", line 110, in run
>        self.child_id = tornado.process.fork_processes(args.cpus, 0)assert self._parent_pid == os.getpid(), 'can only join a child process'
>
>  File "/usr/lib/python3/dist-packages/tornado/process.py", line 150, in fork_processes
>AssertionError: can only join a child process
>Traceback (most recent call last):
>  File "/usr/lib/python3.7/runpy.py", line 193, in _run_module_as_main
>    "__main__", mod_spec)
>  File "/usr/lib/python3.7/runpy.py", line 85, in _run_code
>    exec(code, run_globals)
>  File "/usr/lib/python3/dist-packages/univention/admin/rest/__main__.py", line 202, in <module>
>    Server.main()
>  File "/usr/lib/python3/dist-packages/univention/admin/rest/__main__.py", line 198, in main
>    args.func(args)
>  File "/usr/lib/python3/dist-packages/univention/admin/rest/__main__.py", line 110, in run
>    self.child_id = tornado.process.fork_processes(args.cpus, 0)
>  File "/usr/lib/python3/dist-packages/tornado/process.py", line 150, in fork_processes
>28.10.21 05:20:17        INFO      (    17889) : shutting down
>Error in atexit._run_exitfuncs:
>Traceback (most recent call last):
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>    p.join()
>  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>    assert self._parent_pid == os.getpid(), 'can only join a child process'
>AssertionError: can only join a child process
>    assert self._parent_pid == os.getpid(), 'can only join a child process'
>AssertionError: can only join a child process
>            pid, status = os.wait()pid, status = os.wait()
>pid, status = os.wait()
>
>  File "/usr/lib/python3/dist-packages/univention/admin/rest/__main__.py", line 139, in signal_handler_stop
>  File "/usr/lib/python3/dist-packages/univention/admin/rest/__main__.py", line 139, in signal_handler_stop
>  File "/usr/lib/python3/dist-packages/univention/admin/rest/server/__init__.py", line 302, in signal_handler_stop
>        CORE.info('stopping children: %r' % (list(self.children.values()),))CORE.info('stopping children: %r' % (list(self.children.values()),))
>
>  File "<string>", line 2, in values
>  File "<string>", line 2, in values
>    logger.info('stopping children: %r', list(cls.children.values()))
>  File "<string>", line 2, in values
>  File "/usr/lib/python3.7/multiprocessing/managers.py", line 792, in _callmethod
>  File "/usr/lib/python3.7/multiprocessing/managers.py", line 796, in _callmethod
>  File "/usr/lib/python3.7/multiprocessing/managers.py", line 796, in _callmethod
>    self._connect()
>      File "/usr/lib/python3.7/multiprocessing/managers.py", line 779, in _connect
>kind, result = conn.recv()
>      File "/usr/lib/python3.7/multiprocessing/connection.py", line 250, in recv
>kind, result = conn.recv()
>  File "/usr/lib/python3.7/multiprocessing/connection.py", line 250, in recv
>    conn = self._Client(self._token.address, authkey=self._authkey)
>  File "/usr/lib/python3.7/multiprocessing/connection.py", line 498, in Client
>    buf = self._recv_bytes()
>      File "/usr/lib/python3.7/multiprocessing/connection.py", line 407, in _recv_bytes
>buf = self._recv_bytes()
>      File "/usr/lib/python3.7/multiprocessing/connection.py", line 407, in _recv_bytes
>answer_challenge(c, authkey)
>  File "/usr/lib/python3.7/multiprocessing/connection.py", line 741, in answer_challenge
>    buf = self._recv(4)
>      File "/usr/lib/python3.7/multiprocessing/connection.py", line 379, in _recv
>buf = self._recv(4)
>  File "/usr/lib/python3.7/multiprocessing/connection.py", line 379, in _recv
>    chunk = read(handle, remaining)
>    chunk = read(handle, remaining)
>ConnectionResetError: [Errno 104] Die Verbindung wurde vom Kommunikationspartner zurÃ¼ckgesetzt
>ConnectionResetError: [Errno 104] Connection reset by peer
>    message = connection.recv_bytes(256)         # reject large message
>  File "/usr/lib/python3.7/multiprocessing/connection.py", line 216, in recv_bytes
>    buf = self._recv_bytes(maxlength)
>  File "/usr/lib/python3.7/multiprocessing/connection.py", line 407, in _recv_bytes
>    buf = self._recv(4)
>  File "/usr/lib/python3.7/multiprocessing/connection.py", line 383, in _recv
>    raise EOFError
>EOFError
>28.10.21 05:20:18.130  MAIN        ( INFO    ) : 17922: shutting down in one second
>28.10.21 05:20:18.130  MAIN        ( INFO    ) : 17921: shutting down in one second
>28.10.21 05:20:18.130  MAIN        ( INFO    ) : 17934: shutting down in one second
>28.10.21 05:20:18.130  MAIN        ( INFO    ) : 17937: shutting down in one second
>28.10.21 05:20:18.130  MAIN        ( INFO    ) : 17933: shutting down in one second
>28.10.21 05:20:18.130  MAIN        ( INFO    ) : 17936: shutting down in one second
>28.10.21 05:20:18.130  MAIN        ( INFO    ) : 17916: shutting down in one second
>28.10.21 05:20:18.130  MAIN        ( INFO    ) : 17917: shutting down in one second
>28.10.21 05:20:18.130  MAIN        ( INFO    ) : 17929: shutting down in one second
>28.10.21 05:20:18.130  MAIN        ( INFO    ) : 17926: shutting down in one second
>28.10.21 05:20:18.130  MAIN        ( INFO    ) : 17930: shutting down in one second
>28.10.21 05:20:18.130  MAIN        ( INFO    ) : 17931: shutting down in one second
>28.10.21 05:20:18.130  MAIN        ( INFO    ) : 17928: shutting down in one second
>28.10.21 05:20:18.130  MAIN        ( INFO    ) : 17915: shutting down in one second
>28.10.21 05:20:18.130  MAIN        ( INFO    ) : 17918: shutting down in one second
>28.10.21 05:20:18.130  MAIN        ( INFO    ) : 17923: shutting down in one second
>Error in atexit._run_exitfuncs:
>Error in atexit._run_exitfuncs:
>Error in atexit._run_exitfuncs:
>Error in atexit._run_exitfuncs:
>Error in atexit._run_exitfuncs:
>Error in atexit._run_exitfuncs:
>Error in atexit._run_exitfuncs:
>Error in atexit._run_exitfuncs:
>Error in atexit._run_exitfuncs:
>Error in atexit._run_exitfuncs:
>Error in atexit._run_exitfuncs:
>Error in atexit._run_exitfuncs:
>Error in atexit._run_exitfuncs:
>Error in atexit._run_exitfuncs:
>Error in atexit._run_exitfuncs:
>Error in atexit._run_exitfuncs:
>Traceback (most recent call last):
>Traceback (most recent call last):
>Traceback (most recent call last):
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>Traceback (most recent call last):
>Traceback (most recent call last):
>Traceback (most recent call last):
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>Traceback (most recent call last):
>Traceback (most recent call last):
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>Traceback (most recent call last):
>Traceback (most recent call last):
>Traceback (most recent call last):
>Traceback (most recent call last):
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>Traceback (most recent call last):
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>Traceback (most recent call last):
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>Traceback (most recent call last):
>Traceback (most recent call last):
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>  File "/usr/lib/python3.7/multiprocessing/util.py", line 322, in _exit_function
>        p.join()p.join()
>
>  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>    p.join()            
>p.join()p.join()p.join()
>    
>      File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>
>assert self._parent_pid == os.getpid(), 'can only join a child process'  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>assert self._parent_pid == os.getpid(), 'can only join a child process'
>  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>
>  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>AssertionErrorAssertionError: : can only join a child processcan only join a child process
>
>        assert self._parent_pid == os.getpid(), 'can only join a child process'        
>assert self._parent_pid == os.getpid(), 'can only join a child process'assert self._parent_pid == os.getpid(), 'can only join a child process'assert self._parent_pid == os.getpid(), 'can only join a child process'
>
>
>AssertionErrorAssertionErrorAssertionErrorAssertionError: : : : can only join a child processcan only join a child processcan only join a child process
>can only join a child process
>
>
>    p.join()
>  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>    p.join()
>  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>    assert self._parent_pid == os.getpid(), 'can only join a child process'
>AssertionError: can only join a child process
>    assert self._parent_pid == os.getpid(), 'can only join a child process'
>        AssertionErrorp.join()p.join(): 
>
>can only join a child process  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>
>  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>    p.join()
>      File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>    p.join()assert self._parent_pid == os.getpid(), 'can only join a child process'    
>
>p.join()    
>  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>assert self._parent_pid == os.getpid(), 'can only join a child process'  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>
>AssertionError: AssertionError: can only join a child process    can only join a child process
>
>assert self._parent_pid == os.getpid(), 'can only join a child process'    
>p.join()
>    AssertionError  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>assert self._parent_pid == os.getpid(), 'can only join a child process'    : 
>can only join a child processassert self._parent_pid == os.getpid(), 'can only join a child process'
>AssertionError
>: can only join a child process
>AssertionError:     can only join a child process    
>p.join()assert self._parent_pid == os.getpid(), 'can only join a child process'
>
>AssertionError  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>: can only join a child process
>    assert self._parent_pid == os.getpid(), 'can only join a child process'
>AssertionError: can only join a child process
>    p.join()
>  File "/usr/lib/python3.7/multiprocessing/process.py", line 138, in join
>    assert self._parent_pid == os.getpid(), 'can only join a child process'
>AssertionError: can only join a child process
>

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Attachments on bug 50050: 10184 | 10506 | 10851 | 10884