[issue39995] test_concurrent_futures: ProcessPoolSpawnExecutorDeadlockTest.test_crash() fails with OSError: [Errno 9] Bad file descriptor
STINNER Victor
report at bugs.python.org
Mon Apr 27 16:09:04 EDT 2020
STINNER Victor <vstinner at python.org> added the comment:
AMD64 Fedora Stable Clang Installed 3.x:
https://buildbot.python.org/all/#/builders/127/builds/679
0:04:21 load avg: 1.29 [423/423/1] test_concurrent_futures failed (2 min 39 sec)
Warning -- threading_cleanup() failed to cleanup -1 threads (count: 0, dangling: 3)
Warning -- Dangling thread: <_MainThread(MainThread, started 139673296918336)>
Warning -- Dangling thread: <Thread(QueueFeederThread, stopped daemon 139673045362432)>
Warning -- Dangling thread: <_ExecutorManagerThread(Thread-145, stopped 139673053914880)>
Warning -- threading_cleanup() failed to cleanup 0 threads (count: 0, dangling: 3)
Warning -- Dangling thread: <_MainThread(MainThread, started 139673296918336)>
Warning -- Dangling thread: <Thread(QueueFeederThread, stopped daemon 139673045362432)>
Warning -- Dangling thread: <_ExecutorManagerThread(Thread-145, stopped 139673053914880)>
/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/resource_tracker.py:216: UserWarning: resource_tracker: There appear to be 5 leaked semaphore objects to clean up at shutdown
warnings.warn('resource_tracker: There appear to be %d '
Warning -- multiprocessing.process._dangling was modified by test_concurrent_futures
Warning -- threading._dangling was modified by test_concurrent_futures
test_cancel (test.test_concurrent_futures.FutureTests) ... ok
test_cancelled (test.test_concurrent_futures.FutureTests) ... ok
test_done (test.test_concurrent_futures.FutureTests) ... ok
(...)
test_first_exception_some_already_complete (test.test_concurrent_futures.ThreadPoolWaitTests) ... 1.60s ok
test_pending_calls_race (test.test_concurrent_futures.ThreadPoolWaitTests) ... 0.11s ok
test_timeout (test.test_concurrent_futures.ThreadPoolWaitTests) ... 6.11s ok
Traceback (most recent call last):
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/util.py", line 300, in _run_finalizers
finalizer()
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/util.py", line 224, in __call__
res = self._callback(*self._args, **self._kwargs)
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/synchronize.py", line 87, in _cleanup
sem_unlink(name)
FileNotFoundError: [Errno 2] No such file or directory
Traceback (most recent call last):
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/util.py", line 300, in _run_finalizers
finalizer()
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/util.py", line 224, in __call__
res = self._callback(*self._args, **self._kwargs)
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/synchronize.py", line 87, in _cleanup
sem_unlink(name)
FileNotFoundError: [Errno 2] No such file or directory
Traceback (most recent call last):
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/util.py", line 300, in _run_finalizers
finalizer()
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/util.py", line 224, in __call__
res = self._callback(*self._args, **self._kwargs)
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/synchronize.py", line 87, in _cleanup
sem_unlink(name)
FileNotFoundError: [Errno 2] No such file or directory
Traceback (most recent call last):
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/util.py", line 300, in _run_finalizers
finalizer()
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/util.py", line 224, in __call__
res = self._callback(*self._args, **self._kwargs)
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/synchronize.py", line 87, in _cleanup
sem_unlink(name)
FileNotFoundError: [Errno 2] No such file or directory
Traceback (most recent call last):
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/util.py", line 300, in _run_finalizers
finalizer()
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/util.py", line 224, in __call__
res = self._callback(*self._args, **self._kwargs)
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/synchronize.py", line 87, in _cleanup
sem_unlink(name)
FileNotFoundError: [Errno 2] No such file or directory
======================================================================
ERROR: test_killed_child (test.test_concurrent_futures.ProcessPoolSpawnProcessPoolExecutorTest)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/test/test_concurrent_futures.py", line 130, in tearDown
self.executor.shutdown(wait=True)
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/concurrent/futures/process.py", line 724, in shutdown
self._executor_manager_thread_wakeup.wakeup()
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/concurrent/futures/process.py", line 80, in wakeup
self._writer.send_bytes(b"")
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/connection.py", line 205, in send_bytes
self._send_bytes(m[offset:offset + size])
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/connection.py", line 416, in _send_bytes
self._send(header + buf)
File "/home/buildbot/buildarea/3.x.cstratak-fedora-stable-x86_64.clang-installed/build/target/lib/python3.9/multiprocessing/connection.py", line 373, in _send
n = write(self._handle, buf)
OSError: [Errno 9] Bad file descriptor
----------------------------------------------------------------------
Ran 193 tests in 159.805s
FAILED (errors=1, skipped=6)
Before: set()
After: {<weakref at 0x7f0828b17bd0; to 'SpawnProcess' at 0x7f082ace7400>, <weakref at 0x7f0828b17b80; to 'SpawnProcess' at 0x7f082ace7880>, <weakref at 0x7f0828b17b30; to 'SpawnProcess' at 0x7f0828bbc0a0>, <weakref at 0x7f0828b17720; to 'SpawnProcess' at 0x7f082ace72e0>, <weakref at 0x7f0828b17a90; to 'SpawnProcess' at 0x7f082ace7910>}
Before: {<weakref at 0x7f082b5ad400; to '_MainThread' at 0x7f082bcd8850>}
After: {<weakref at 0x7f0828b4d900; to 'Thread' at 0x7f0828bbc4c0>, <weakref at 0x7f0828b4d0e0; to '_MainThread' at 0x7f082bcd8850>, <weakref at 0x7f0828b17a40; to '_ExecutorManagerThread' at 0x7f0828bbc8e0>}
test test_concurrent_futures failed
== Tests result: FAILURE ==
----------
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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue39995>
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