cagney <[email protected]> added the comment:
More info from adding a faulthandler ...
15 def f():
16 import ctypes
17
18 for i in range(0,50):
19 sys.stdout.write("\r%d" % i)
20 sys.stdout.flush()
21 signal.alarm(60*2)
22 for j in range(0,1000):
23 with concurrent.futures.ProcessPoolExecutor() as executor:
24 ftr = executor.submit(f)
25 ftr.result()
Thread 0x00007f1ce7fff700 (most recent call first):
File "/home/python/v3.7.3/lib/python3.7/threading.py", line 296 in wait
File "/home/python/v3.7.3/lib/python3.7/multiprocessing/queues.py", line 224
in _feed
File "/home/python/v3.7.3/lib/python3.7/threading.py", line 865 in run
File "/home/python/v3.7.3/lib/python3.7/threading.py", line 917 in
_bootstrap_inner
File "/home/python/v3.7.3/lib/python3.7/threading.py", line 885 in _bootstrap
Thread 0x00007f1cec917700 (most recent call first):
File "/home/python/v3.7.3/lib/python3.7/selectors.py", line 415 in select
File "/home/python/v3.7.3/lib/python3.7/multiprocessing/connection.py", line
920 in wait
File "/home/python/v3.7.3/lib/python3.7/concurrent/futures/process.py", line
354 in _queue_management_worker
File "/home/python/v3.7.3/lib/python3.7/threading.py", line 865 in run
File "/home/python/v3.7.3/lib/python3.7/threading.py", line 917 in
_bootstrap_inner
File "/home/python/v3.7.3/lib/python3.7/threading.py", line 885 in _bootstrap
Current thread 0x00007f1cfd9486c0 (most recent call first):
File "/home/python/v3.7.3/lib/python3.7/threading.py", line 296 in wait
File "/home/python/v3.7.3/lib/python3.7/concurrent/futures/_base.py", line
427 in result
File "cf-deadlock.py", line 25 in <module>
----------
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<https://bugs.python.org/issue35866>
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