[issue30333] test_multiprocessing_forkserver: poll() failed on AMD64 FreeBSD CURRENT Non-Debug 3.5

[STINNER Victor]

STINNER Victor added the comment:

Other test_multiprocessing_forkserver errors on AMD64 FreeBSD CURRENT Non-Debug 3.6.

http://buildbot.python.org/all/builders/AMD64%20FreeBSD%20CURRENT%20Non-Debug%203.6/builds/150/steps/test/logs/stdio

(...)
test_import (test.test_multiprocessing_forkserver._TestImportStar) ... ok
Dangling threads: {<Thread(Thread-97, started daemon 34452785920)>}

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FAIL: test_active_children (test.test_multiprocessing_forkserver.WithProcessesTestProcess)
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Traceback (most recent call last):
  File "/usr/home/buildbot/python/3.6.koobs-freebsd-current.nondebug/build/Lib/test/_test_multiprocessing.py", line 345, in test_active_children
    self.assertIn(p, self.active_children())
AssertionError: <Process(Process-226, stopped daemon)> not found in []

======================================================================
FAIL: test_notify (test.test_multiprocessing_forkserver.WithThreadsTestCondition)
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Traceback (most recent call last):
  File "/usr/home/buildbot/python/3.6.koobs-freebsd-current.nondebug/build/Lib/test/_test_multiprocessing.py", line 886, in test_notify
    self.assertReturnsIfImplemented(1, get_value, woken)
  File "/usr/home/buildbot/python/3.6.koobs-freebsd-current.nondebug/build/Lib/test/_test_multiprocessing.py", line 165, in assertReturnsIfImplemented
    return self.assertEqual(value, res)
AssertionError: 1 != 0

----------------------------------------------------------------------
Ran 277 tests in 92.148s

FAILED (failures=2, skipped=16)
Warning -- threading._dangling was modified by test_multiprocessing_forkserver
  Before: <_weakrefset.WeakSet object at 0x805771518>
  After:  <_weakrefset.WeakSet object at 0x8009c6cf8> 
test test_multiprocessing_forkserver failed

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<http://bugs.python.org/issue30333>
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