The test still hangs randomly. Can it be disabled or fixed?

s390x Debian 3.x:
https://buildbot.python.org/all/#builders/105/builds/167

test_close_dont_kill_finished (test.test_asyncio.test_subprocess.SubprocessMultiLoopWatcherTests) ... ok
Timeout (0:15:00)!
Thread 0x000003ffaa9f8700 (most recent call first):
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/selectors.py", line 468 in select
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/asyncio/base_events.py", line 1852 in _run_once
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/asyncio/base_events.py", line 596 in run_forever
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/asyncio/base_events.py", line 629 in run_until_complete
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/test/test_asyncio/test_subprocess.py", line 485 in test_close_kill_running
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/case.py", line 616 in _callTestMethod
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/case.py", line 659 in run
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/case.py", line 719 in __call__
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/suite.py", line 122 in run
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/suite.py", line 84 in __call__
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/suite.py", line 122 in run
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/suite.py", line 84 in __call__
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/suite.py", line 122 in run
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/suite.py", line 84 in __call__
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/suite.py", line 122 in run
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/suite.py", line 84 in __call__
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/suite.py", line 122 in run
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/suite.py", line 84 in __call__
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/unittest/runner.py", line 176 in run
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/test/support/__init__.py", line 2079 in _run_suite
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/test/support/__init__.py", line 2201 in run_unittest
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/test/libregrtest/runtest.py", line 209 in _test_module
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/test/libregrtest/runtest.py", line 234 in _runtest_inner2
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/test/libregrtest/runtest.py", line 270 in _runtest_inner
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/test/libregrtest/runtest.py", line 153 in _runtest
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/test/libregrtest/runtest.py", line 193 in runtest
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/test/libregrtest/main.py", line 318 in rerun_failed_tests
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/test/libregrtest/main.py", line 691 in _main
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/test/libregrtest/main.py", line 634 in main
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/test/libregrtest/main.py", line 712 in main
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/test/__main__.py", line 2 in <module>
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/runpy.py", line 86 in _run_code
  File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/runpy.py", line 193 in _run_module_as_main
test_close_kill_running (test.test_asyncio.test_subprocess.SubprocessMultiLoopWatcherTests) ... Makefile:1164: recipe for target 'buildbottest' failed
make: *** [buildbottest] Error 1