Buildbot failure in Python on s390x Debian 3.x

The Buildbot has detected a failed build on builder s390x Debian 3.x while building python/cpython. Full details are available at: https://buildbot.python.org/all/#builders/49/builds/236
Buildbot URL: https://buildbot.python.org/all/
Worker for this Build: edelsohn-debian-z
Build Reason: <unknown> Blamelist: Matti Picus <matti.picus@gmail.com>, Victor Stinner <vstinner@python.org>
BUILD FAILED: failed test (failure)
Summary of the results of the build (if available):
== Tests result: FAILURE then FAILURE ==
409 tests OK.
10 slowest tests:
- test_concurrent_futures: 3 min 46 sec
- test_gdb: 2 min 28 sec
- test_peg_generator: 2 min 11 sec
- test_multiprocessing_spawn: 2 min 7 sec
- test_tokenize: 2 min 5 sec
- test_unparse: 1 min 59 sec
- test_capi: 1 min 57 sec
- test_multiprocessing_forkserver: 1 min 30 sec
- test_asyncio: 1 min 20 sec
- test_lib2to3: 1 min 15 sec
1 test failed: test_gdb
14 tests skipped: test_dbm_ndbm test_devpoll test_ioctl test_kqueue test_msilib test_ossaudiodev test_startfile test_tix test_tk test_ttk_guionly test_winconsoleio test_winreg test_winsound test_zipfile64
3 re-run tests: test_gdb test_multiprocessing_forkserver test_multiprocessing_spawn
Total duration: 11 min 29 sec
Captured traceback
Traceback (most recent call last): File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/test/_test_multiprocessing.py", line 3086, in test_connection self.assertEqual(poll(TIMEOUT1), True) AssertionError: False != True
Traceback (most recent call last): File "<string>", line 1, in <module> File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/multiprocessing/spawn.py", line 116, in spawn_main exitcode = _main(fd, parent_sentinel) File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/multiprocessing/spawn.py", line 126, in _main self = reduction.pickle.load(from_parent) File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/multiprocessing/synchronize.py", line 110, in __setstate__ self._semlock = _multiprocessing.SemLock._rebuild(*state) FileNotFoundError: [Errno 2] No such file or directory
Traceback (most recent call last): File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/test/test_gdb.py", line 861, in test_gc self.assertIn('Garbage-collecting', gdb_output) AssertionError: 'Garbage-collecting' not found in 'Breakpoint 1 at 0x29ae90: file Python/bltinmodule.c, line 1173.\n[Thread debugging using libthread_db enabled]\nUsing host libthread_db library "/lib/s390x-linux-gnu/libthread_db.so.1".\n\nBreakpoint 1, builtin_id (self=, v=42) at Python/bltinmodule.c:1173\n1173\t{\nBreakpoint 2: file Modules/gcmodule.c, line 420.\n\nBreakpoint 2, update_refs (containers=) at Modules/gcmodule.c:420\n420\t{\nTraceback (most recent call first):\n <built-in method collect of module object at remote 0x3fffddf7d70>\n File "<string>", line 4, in foo\n File "<string>", line 6, in bar\n File "<string>", line 7, in <module>\n'
Traceback (most recent call last): File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/test/_test_multiprocessing.py", line 942, in test_put self.assertEqual(queue_empty(queue), False) AssertionError: True != False
Traceback (most recent call last): File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/multiprocessing/process.py", line 315, in _bootstrap self.run() File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/multiprocessing/process.py", line 108, in run self._target(*self._args, **self._kwargs) File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/test/_test_multiprocessing.py", line 3024, in _echo conn.send_bytes(msg) File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/multiprocessing/connection.py", line 205, in send_bytes self._send_bytes(m[offset:offset + size]) File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/multiprocessing/connection.py", line 416, in _send_bytes self._send(header + buf) File "/home/dje/cpython-buildarea/3.x.edelsohn-debian-z/build/Lib/multiprocessing/connection.py", line 373, in _send n = write(self._handle, buf) BrokenPipeError: [Errno 32] Broken pipe
Test report
Failed tests:
- test_gdb
Failed subtests:
- test_put - test.test_multiprocessing_spawn.WithProcessesTestQueue
- test_gc - test.test_gdb.PyBtTests
- test_connection - test.test_multiprocessing_forkserver.WithProcessesTestConnection
Sincerely, -The Buildbot
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buildbot@python.org