The Buildbot has detected a new failure on builder aarch64 RHEL8 LTO + PGO 3.x while building python/cpython. Full details are available at: https://buildbot.python.org/all/#/builders/78/builds/5187

Buildbot URL: https://buildbot.python.org/all/

Worker for this Build: cstratak-RHEL8-aarch64

Build Reason: <unknown> Blamelist: Alex Waygood <Alex.Waygood@Gmail.com>, Nikita Sobolev <mail@sobolevn.me>

BUILD FAILED: failed test (failure)

Summary of the results of the build (if available):

== Tests result: FAILURE then FAILURE ==

446 tests OK.

10 slowest tests:

• test.test_concurrent_futures.test_wait: 1 min 10 sec
• test_signal: 1 min 10 sec
• test.test_multiprocessing_spawn.test_processes: 52.7 sec
• test_socket: 45.0 sec
• test_io: 41.0 sec
• test.test_multiprocessing_forkserver.test_processes: 38.3 sec
• test_imaplib: 32.6 sec
• test_subprocess: 31.7 sec
• test.test_multiprocessing_spawn.test_misc: 31.5 sec
• test.test_asyncio.test_tasks: 29.8 sec

1 test failed: test.test_concurrent_futures.test_shutdown

15 tests skipped: test.test_asyncio.test_windows_events test.test_asyncio.test_windows_utils test_devpoll test_gdb test_ioctl test_kqueue test_launcher test_startfile test_tkinter test_ttk test_winconsoleio test_winreg test_winsound test_wmi test_zipfile64

1 re-run test: test.test_concurrent_futures.test_shutdown

Total duration: 1 min 22 sec

Captured traceback

Traceback (most recent call last): File "/home/buildbot/buildarea/3.x.cstratak-RHEL8-aarch64.lto-pgo/build/Lib/test/test_concurrent_futures/test_shutdown.py", line 49, in test_interpreter_shutdown self.assertFalse(err) AssertionError: b'Exception in thread Thread-1:\nTraceback (most recent call last):\n File "/home/buildbot/buildarea/3.x.cstratak-RHEL8-aarch64.lto-pgo/build/Lib/threading.py", line 1059, in _bootstrap_inner\n self.run()\n File "/home/buildbot/buildarea/3.x.cstratak-RHEL8-aarch64.lto-pgo/build/Lib/concurrent/futures/process.py", line 339, in run\n self.add_call_item_to_queue()\n File "/home/buildbot/buildarea/3.x.cstratak-RHEL8-aarch64.lto-pgo/build/Lib/concurrent/futures/process.py", line 394, in add_call_item_to_queue\n self.call_queue.put(_CallItem(work_id,\n File "/home/buildbot/buildarea/3.x.cstratak-RHEL8-aarch64.lto-pgo/build/Lib/multiprocessing/queues.py", line 94, in put\n self._start_thread()\n File "/home/buildbot/buildarea/3.x.cstratak-RHEL8-aarch64.lto-pgo/build/Lib/multiprocessing/queues.py", line 177, in _start_thread\n self._thread.start()\n File "/home/buildbot/buildarea/3.x.cstratak-RHEL8-aarch64.lto-pgo/build/Lib/threading.py", line 978, in sta rt\n _start_new_thread(self._bootstrap, ())\nRuntimeError: can\'t create new thread at interpreter shutdown\nTraceback (most recent call last):\n File "<string>", line 1, in <module>\n File "/home/buildbot/buildarea/3.x.cstratak-RHEL8-aarch64.lto-pgo/build/Lib/multiprocessing/spawn.py", line 122, in spawn_main\n exitcode = _main(fd, parent_sentinel)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^\n File "/home/buildbot/buildarea/3.x.cstratak-RHEL8-aarch64.lto-pgo/build/Lib/multiprocessing/spawn.py", line 132, in _main\n self = reduction.pickle.load(from_parent)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File "/home/buildbot/buildarea/3.x.cstratak-RHEL8-aarch64.lto-pgo/build/Lib/multiprocessing/synchronize.py", line 115, in __setstate__\n self._semlock = _multiprocessing.SemLock._rebuild(*state)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\nFileNotFoundError: [Errno 2] No such file or directory\n' is not false

Test report

Failed tests:

• test.test_concurrent_futures.test_shutdown

Failed subtests:

• test_interpreter_shutdown - test.test_concurrent_futures.test_shutdown.ProcessPoolSpawnProcessPoolShutdownTest.test_interpreter_shutdown

Sincerely, -The Buildbot