The Buildbot has detected a new failure on builder AMD64 Debian root 3.x while building python/cpython. Full details are available at: https://buildbot.python.org/#/builders/345/builds/9906

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

Worker for this Build: angelico-debian-amd64

Build Reason: <unknown> Blamelist: Sam Gross <colesbury@gmail.com>

BUILD FAILED: failed test (failure)

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

==

Captured traceback

Traceback (most recent call last): File "<string>", line 1, in <module> from multiprocessing.forkserver import main; main(10, 11, ['__main__'], **{'sys_path': ['/root/buildarea/3.x.angelico-debian-amd64/build/target/lib/python314.zip', '/root/buildarea/3.x.angelico-debian-amd64/build/Lib', '/root/buildarea/3.x.angelico-debian-amd64/build/build/lib.linux-x86_64-3.14'], 'authkey_r': 13}) ~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/forkserver.py", line 324, in main pid = os.fork() OSError: [Errno 12] Cannot allocate memory Traceback (most recent call last): File "/root/buildarea/3.x.angelico-debian-amd64/build/build/test_python_2151385æ/@test_2151385_tmpæ", line 4, in <module> with multiprocessing.Pool(200) as p: ~~~~~~~~~~~~~~~~~~~~^^^^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/context.py", line 119, in Pool return Pool(processes, initializer, initargs, maxtasksperchild, context=self.get_context()) File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/pool.py", line 215, in __init__ self._repopulate_pool() ~~~~~~~~~~~~~~~~~~~~~^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/pool.py", line 306, in _repopulate_pool return self._repopulate_pool_static(self._ctx, self.Process, ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^ self._processes, ^^^^^^^^^^^^^^^^ ...<3 lines>... self._maxtasksperchild, ^^^^^^^^^^^^^^^^^^^^^^^ self._wrap_exception) ^^^^^^^^^^^^^^^^^^^^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/pool.py", line 329, in _repopulate_pool_static w.start() ~~~~~~~^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/process.py", line 121, in start self._popen = self._Popen(self) ~~~~~~~~~~~^^^^^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/context.py", line 300, in _Popen return Popen(process_obj) File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/popen_forkserver.py", line 35, in __init__ super().__init__(process_obj) ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/popen_fork.py", line 20, in __init__ self._launch(process_obj) ~~~~~~~~~~~~^^^^^^^^^^^^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/popen_forkserver.py", line 59, in _launch self.pid = forkserver.read_signed(self.sentinel) ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/forkserver.py", line 390, in read_signed raise EOFError('unexpected EOF') EOFError: unexpected EOF

Traceback (most recent call last): File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/test/_test_multiprocessing.py", line 6607, in test_large_pool rc, out, err = script_helper.assert_python_ok(testfn) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/test/support/script_helper.py", line 182, in assert_python_ok return _assert_python(True, *args, **env_vars) File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/test/support/script_helper.py", line 167, in _assert_python res.fail(cmd_line) ~~~~~~~~^^^^^^^^^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/test/support/script_helper.py", line 80, in fail raise AssertionError(f"Process return code is {exitcode}\n" ...<10 lines>... f"---") AssertionError: Process return code is 1 command line: ['/root/buildarea/3.x.angelico-debian-amd64/build/python', '-X', 'faulthandler', '-I', '@test_2151385_tmpæ']

Traceback (most recent call last): File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/test/_test_multiprocessing.py", line 6607, in test_large_pool rc, out, err = script_helper.assert_python_ok(testfn) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/test/support/script_helper.py", line 182, in assert_python_ok return _assert_python(True, *args, **env_vars) File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/test/support/script_helper.py", line 167, in _assert_python res.fail(cmd_line) ~~~~~~~~^^^^^^^^^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/test/support/script_helper.py", line 80, in fail raise AssertionError(f"Process return code is {exitcode}\n" ...<10 lines>... f"---") AssertionError: Process return code is 1 command line: ['/root/buildarea/3.x.angelico-debian-amd64/build/python', '-X', 'faulthandler', '-I', '@test_2126709_tmpæ']

Traceback (most recent call last): File "<string>", line 1, in <module> from multiprocessing.forkserver import main; main(10, 11, ['__main__'], **{'sys_path': ['/root/buildarea/3.x.angelico-debian-amd64/build/target/lib/python314.zip', '/root/buildarea/3.x.angelico-debian-amd64/build/Lib', '/root/buildarea/3.x.angelico-debian-amd64/build/build/lib.linux-x86_64-3.14'], 'authkey_r': 13}) ~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/forkserver.py", line 324, in main pid = os.fork() OSError: [Errno 12] Cannot allocate memory Traceback (most recent call last): File "/root/buildarea/3.x.angelico-debian-amd64/build/build/test_python_2126709æ/@test_2126709_tmpæ", line 4, in <module> with multiprocessing.Pool(200) as p: ~~~~~~~~~~~~~~~~~~~~^^^^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/context.py", line 119, in Pool return Pool(processes, initializer, initargs, maxtasksperchild, context=self.get_context()) File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/pool.py", line 215, in __init__ self._repopulate_pool() ~~~~~~~~~~~~~~~~~~~~~^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/pool.py", line 306, in _repopulate_pool return self._repopulate_pool_static(self._ctx, self.Process, ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^ self._processes, ^^^^^^^^^^^^^^^^ ...<3 lines>... self._maxtasksperchild, ^^^^^^^^^^^^^^^^^^^^^^^ self._wrap_exception) ^^^^^^^^^^^^^^^^^^^^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/pool.py", line 329, in _repopulate_pool_static w.start() ~~~~~~~^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/process.py", line 121, in start self._popen = self._Popen(self) ~~~~~~~~~~~^^^^^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/context.py", line 300, in _Popen return Popen(process_obj) File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/popen_forkserver.py", line 35, in __init__ super().__init__(process_obj) ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/popen_fork.py", line 20, in __init__ self._launch(process_obj) ~~~~~~~~~~~~^^^^^^^^^^^^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/popen_forkserver.py", line 59, in _launch self.pid = forkserver.read_signed(self.sentinel) ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^ File "/root/buildarea/3.x.angelico-debian-amd64/build/Lib/multiprocessing/forkserver.py", line 390, in read_signed raise EOFError('unexpected EOF') EOFError: unexpected EOF

Test report

Failed tests:

• test.test_multiprocessing_spawn.test_misc

Failed subtests:

• test_large_pool - test.test_multiprocessing_forkserver.test_misc.MiscTestCase.test_large_pool
• test_large_pool - test.test_multiprocessing_spawn.test_misc.MiscTestCase.test_large_pool

Sincerely, -The Buildbot