Closed
Description
test_signal crashed when run at the 325th test under a system load of 9.87: on a machine with 3 CPUs, that means that the machine was very busy (stressed) by other tests running in parallel.
GHA macOS:
0:07:31 load avg: 9.87 [325/467/1] test_signal process crashed (Exit code -11)
Kill <WorkerThread #3 running test=test_threading pid=12551 time=13.4 sec> process group
Fatal Python error: Segmentation fault
Kill <WorkerThread #4 running test=test_urllib2net pid=12609 time=16 ms> process group
Kill <WorkerThread #5 running test=test.test_multiprocessing_forkserver.test_processes pid=12584 time=4.7 sec> process group
Current thread 0x0000700011095000 (most recent call first):
File "/Users/runner/work/cpython/cpython/Lib/test/test_signal.py", line 1338 in set_interrupts
File "/Users/runner/work/cpython/cpython/Lib/threading.py", line 1003 in run
File "/Users/runner/work/cpython/cpython/Lib/threading.py", line 1066 in _bootstrap_inner
File "/Users/runner/work/cpython/cpython/Lib/threading.py", line 1023 in _bootstrap
Thread 0x0000000101b86600 (most recent call first):
File "/Users/runner/work/cpython/cpython/Lib/enum.py", line 1155 in __new__
File "/Users/runner/work/cpython/cpython/Lib/enum.py", line 729 in __call__
File "/Users/runner/work/cpython/cpython/Lib/signal.py", line 39 in _int_to_enum
File "/Users/runner/work/cpython/cpython/Lib/signal.py", line 57 in signal
File "/Users/runner/work/cpython/cpython/Lib/test/test_signal.py", line 1346 in cycle_handlers
File "/Users/runner/work/cpython/cpython/Lib/test/test_signal.py", line 1356 in test_stress_modifying_handlers
The test passed when re-run again alone in a fresh process in verbose mode:
0:07:31 load avg: 9.87 Re-running 1 failed tests in verbose mode in subprocesses
0:07:31 load avg: 9.87 Run 1 test in parallel using 1 worker process (timeout: 10 min, worker timeout: 15 min)
(...)
0:10:31 load avg: 1.82 running (1): test_signal (3 min)
0:10:35 load avg: 1.91 [1/1] test_signal passed (3 min 4 sec)
(...)
test_stress_modifying_handlers (test.test_signal.StressTest.test_stress_modifying_handlers) ... ok
(...)
Result: FAILURE then SUCCESS
test.pythoninfo:
os.cpu_count: 3
os.uname: posix.uname_result(sysname='Darwin', nodename='Mac-1695973693273.local', release='21.6.0', version='Darwin Kernel Version 21.6.0: Fri Sep 15 16:17:23 PDT 2023; root:xnu-8020.240.18.703.5~1/RELEASE_X86_64', machine='x86_64')
platform.platform: macOS-12.7-x86_64-i386-64bit
build: https://github.com/python/cpython/actions/runs/6348572958/job/17245469911?pr=110078