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test_perf_profiler: test_trampoline_works_with_forks() failed on Address Sanitizer CI #109580
Description
Bug report
test_trampoline_works_with_forks (test.test_perf_profiler.TestPerfTrampoline.test_trampoline_works_with_forks) ... FAIL
FAIL: test_trampoline_works_with_forks (test.test_perf_profiler.TestPerfTrampoline.test_trampoline_works_with_forks)
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Traceback (most recent call last):
File "/home/runner/work/cpython/cpython/Lib/test/test_perf_profiler.py", line 123, in test_trampoline_works_with_forks
self.assertEqual(process.returncode, 0)
AssertionError: 139 != 0
It looks like a SIGSEGV crash (128 + SIGSEGV = 139 on Linux).
build: https://github.com/python/cpython/actions/runs/6237694188/job/16931875912?pr=108965
Passed when re-run:
0:09:17 load avg: 4.36 Re-running 1 failed tests in verbose mode in subprocesses
0:09:17 load avg: 4.36 Run 1 test in parallel using 1 worker process (timeout: 20 min, worker timeout: 25 min)
0:09:17 load avg: 4.36 [1/1] test_perf_profiler passed
Re-running test_perf_profiler in verbose mode (matching: test_trampoline_works_with_forks)
test_trampoline_works_with_forks (test.test_perf_profiler.TestPerfTrampoline.test_trampoline_works_with_forks) ... ok
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Ran 1 test in 0.083s
OK
cc @pablogsal
Activity
vstinner commentedon Sep 19, 2023
I cannot reproduce the issue locally on Fedora 38.
One option is to skip the test if Python is built with ASAN, as already done on TestPerfProfiler test case: skip the whole file.
pablogsal commentedon Sep 19, 2023
I'm fine skipping the file if is built with ASAN.
pythongh-109580: Skip test_perf_profiler on ASAN build
vstinner commentedon Sep 19, 2023
@pablogsal:
Ok, I created PR #109584 for that.
I don't have the bandwidth to investigate why Python built with ASAN does crash on this Ubuntu Address Sanitizer job, but it doesn't when I run the test locally on my Fedora 38.
gh-109580: Skip test_perf_profiler on ASAN build (#109584)
pythongh-109580: Skip test_perf_profiler on ASAN build (pythonGH-109584)
pythongh-109580: Skip test_perf_profiler on ASAN build (python#109584)
[3.12] gh-109580: Skip test_perf_profiler on ASAN build (GH-109584) (#…