Repository navigation
Segmentation fault under Python 3.9.12 #102329
Description
Crash report
The following code snippet crashes with core dumped:
import unittest
from test import support
import sys
class Tests(unittest.TestCase):
def test_bug(self):
modules = set()
for name, module in sys.modules.items():
modules.add(module)
new_tuples = tuple(modules)
new_set = set(new_tuples)
print('')
print('sys.modules:')
print('')
import pprint
pprint.pprint(modules)
print('')
print('len(sys.modules):', len(modules))
def test_main():
support.run_unittest(Tests)
if __name__ == '__main__':
test_main()Error messages
(<object object at 0x7f0fe7b6d6a0>, <NULL>, <NULL>, <NULL>, <NULL>, <NULL>, <NULL>, <NULL>, <NULL>, <NULL>)
Segmentation fault (core dumped)
Your environment
- CPython versions tested on: Python 3.9.12
- Operating system and architecture: Linux hx-rs4810gs 5.15.0-57-generic 63~20.04.1-Ubuntu SMP Wed Nov 30 13:40:16 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Activity
zware commentedon Feb 28, 2023
I can't reproduce this on
Linux 6.0.12-76060006-generic #202212290932~1674139725~22.04~ca93ccf SMP PREEMPT_DYNAMIC Thu J x86_64with Python 3.9.14. Can you reproduce with any other version?YaoJiayi commentedon Feb 28, 2023
I've just tried Python 3.8.16. It has the same error message.
terryjreedy commentedon Feb 28, 2023
Please reduce the code to the minimum needed to get a crash and then indicate which line it crashes on.
YaoJiayi commentedon Feb 28, 2023
It seems that "from test import support" produces the crash.
zware commentedon Feb 28, 2023
Is that your own
test.supportmodule, or the private helper from the standard library test suite?sobolevn commentedon Feb 28, 2023
I cannot reproduce this crash on macos with python 3.9.15, 3.10.2, and 3.12-dev :(