New GitHub issue #115891 from smontanaro:<br>
<hr>
<pre>
# Bug report
### Bug description:
`test_cpai` is failing reliably for me on Ubuntu 22.04 (Intel) and MacOS Sonoma (M1 Pro). Repeat with:
```bash
git clean -fdx
./configure
make
./python -E -m test --fast-ci --timeout= test_capi
# test_capi succeeds
git clean -fdx
./configure --disable-gil
make
./python -E -m test --fast-ci --timeout= test_capi
# test_capi fails
```
Output:
```
FAIL: test_pyobject_freed_is_freed (test.test_capi.test_mem.PyMemDebugTests.test_pyobject_freed_is_freed)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Users/skip/src/python/cpython/Lib/test/test_capi/test_mem.py", line 113, in test_pyobject_freed_is_freed
self.check_pyobject_is_freed('check_pyobject_freed_is_freed')
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/skip/src/python/cpython/Lib/test/test_capi/test_mem.py", line 97, in check_pyobject_is_freed
assert_python_ok(
~~~~~~~~~~~~~~~~^
'-c', code,
^^^^^^^^^^^
PYTHONMALLOC=self.PYTHONMALLOC,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
MALLOC_CONF="junk:false",
^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "/Users/skip/src/python/cpython/Lib/test/support/script_helper.py", line 180, in assert_python_ok
return _assert_python(True, *args, **env_vars)
~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/skip/src/python/cpython/Lib/test/support/script_helper.py", line 165, in _assert_python
res.fail(cmd_line)
~~~~~~~~^^^^^^^^^^
File "/Users/skip/src/python/cpython/Lib/test/support/script_helper.py", line 75, in fail
raise AssertionError("Process return code is %d\n"
...<13 lines>...
err))
AssertionError: Process return code is 1
command line: ['/Users/skip/src/python/cpython/python.exe', '-X', 'faulthandler', '-c', '\nimport gc, os, sys, _testinternalcapi\n# Disable the GC to avoid crash on GC collection\ngc.disable()\n_testinternalcapi.check_pyobject_freed_is_freed()\n# Exit immediately to avoid a crash while deallocating\n# the invalid object\nos._exit(0)\n']
stdout:
---
---
stderr:
---
Traceback (most recent call last):
File "<string>", line 5, in <module>
_testinternalcapi.check_pyobject_freed_is_freed()
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
AssertionError: object is not seen as freed
---
```
I tried this on both MacOS Sonoma (14.3) and Dell (Intel) Ubuntu 22.04. Results were the same.
### CPython versions tested on:
CPython main branch
### Operating systems tested on:
Linux, macOS
</pre>
<hr>
<a href="https://github.com/python/cpython/issues/115891">View on GitHub</a>
<p>Labels: type-bug</p>
<p>Assignee: </p>