GH-38626: [Python] Fix segfault when PyArrow is imported at shutdown #38637
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@github-actions crossbow submit -g python -g wheel |
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Revision: 16379de Submitted crossbow builds: ursacomputing/crossbow @ actions-b9246a80da
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…tdown Some C++ destructors may be called after the Python interpreter has ceased to exist.
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After merging your PR, Conbench analyzed the 5 benchmarking runs that have been run so far on merge-commit f3ec224. There were no benchmark performance regressions. 🎉 The full Conbench report has more details. It also includes information about 3 possible false positives for unstable benchmarks that are known to sometimes produce them. |
raulcd
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…38637) ### Rationale for this change Some C++ destructors may be called after the Python interpreter has ceased to exist. If such a destructor tries to call back in the Python interpreter, for example by calling `Py_DECREF`, we get a crash. ### What changes are included in this PR? Protect `OwnedRef` and `OwneRefNoGIL` destructors against decref'ing a Python object after Python finalization. ### Are these changes tested? Yes. ### Are there any user-facing changes? No. * Closes: #38626 Authored-by: Antoine Pitrou <antoine@python.org> Signed-off-by: Joris Van den Bossche <jorisvandenbossche@gmail.com>
dgreiss
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…tdown (apache#38637) ### Rationale for this change Some C++ destructors may be called after the Python interpreter has ceased to exist. If such a destructor tries to call back in the Python interpreter, for example by calling `Py_DECREF`, we get a crash. ### What changes are included in this PR? Protect `OwnedRef` and `OwneRefNoGIL` destructors against decref'ing a Python object after Python finalization. ### Are these changes tested? Yes. ### Are there any user-facing changes? No. * Closes: apache#38626 Authored-by: Antoine Pitrou <antoine@python.org> Signed-off-by: Joris Van den Bossche <jorisvandenbossche@gmail.com>
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Rationale for this change
Some C++ destructors may be called after the Python interpreter has ceased to exist.
If such a destructor tries to call back in the Python interpreter, for example by calling
Py_DECREF, we get a crash.What changes are included in this PR?
Protect
OwnedRefandOwneRefNoGILdestructors against decref'ing a Python object after Python finalization.Are these changes tested?
Yes.
Are there any user-facing changes?
No.