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gh-137007: Track executor before any possible deallocations (GH-137016)

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Ken Jin 2025-12-11 05:09:56 +08:00 • committed by GitHub
parent 26757d1351
commit 97e19014dd
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2 changed files with 5 additions and 1 deletions
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Misc/NEWS.d/next/Core_and_Builtins/2025-07-22-16-20-06.gh-issue-137007.1oPvvK.rst Normal file
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@ -0,0 +1 @@
Fix a bug during JIT compilation failure which caused garbage collection debug assertions to fail.

5
Python/optimizer.c
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@ -1310,6 +1310,10 @@ make_executor_from_uops(_PyUOpInstruction *buffer, int length, const _PyBloomFil
assert(next_exit == -1);
assert(dest == executor->trace);
assert(dest->opcode == _START_EXECUTOR);
// Note: we MUST track it here before any Py_DECREF(executor) or
// linking of executor. Otherwise, the GC tries to untrack a
// still untracked object during dealloc.
_PyObject_GC_TRACK(executor);
_Py_ExecutorInit(executor, dependencies);
#ifdef Py_DEBUG
char *python_lltrace = Py_GETENV("PYTHON_LLTRACE");
@ -1338,7 +1342,6 @@ make_executor_from_uops(_PyUOpInstruction *buffer, int length, const _PyBloomFil
return NULL;
}
#endif
_PyObject_GC_TRACK(executor);
return executor;
}