https://github.com/python/cpython/commit/97e19014ddc652beae58e7eceb591f5d65a875e6
commit: 97e19014ddc652beae58e7eceb591f5d65a875e6
branch: main
author: Ken Jin <[email protected]>
committer: Fidget-Spinner <[email protected]>
date: 2025-12-11T05:09:56+08:00
summary:
gh-137007: Track executor before any possible deallocations (GH-137016)
files:
A
Misc/NEWS.d/next/Core_and_Builtins/2025-07-22-16-20-06.gh-issue-137007.1oPvvK.rst
M Python/optimizer.c
diff --git
a/Misc/NEWS.d/next/Core_and_Builtins/2025-07-22-16-20-06.gh-issue-137007.1oPvvK.rst
b/Misc/NEWS.d/next/Core_and_Builtins/2025-07-22-16-20-06.gh-issue-137007.1oPvvK.rst
new file mode 100644
index 00000000000000..cb25fd10c0bd2c
--- /dev/null
+++
b/Misc/NEWS.d/next/Core_and_Builtins/2025-07-22-16-20-06.gh-issue-137007.1oPvvK.rst
@@ -0,0 +1 @@
+Fix a bug during JIT compilation failure which caused garbage collection debug
assertions to fail.
diff --git a/Python/optimizer.c b/Python/optimizer.c
index 7fe914a7a426b9..b693581d7318bf 100644
--- a/Python/optimizer.c
+++ b/Python/optimizer.c
@@ -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;
}
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