gh-122320: Add _testinternalcapi.is_dict_version_overflowed

Lib/test/test_opcache.py

@@ -533,6 +533,7 @@ def assert_races_do_not_crash(
             # Reset:
             if check_items:
                 for item in items:
+                    _testinternalcapi.reset_version(item.__globals__) #  Reset version to avoid overflow
                     item.__code__ = item.__code__.replace()
             else:
                 read.__code__ = read.__code__.replace()

Modules/_testinternalcapi.c

@@ -2034,6 +2034,29 @@ gh_119213_getargs_impl(PyObject *module, PyObject *spam)
     return Py_NewRef(spam);
 }
 
+/*[clinic input]
+reset_version
+
+    dict: object(type="PyDictObject *", subclass_of="&PyDict_Type")
+
+[clinic start generated code]*/
+
+static PyObject *
+reset_version_impl(PyObject *module, PyDictObject *dict)
+/*[clinic end generated code: output=9ba372a8b7ed5566 input=212f6cc66caef7af]*/
+{
+    PyInterpreterState *interp = _PyInterpreterState_GET();
+    PyDictKeysObject *dictkeys = dict->ma_keys;
+    if (dictkeys->dk_version != 0) {
+        Py_RETURN_NONE;
+    }
+    if (interp->dict_state.next_keys_version == 0) {
+        Py_RETURN_NONE;
+    }
+    interp->dict_state.next_keys_version = 1;
+    dictkeys->dk_version = 1;
+    Py_RETURN_NONE;
+}
 
 static PyMethodDef module_functions[] = {
     {"get_configs", get_configs, METH_NOARGS},
@@ -2129,6 +2152,7 @@ static PyMethodDef module_functions[] = {
     {"uop_symbols_test", _Py_uop_symbols_test, METH_NOARGS},
 #endif
     GH_119213_GETARGS_METHODDEF
+    RESET_VERSION_METHODDEF
     {NULL, NULL} /* sentinel */
 };