gh-133467: Add TSAN suppressions for races in typeobject (gh-133534)

nascheme · web-flow · commit 8679c8d5ccf6 · 2025-05-08T04:46:23.000Z
diff --git a/Tools/tsan/suppressions_free_threading.txt b/Tools/tsan/suppressions_free_threading.txt
@@ -46,4 +46,12 @@ race:list_inplace_repeat_lock_held
 
 # PyObject_Realloc internally does memcpy which isn't atomic so can race
 # with non-locking reads. See #132070
-race:PyObject_Realloc
+race:PyObject_Realloc
+
+# gh-133467.  Some of these could be hard to trigger.
+race_top:update_one_slot
+race_top:_Py_slot_tp_getattr_hook
+race_top:slot_tp_descr_get
+race_top:type_set_name
+race_top:set_tp_bases
+race_top:type_set_bases_unlocked
