Merge branch 'main' into gh-137400-now-with-fewer-crashes

python · colesbury · Aug 13, 2025 · Aug 6, 2025 · Aug 7, 2025 · Aug 7, 2025
commit a1d8760f3613f05042404d33702f834520a329ce
diff --git a/Lib/test/test_free_threading/test_monitoring.py b/Lib/test/test_free_threading/test_monitoring.py
@@ -220,6 +220,39 @@ def during_threads(self):
         self.set = not self.set
 
 
+class SetProfileAllMultiThreaded(TestCase):
+    def test_profile_all_threads(self):
+        done = threading.Event()
+
+        def func():
+            pass
+
+        def bg_thread():
+            while not done.is_set():
+                func()
+                func()
+                func()
+                func()
+                func()
+
+        def my_profile(frame, event, arg):
+            return None
+
+        bg_threads = []
+        for i in range(10):
+            t = threading.Thread(target=bg_thread)
+            t.start()
+            bg_threads.append(t)
+
+        for i in range(100):
+            threading.setprofile_all_threads(my_profile)
+            threading.setprofile_all_threads(None)
+
+        done.set()
+        for t in bg_threads:
+            t.join()
+
+
 class TraceBuf:
     def __init__(self):
         self.traces = []