--- a31a8cd67570384be6b622c8e643c5f46a79d566
+++ 3c6d14132ff091a19fc3706402972eae6cc62075
@@ -49,6 +49,7 @@ static inline void callchain_init(struct
 	INIT_LIST_HEAD(&node->children);
 	INIT_LIST_HEAD(&node->val);
 
+	node->children_hit = 0;
 	node->parent = NULL;
 	node->hit = 0;
 }