diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index 3574379..572df7d 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -730,6 +730,7 @@ register_lock_class(struct lockdep_map *
 		printk("INFO: trying to register non-static key.\n");
 		printk("the code is fine but needs lockdep annotation.\n");
 		printk("turning off the locking correctness validator.\n");
+		printk("key: %p, name: %s\n", lock->key, lock->name);
 		dump_stack();
 
 		return NULL;