diff --git a/mm/memblock.c b/mm/memblock.c
index 87108e77e476..95ce68c6da8a 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -566,6 +566,9 @@ repeat:
 		 * area, insert that portion.
 		 */
 		if (rbase > base) {
+#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
+			WARN_ON(nid != memblock_get_region_node(rgn));
+#endif
 			nr_new++;
 			if (insert)
 				memblock_insert_region(type, i++, base,