diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index ab1998adb0a9681c4618b42e182b0151337c695a..4fc5c32422b39db0e509ea35e675b3852db895eb 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -769,6 +769,7 @@ static bool rtree_next_node(struct memory_bitmap *bm)
 	if (&bm->cur.node->list != &bm->cur.zone->leaves) {
 		bm->cur.node_pfn += BM_BITS_PER_BLOCK;
 		bm->cur.node_bit  = 0;
+		touch_softlockup_watchdog();
 		return true;
 	}