diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h
index fd19f8d3bce8..dc64c767fd21 100644
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -667,6 +667,7 @@ static inline void ubi_ro_mode(struct ubi_device *ubi)
 	if (!ubi->ro_mode) {
 		ubi->ro_mode = 1;
 		ubi_warn("switch to read-only mode");
+		ubi_dbg_dump_stack();
 	}
 }