openwrt/package/busybox/patches/001-init_avoid_loop_opening_tty.patch

--- a/init/init.c
+++ b/init/init.c
@@ -451,8 +451,11 @@ static void run_actions(int action_type)
 			/* Only run stuff with pid == 0. If pid != 0,
 			 * it is already running
 			 */
-			if (a->pid == 0)
+			if (a->pid == 0) {
+				if (a->terminal && access(a->terminal, R_OK | W_OK))
+					continue;
 				a->pid = run(a);
+			}
 		}
 	}
 }