progressing iteration

Part3/09_memory/kernel/kernel.c

@@ -164,6 +164,7 @@ void print_holes(node* umem_head) {
         if (umem_head->base_register - 0x10000 != 0) {
             node *hole = add_node( hole, 0x10000, umem_head->base_register-0x10000, true, -1);
             print_list(hole, false);
+            umem_head = umem_head->next;
         }
     }
 }