Index: sys/cam/cam_xpt.c =================================================================== --- sys/cam/cam_xpt.c +++ sys/cam/cam_xpt.c @@ -4024,6 +4024,7 @@ new_bus->flags = 0; new_bus->refcount = 1; /* Held until a bus_deregister event */ new_bus->generation = 0; + new_bus->parent_dev = parent; xpt_lock_buses(); sim->path_id = new_bus->path_id =