Hi Bart On 08/08/2018 06:51 AM, Bart Van Assche wrote: > @@ -391,6 +393,9 @@ static struct request *blk_mq_get_request(struct request_queue *q, > } > } > data->hctx->queued++; > + > + blk_pm_add_request(q, rq); > + > return rq; > } The request_queue is in pm_only mode when suspended, who can reach here to do the resume ? Thanks Jianchao