sam song wrote: =>> Hmmm... It's timeout. How long does the command take? It's a bit weird >> because 36000s but the reported command duration is 136s. How long did >> the command take actually? > > The command did actually take 136minutes25seconds. I set the timeout in app > as 36000seconds(10-hour). Right, 136m. I wonder whether it's hitting some hard timeout limit in the kernel. Hmmmm... Does the attached patch fix your problem? Thanks. -- tejun
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index 91c7322..9675b34 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -230,7 +230,7 @@ static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq, rq->cmd_len = hdr->cmd_len; rq->cmd_type = REQ_TYPE_BLOCK_PC; - rq->timeout = (hdr->timeout * HZ) / 1000; + rq->timeout = msecs_to_jiffies(hdr->timeout); if (!rq->timeout) rq->timeout = q->sg_timeout; if (!rq->timeout) @@ -366,7 +366,7 @@ static int sg_io(struct file *file, struct request_queue *q, */ blk_execute_rq(q, bd_disk, rq, 0); - hdr->duration = ((jiffies - start_time) * 1000) / HZ; + hdr->duration = jiffies_to_msecs(jiffies - start_time); return blk_complete_sghdr_rq(rq, hdr, bio); out:
