Just got a confirmation that this patch set, when applied to the 4.14 branch, fixes the issue. On Mon, Dec 18, 2017 at 3:22 PM, Jens Axboe <axboe@xxxxxxxxx> wrote: > On 12/18/2017 12:40 AM, Ming Lei wrote: >> Hi Jens, >> >> The 1st patch makes sure that passthrough IO won't enter .make_request_fn. >> >> The 2nd one fixes blk_rq_append_bio(), which is from your post with >> small change on failure handling. > > Thanks Ming, queued up. > > -- > Jens Axboe >