On 22/12/2020 14:40, Christoph Hellwig wrote: > I just did a very quick look, but didn't see anything (based on the > subjects) that deals with ITER_BVEC direct I/O. Is the support for that > hidden somewhere? I couldn't reproduce the problem you reported and asked for a reproducer. Probably the mail got lost somewhere. Do you have a reproducer for me that triggers the problem? fio with --ioengine=io_uring didn't do the job on my end. Thanks, Johannes