On Mon, Jan 11, 2021 at 10:17:53AM +0000, Johannes Thumshirn wrote: > 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.
I've only found this by auditing the code. But the reproducer should be io_uring with fixed buffers, alternatively using the nvme target driver with a btrfs file as the backend.
