On 28/03/2019 18:52, Jens Axboe wrote: > On 3/28/19 11:48 AM, Christoph Hellwig wrote: >> On Thu, Mar 28, 2019 at 05:31:29PM +0100, Johannes Thumshirn wrote: >>> In all cases I could reproduce it I had nsegs == 2 and >>> rq->nr_phys_segments == 1 (rq->bio->bi_phys_segments == 1). >> >> And all cases are pass through as well? >> >> Can you check if this still shows up with the series from Ming which >> switches the passthrough requests to use multi-page biovecs aswell >> and gets rid of the hairy code you quote below. Good idea, thanks. > Since I already merged that in my 5.2 but didn't push it out yet, I've > made a temporary branch available if you want to test through that: > > git://git.kernel.dk/linux-block 5.2-tmp Awesome thanks. -- Johannes Thumshirn SUSE Labs Filesystems jthumshirn@xxxxxxx +49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Mary Higgins, Sri Rasiah HRB 21284 (AG Nürnberg) Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850