Hi Jens, On 10/11/2018 09:58 AM, Jens Axboe wrote: > Convert from the old request_fn style driver to blk-mq. I tested this on PS3 applied to v4.19-rc7, and on boot it either gets a deadlock message or becomes unstable with various other block related error messages. For what its worth, I put an image of the deadlock message here: https://storage.googleapis.com/public-tmp-files/blk-deadlock.jpg -Geoff