On Thu, Jul 22, 2021 at 03:06:09PM +0200, Christoph Hellwig wrote: > On Thu, Jul 22, 2021 at 05:52:45PM +0800, Ming Lei wrote: > and nvme rdma driver can allocate > > + * and submit requests on specified hctx via > > + * blk_mq_alloc_request_hctx > > Why does that matter for this setting? blk_mq_alloc_request_hctx() has been broken for long time, which can only work if the hctx isn't driven by non-managed irq. Thanks, Ming