crash when connecting to targets using nr_io_queues < num cpus

[Steve Wise]

> 
> On Thu, Sep 22, 2016 at 07:01:05PM -0500, Steve Wise wrote:
> > The fabrics module displays these errors.  But the 28 rdma connections still
> > get setup.  I'm not sure this is what we want, but it does avoid failing the
> > connect altogether...
> 
> Bo, it's not really what we want.  I think we simply need to move
> forward with the queue state machine, and use that to check if we have
> a blk-mq queue allocated for the queue.  If not we can simply skip it
> later on.
> 
> So I'd say I'll send the crash fix in blk-mq to Jens ASAP, and you'll
> look into the queue state machine for 4.9?

Sure.