crash when connecting to targets using nr_io_queues < num cpus

[Sagi Grimberg]

>>> I think Ming sent a patch for this some time ago... Not sure what
>>> happened with it though...
>>
>> This?
>>
>> http://lists.infradead.org/pipermail/linux-nvme/2016-June/004884.html
>
> This is indeed the same problem.  I don't have the knoggin to propose a fix.
> Sagi/Christoph, do you have any ideas on this?  I'm willing to take and idea
> forward and test it out of you all have any clever ideas.  We should at least
> prevent setting nr_io_queues to a value that will crash immediately when nvmf is
> used...

I think that Ming and Keith had a few suggestions.

++ Keith.