nvmeof rdma regression issue on 4.14.0-rc1 (or maybe mlx4?)

[Sagi Grimberg]

>> Lets take this one step at a time, starting with this issue.
>>
>> First, there is a reason why a simple create_ctrl fails, can we isolate
>> exactly which call fails? Was something else going on that might have
>> made the simple create_ctrl fail?
>>
>> We don't see any "rdma_resolve_addr failed" or "failed to connect queue"
>> messages but we do see "creating I/O queues" which means that we either
>> failed at IO tagset allocation or initializing connect_q.
>>
>> We have a missing error code assignment so can you try the following 
>> patch:
> 
> Hi Sagi
> Sorry for the late response, here is the log with your patch, let me 
> know if you need more test.

Hi Yi,

I was referring to the bug you reported on a simple create_ctrl failed:
https://pastebin.com/7z0XSGSd

Does it reproduce?