Unexpected issues with 2 NVME initiators using the same target

[Sagi Grimberg]

Hi Robert,

> I ran into this with 4.9.32 when I rebooted the target. I tested
> 4.12-rc6 and this particular error seems to have been resolved, but I
> now get a new one on the initiator. This one doesn't seem as
> impactful.
> 
> [Mon Jun 19 11:17:20 2017] mlx5_0:dump_cqe:275:(pid 0): dump error cqe
> [Mon Jun 19 11:17:20 2017] 00000000 00000000 00000000 00000000
> [Mon Jun 19 11:17:20 2017] 00000000 00000000 00000000 00000000
> [Mon Jun 19 11:17:20 2017] 00000000 00000000 00000000 00000000
> [Mon Jun 19 11:17:20 2017] 00000000 93005204 0a0001bd 45c8e0d2

Max, Leon,

Care to parse this syndrome for us? ;)