Re: nvmet_rdma crash - DISCONNECT event with NULL queue

'Christoph Hellwig'
2016-11-02T15:15:40Z

On Wed, Nov 02, 2016 at 10:07:38AM -0500, Steve Wise wrote:
> I'm not sure I understand the "subsystem" concept. I never noticed before that
> any target device had the same controller ID. The target json config file is
> inserted below. There are 10 ramdisks exported over 2 ports of a cxgb4 40GE
> device and 1 port of an mlx4 RoCE device. For this test, the NVMF host
> connects to all 10 targets over 1 port of the cxgb4 device. Like this:

Yes, you have multiple subsystems. It's sort of the NVMe equivalent
of a target which can have multiple LUNs, aka Namespaces in NVMe.

Btw, I want to actually make the ctrlid global for the target instead of
per-subsystem to ease a few things, and debuggability is just one more
on the list.