[PATCH blktests v2 0/3] Test different queue counts

[Shinichiro Kawasaki]

On Mar 22, 2023 / 11:16, Daniel Wagner wrote:
> Setup different queues, e.g. read and poll queues.
> 
> There is still the problem that _require_nvme_trtype_is_fabrics also includes
> the loop transport which has no support for different queue types.
> 
> See also https://lore.kernel.org/linux-nvme/20230322002350.4038048-1-kbusch@meta.com/

Hi Daniel, thanks for the patches. The new test case catches some bugs. Looks
valuable.

I ran the test case using various nvme_trtype on kernel v6.2 and v6.3-rc3, and
observed hangs. I applied the 3rd patch in the link above on top of v6.3-rc3 and
confirmed the hang disappears. I would like to wait for the kernel fix patch
delivered to upstream, before adding this test case to blktests master.

When I ran the test case without setting nvme_trtype, kernel reported messages
below:

[  199.621431][ T1001] nvme_fabrics: invalid parameter 'nr_write_queues=%d'
[  201.271200][ T1030] nvme_fabrics: invalid parameter 'nr_write_queues=%d'
[  201.272155][ T1030] nvme_fabrics: invalid parameter 'nr_poll_queues=%d'

Is it useful to run the test case with default nvme_trtype=loop?

-- 
Shin'ichiro Kawasaki