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

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On 10/16/2017 06:21 PM, Sagi Grimberg wrote:
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?

yes, this issue was reproduced during "git bisect" with below patch

commit 31fdf18401703df246e20fc0382ed3594e6cf8d8
Author: Sagi Grimberg <sagi@xxxxxxxxxxx>
Date:   Mon Aug 28 21:40:06 2017 +0200

    nvme-rdma: reuse configure/destroy_admin_queue

    No need to open-code it.

    Signed-off-by: Sagi Grimberg <sagi@xxxxxxxxxxx>
    Signed-off-by: Christoph Hellwig <hch@xxxxxx>

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