Unable to reconnect namespace via NVMe/TCP

[Anton Gavriliuk]

Hi

There are NVMe/TCP target and initiator servers, both running on
RHEL10 (6.12.0-55.25.1.el10_0.x86_64)

NVMe/TCP target exports single NVMe SSD

      "namespaces": [
        {
          "device": {
            "nguid": "01000000-0000-0000-8ce3-8ee3064aa4f2",
            "path": "/dev/nvme0n1"
          },
          "enable": 1,
          "nsid": 1
        }
      ],

If NVMe/TCP target is not available, initiator tries to reconnect
every 10 seconds

[ 2586.071048] nvme nvme9: failed to connect socket: -111
[ 2586.071403] nvme nvme9: Failed reconnect attempt 16/-1
[ 2586.071565] nvme nvme9: Reconnecting in 10 seconds...
[ 2596.310921] nvme nvme9: failed to connect socket: -111
[ 2596.311186] nvme nvme9: Failed reconnect attempt 17/-1
[ 2596.311349] nvme nvme9: Reconnecting in 10 seconds...
[ 2606.550772] nvme nvme9: failed to connect socket: -111
[ 2606.551252] nvme nvme9: Failed reconnect attempt 18/-1
[ 2606.551592] nvme nvme9: Reconnecting in 10 seconds...

when NVMe/TCP target become available, initiator failed reconnect the namespace

[ 2606.551592] nvme nvme9: Reconnecting in 10 seconds...
[ 2616.793080] nvme nvme9: creating 16 I/O queues.
[ 2616.829881] nvme nvme9: mapped 16/0/0 default/read/poll queues.
[ 2616.833685] nvme nvme9: Successfully reconnected (attempt 19/-1)
[ 2616.834446] nvme nvme9: identifiers changed for nsid 1
[ 2616.835618] block nvme9n1: no usable path - requeuing I/O
[ 2616.856602] block nvme9n1: no available path - failing I/O
[ 2616.856811] block nvme9n1: no available path - failing I/O

and there is no nvme9n1 namespace in the "nvme list" output.

Anton