Bug 41446

Во время тестирования nvmetcli было замечено, что в un-def отсутствует поддержка  nvmet, однако в std-def присутствует.

Для un-def:

# uname -r
5.10.81-un-def-alt1

# systemctl start nvmet
Job for nvmet.service failed because the control process exited with error code.
See "systemctl status nvmet.service" and "journalctl -xe" for details.

# systemctl status nvmet
● nvmet.service - Restore NVMe kernel target configuration
     Loaded: loaded (/lib/systemd/system/nvmet.service; disabled; vendor preset: disabled)
     Active: failed (Result: exit-code) since Thu 2021-11-25 17:32:45 MSK; 28s ago
    Process: 4023 ExecStart=/usr/sbin/nvmetcli restore (code=exited, status=1/FAILURE)
   Main PID: 4023 (code=exited, status=1/FAILURE)

ноя 25 17:32:45 dhcxhsxitkmac nvmetcli[4023]:   File "/usr/sbin/nvmetcli", line 736, in main
ноя 25 17:32:45 dhcxhsxitkmac nvmetcli[4023]:     funcs[sys.argv[1]](savefile)
ноя 25 17:32:45 dhcxhsxitkmac nvmetcli[4023]:   File "/usr/sbin/nvmetcli", line 681, in restore
ноя 25 17:32:45 dhcxhsxitkmac nvmetcli[4023]:     errors = nvme.Root().restore_from_file(from_file)
ноя 25 17:32:45 dhcxhsxitkmac nvmetcli[4023]:   File "/usr/lib/python3/site-packages/nvmet/nvme.py", line 242, in __init__
ноя 25 17:32:45 dhcxhsxitkmac nvmetcli[4023]:     self.configfs_dir)
ноя 25 17:32:45 dhcxhsxitkmac nvmetcli[4023]: nvmet.nvme.CFSError: /sys/kernel/config/nvmet does not exist.  Giving up.
ноя 25 17:32:45 dhcxhsxitkmac systemd[1]: nvmet.service: Main process exited, code=exited, status=1/FAILURE
ноя 25 17:32:45 dhcxhsxitkmac systemd[1]: nvmet.service: Failed with result 'exit-code'.
ноя 25 17:32:45 dhcxhsxitkmac systemd[1]: Failed to start Restore NVMe kernel target configuration.

# nvmetcli 
/sys/kernel/config/nvmet does not exist.  Giving up.

# lsmod | grep nvme

# cat /proc/mounts | grep config
configfs /sys/kernel/config configfs rw,nosuid,nodev,noexec,relatime 0 0

# ls /lib/modules/5.10.81-un-def-alt1/kernel/drivers/ | grep nvme


Для std-def:

# uname -r
5.4.154-std-def-alt1

# ls /lib/modules/5.4.154-std-def-alt1/kernel/drivers/ | grep nvme
nvme

# modprobe nvmet

# lsmod | grep nvme
nvme_loop              16384  0
nvme_fabrics           24576  1 nvme_loop
nvmet                 102400  1 nvme_loop