Matt Faulkner

Be the change you wish to see in the world.

SMB Mount Errors found in dmesg

In the middle of an afternoon, my Jellyfin server started producing an error that typically means I have not mounted the file share on the compute cluster. I do this manually because I do not reboot very often plus I like to stay in practice. However when I opened dmesg to see what happened, here are the multitude of errors I got.

[  573.179120] CIFS: No dialect specified on mount. Default has changed to a more secure dialect, SMB2.1 or later (e.g. SMB3.1.1), from CIFS (SMB1). To use the less secure SMB1 dialect to access old servers which do not support SMB3.1.1 (or even SMB3 or SMB2.1) specify vers=1.0 on mount.
[  573.507953] CIFS: VFS: parse_server_interfaces: malformed interface info

[65242.528585] CIFS: VFS: Use of the less secure dialect vers=1.0 is not recommended unless required for access to very old servers
[65242.529501] FS-Cache: Duplicate cookie detected

[65242.529596] FS-Cache: N-key=[8] '020001bdc0a80002'
[65243.228867] CIFS: VFS: cifs_mount failed w/return code = -112

Trying to mount the share as an NFS volume seemed to cause this login failure that I was unable to pinpoint. I was using the same service account and the NFS was properly configured on the TrueNAS Scale side. At this point, I have also rebooted both my compute and my storage node.

[ 2107.847210] CIFS: Status code returned 0xc000006d STATUS_LOGON_FAILURE
[ 2107.847226] CIFS: VFS: \\REDACTED2 Send error in SessSetup = -13
[ 2107.848221] CIFS: VFS: cifs_mount failed w/return code = -13

#This was the final error message I encountered before I opted to take the update path.

[ 2441.265093] CIFS: VFS: cifs_mount failed w/return code = -95
[ 2501.643485] CIFS: Attempting to mount //REDACTED
[64768.297389] CIFS: VFS: \\REDACTED has not responded in 180 seconds. Reconnecting...
[65177.473781] CIFS: Attempting to mount //REDACTED
[65177.477091] CIFS: VFS: cifs_mount failed w/return code = -2

Resolution Path

For the first time since deployment I had to perform an update to the TrueNAS Scale OS and the ZFS pool itself. After that, it worked as expected.

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