CIFS / SMB: Resource temporarily unavailable

[Jarsky]

Hi team,

 

Just checking if something has changed with Unraid in regards to SMB/CIFS versions? 

UnRaid Version: 6.12.10

 

I've noticed just today that every single one of my VM's which is mounted the Samba shares is getting the error:

 

$ df -h
df: /mnt/share: Resource temporarily unavailable

 

These are mounts on physically connected devices as well as VM's hosted on the UnRAID server itself. 

 

I have not changed configus on any of my machines. Theyre all Ubuntu 22.04 Servers. 

They're configured to use SMB v3; but have also tried changing some to auto which I believe is connecting at SMB v3.1.1

Still the same error. 

 

This isnt affecting NFS shares theyre mounting fine. 

 

The mounts are still accessible; however theyre sporadic. 

The problem im seeing is that the flow is getting disconnected so writes are failing for example. 

Apps are also reporting unknown disk size as the VMs arent properly calculating disk free

 

Seeing these errors in the machines affected (locally hosted VM's as well as Network attached servers)
 

Quote

Apr 20 21:15:44 mediabox kernel: [  562.854146] CIFS: VFS: \\tower.local.lan Error -104 sending data on socket to server
Apr 20 21:15:44 mediabox kernel: [  563.121947] CIFS: VFS: \\tower.local.lan Error -104 sending data on socket to server
Apr 20 21:15:44 mediabox kernel: [  563.144538] CIFS: VFS: \\tower.local.lan Error -104 sending data on socket to server
Apr 20 21:15:44 mediabox kernel: [  563.594455] CIFS: VFS: \\tower.local.lan Error -104 sending data on socket to server
Apr 20 21:15:45 mediabox kernel: [  563.640813] CIFS: VFS: \\tower.local.lan trying to return 31 credits to old session
Apr 20 21:15:45 mediabox kernel: [  563.640842] CIFS: VFS: \\tower.local.lan trying to return 24 credits to old session
Apr 20 21:15:45 mediabox kernel: [  563.671134] CIFS: VFS: \\tower.local.lan Error -104 sending data on socket to server
Apr 20 21:15:47 mediabox kernel: [  566.189546] CIFS: VFS: \\tower.local.lan Error -104 sending data on socket to server
Apr 20 21:15:47 mediabox kernel: [  566.476989] CIFS: VFS: \\tower.local.lan trying to return 28 credits to old session
Apr 20 21:15:47 mediabox kernel: [  566.591810] CIFS: VFS: \\tower.local.lan Error -104 sending data on socket to server
Apr 20 21:15:48 mediabox kernel: [  567.205310] CIFS: VFS: \\tower.local.lan Error -104 sending data on socket to server
Apr 20 21:15:48 mediabox kernel: [  567.310978] CIFS: VFS: Send error in read = -11
Apr 20 21:15:48 mediabox kernel: [  567.311129] CIFS: VFS: \\tower.local.lan trying to return 63 credits to old session
Apr 20 21:15:48 mediabox kernel: [  567.352485] CIFS: VFS: Send error in read = -11
Apr 20 21:15:48 mediabox kernel: [  567.352485] CIFS: VFS: Send error in read = -11
Apr 20 21:15:48 mediabox kernel: [  567.352509] CIFS: VFS: Send error in read = -11
Apr 20 21:15:48 mediabox kernel: [  567.352746] CIFS: VFS: \\tower.local.lan trying to return 30 credits to old session
Apr 20 21:15:48 mediabox kernel: [  567.374756] CIFS: VFS: \\tower.local.lan Error -104 sending data on socket to server
Apr 20 21:15:48 mediabox kernel: [  567.375142] CIFS: VFS: Send error in read = -11
Apr 20 21:15:48 mediabox kernel: [  567.375143] CIFS: VFS: Send error in read = -104
Apr 20 21:15:48 mediabox kernel: [  567.375171] CIFS: VFS: Send error in read = -11
Apr 20 21:15:48 mediabox kernel: [  567.375197] CIFS: VFS: Send error in read = -11
Apr 20 21:15:48 mediabox kernel: [  567.385900] CIFS: VFS: \\tower.local.lan Error -32 sending data on socket to server
Apr 20 21:15:48 mediabox kernel: [  567.386218] CIFS: VFS: Send error in read = -32
Apr 20 21:15:48 mediabox kernel: [  567.386219] CIFS: VFS: Send error in read = -11
Apr 20 21:15:48 mediabox kernel: [  567.487130] CIFS: VFS: \\tower.local.lan Error -104 sending data on socket to server
Apr 20 21:15:48 mediabox kernel: [  567.553299] CIFS: VFS: \\tower.local.lan Error -104 sending data on socket to server
Apr 20 21:15:48 mediabox kernel: [  567.564605] CIFS: VFS: \\tower.local.lan Error -104 sending data on socket to server
Apr 20 21:15:49 mediabox kernel: [  567.717132] CIFS: VFS: \\tower.local.lan Error -104 sending data on socket to server
Apr 20 21:15:49 mediabox kernel: [  567.738113] CIFS: VFS: \\tower.local.lan Error -104 sending data on socket to server

 

jarskynas-diagnostics-20240420-2326.zip

Edited April 20 by Jarsky

[Jarsky]

Nevermind. I was on 6.12.9 when this started. 

Upgraded to 6.12.10 yesterday. Unmounted and Remounted the VM's and other Servers today, and its all back to normal. 

 

I guess it was an issue with the fixes put in for SMB on 6.12.9? 

https://docs.unraid.net/unraid-os/release-notes/6.12.10/