SMB service hangs for Linux clients

[dhfh522]

I have several Linux clients that hang accessing the SMB shares under medium load with the error below. The shares are automounted on the client side in fstab. The client and NAS are hosted on the same switch with a bonded connection configured on both ends, and there are no network drops for other types of traffic.

[Mon May 29 00:36:20 2023] CIFS: VFS: \\Terramaster Error -11 sending data on socket to server
[Mon May 29 00:36:35 2023] CIFS: VFS: \\Terramaster sends on sock 00000000b24b9f85 stuck for 15 seconds
[Mon May 29 00:36:35 2023] CIFS: VFS: \\Terramaster Error -11 sending data on socket to server
[Mon May 29 00:52:48 2023] CIFS: VFS: \\Terramaster sends on sock 00000000638f5b66 stuck for 15 seconds
[Mon May 29 00:52:48 2023] CIFS: VFS: \\Terramaster Error -11 sending data on socket to server
[Mon May 29 00:55:30 2023] CIFS: VFS: \\Terramaster sends on sock 00000000b5b0937e stuck for 15 seconds
[Mon May 29 00:55:30 2023] CIFS: VFS: \\Terramaster Error -11 sending data on socket to server
[Mon May 29 00:55:45 2023] CIFS: VFS: \\Terramaster sends on sock 00000000b5b0937e stuck for 15 seconds
[Mon May 29 00:55:45 2023] CIFS: VFS: \\Terramaster Error -11 sending data on socket to server
[Mon May 29 01:01:57 2023] CIFS: VFS: \\Terramaster sends on sock 00000000b5a032bd stuck for 15 seconds
[Mon May 29 01:01:57 2023] CIFS: VFS: \\Terramaster Error -11 sending data on socket to server
[Mon May 29 01:02:12 2023] CIFS: VFS: \\Terramaster sends on sock 00000000b5a032bd stuck for 15 seconds
[Mon May 29 01:02:12 2023] CIFS: VFS: \\Terramaster Error -11 sending data on socket to server
[Mon May 29 01:04:57 2023] CIFS: VFS: \\Terramaster sends on sock 000000002c43d813 stuck for 15 seconds
[Mon May 29 01:04:57 2023] CIFS: VFS: \\Terramaster Error -11 sending data on socket to server
[Mon May 29 01:05:12 2023] CIFS: VFS: \\Terramaster sends on sock 000000002c43d813 stuck for 15 seconds
[Mon May 29 01:05:12 2023] CIFS: VFS: \\Terramaster Error -512 sending data on socket to server
[Mon May 29 01:29:19 2023] CIFS: VFS: \\Terramaster sends on sock 000000000bae6ab4 stuck for 15 seconds
[Mon May 29 01:29:19 2023] CIFS: VFS: \\Terramaster Error -11 sending data on socket to server
[Mon May 29 03:08:51 2023] CIFS: VFS: \\Terramaster sends on sock 000000008174da72 stuck for 15 seconds
[Mon May 29 03:08:51 2023] CIFS: VFS: \\Terramaster Error -11 sending data on socket to server
[Mon May 29 04:59:25 2023] CIFS: VFS: \\Terramaster sends on sock 000000004154bb76 stuck for 15 seconds
[Mon May 29 04:59:25 2023] CIFS: VFS: \\Terramaster Error -11 sending data on socket to server
[Mon May 29 05:09:43 2023] CIFS: VFS: \\Terramaster sends on sock 00000000de26aaae stuck for 15 seconds
[Mon May 29 05:09:43 2023] CIFS: VFS: \\Terramaster Error -11 sending data on socket to server
[Mon May 29 05:33:28 2023] CIFS: VFS: \\Terramaster sends on sock 0000000057e77740 stuck for 15 seconds
[Mon May 29 05:33:28 2023] CIFS: VFS: \\Terramaster Error -11 sending data on socket to server
[Mon May 29 05:38:41 2023] CIFS: VFS: \\Terramaster sends on sock 000000008b4a2740 stuck for 15 seconds
[Mon May 29 05:38:41 2023] CIFS: VFS: \\Terramaster Error -11 sending data on socket to server
[Mon May 29 05:48:50 2023] CIFS: VFS: \\Terramaster sends on sock 0000000099f78568 stuck for 15 seconds
[Mon May 29 05:48:50 2023] CIFS: VFS: \\Terramaster Error -11 sending data on socket to server


Client build details
Linux ubuntu2 5.15.0-72-generic #79-Ubuntu SMP Wed Apr 19 08:22:18 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

[TMroy]

Please cancel the network bonded connection and try again.

[dhfh522]

Same issue with network connection unbonded.

[TMzethar]

After such an error occurs, please collect a system log report in Technical Support-Report Issues, and then send it to the technical support mailbox by sharing the link.

[dhfh522]

@TMzethar
It doesn't allow me to email the report, it's 25MB

<[email protected]>:
552: 5.3.4 Error: message file too big

[TMzethar]

{L_BUTTON_AT}dhfh522

Hi, that's why I suggest you use the share link.