Hi everyone,

I’ve been running into a recurring issue over the past month where all my SMB shares suddenly become inaccessible, and the syslog fills with messages like this:

smbd[363134]: chdir_current_service: vfs_ChDir(/mnt/user/3D-ZFS) failed: Transport endpoint is not connected

When this happens:

• All /mnt/user/* shares break — ls /mnt/user gives:

  ls: cannot access '/mnt/user': Transport endpoint is not connected

• Docker containers and VMs that use user shares also fail.

• SMB shares disappear from the network.

This has now happened 3 times in the past month.

Here’s a snippet of the log during the event:

chdir_current_service: vfs_ChDir(/mnt/user/3D-ZFS) failed: Transport endpoint is not connected.

make_connection_snum: canonicalize_connect_path failed for service 3D-ZFS, path /mnt/user/3D-ZFS

Restart seems to solve the issue but understandably this isn't going to work for me long term.

tower-diagnostics-20251021-1003.zip

Oct 20 21:29:21 Tower shfs: shfs: ../lib/fuse.c:1402: unlink_node: Assertion `node->nlookup > 1' failed.

It's this issue:

https://forums.unraid.net/bug-reports/stable-releases/683-shfs-error-results-in-lost-mntuser-r939/

Some workarounds discussed there, mostly disable NFS if not needed or you can change everything to SMB, can also be caused by Tdarr if you use that.