Every time I move a file from one location to another (from eg. shared scratch location (nvme) to a cached location (mec. disk)) within shared locations in NFS I constantly get stale file handles and the client drops out. This can be critical as some VM's uses the same mounted shares as I have in general bad luck with write permissions with 9p over VM's. But it's quite annoying for my regular workstation as well as I suddenly looses access due to stale handle when a "Mover" has been running.
Solved
Minor
There are two NFS-related tunables:
First on Settings/NFS Settings there is:
Tunable (fuse_remember): 330
The value 330 means 5 1/2 minutes. The Help for this setting explains it.
and new in 6.8 on Settings/Global Share Settings there is:
Tunable (support Hard Links): Yes
Change to No, and see if issue still happens. Hard links in user shares will not be supported but the file handle should stay consistent.
This is happening because, like AFP, NFS is