On 26 Aug 2022, at 20:52, Trond Myklebust wrote: > Can we please try to solve the real problem first? The real problem is > not that user permissions change every hour on the server. > > POSIX normally only expects changes to happen to your group membership > when you log in. The problem here is that the NFS server is updating > its rules concerning your group membership at some random time after > your log in on the NFS client. > > So how about if we just do our best to approximate the POSIX rules, and > promise to revalidate your cached file access permissions at least once > after you log in? Then we can let the NFS server do whatever the hell > it wants to do after that. > IOW: If the sysadmin changes the group membership for the user, then > the user can remedy the problem by logging out and then logging back in > again, just like they do for local filesystems. This goes a long way toward fixing things up for us, I appreciate it, and hope to see it merged. The version on your testing branch (d84b059f) can have my: Reviewed-by: Benjamin Coddington <bcodding@xxxxxxxxxx> Tested-by: Benjamin Coddington <bcodding@xxxxxxxxxx> Ben