Mixtral had something in that vicinity: Disable NFSv4.2 features: Although you mentioned that your mounts are read-only, it's still possible that some NFSv4.2

Mixtral had something in that vicinity: Disable NFSv4.2 features: Although you mentioned that your mounts are read-only, it's still possible that some NFSv4.2 features might be causing issues. You can try disabling some of these features by adding the following options to your NFS mount command: vers=4.1,minorversion=1,proto=tcp,sec=sys This will force the client to use NFSv4.1 with TCP and system authentication.