Volume mount failed with the error event "rpc error: code = Internal desc = generate path prefix failed, error: portal [xxx] is not a valid ip address".

[QiuzhuoYang]

In the CSI v4.8.0 version, if the parameters.portals parameter in the backend configuration file is configured in the domain name format, the volume mount will be failed.

[cabbetlong]

In CSI v4.8.0, a bug exists when using the NFS protocol where the CSI incorrectly treats a domain name as an IP address during validation. This always results in validation failure, ultimately causing NFS mounts to fail when using domain names.
This issue will be fixed in the next version v4.9.0. If you need to use domain names with NFS protocol currently, please use v4.7.0 instead.