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Title
CIFS VFS: ioctl error in smb2_get_dfs_refer -
Description
When mounting a CIFS share, CIFS share works. However, CIFS VFS: ioctl error in smb2_get_dfs_refer rc=-5 error appears in the log when DFS (Distributed File System) is not in use. -
Resolution
The smb2_get_dfs_refer can be considered a harmless error/warning message as the DFS feature is disabled. The CIFS kernel code will try to make use of the DFS feature or query about the DFS, in the event that it can’t be reached or queried or if the feature is not enabled then it will print such an error message. However, it won't cause anything to break.