[linux-cifs-client] Strange kernel messages like "CIFS VFS: strtoUCS: char2uni..." appearing

[Jeff Layton]

On Thu, 10 Jul 2008 14:04:29 +0200 (CEST)
Marko Käning <mk362 at mch.osram.de> wrote:

> Hi,
> 
> I have the tool storeBackup doing my server backups on a mounted 
> linux-hosted CIFS share.
> 
> See my fstab entry here:
> 
> ---8X---
> //server/backup  /backup-remote       cifs       
> noauto,noexec,nodev,user_xattr,username=m.kaening,credentials=/root/ADMIN/backup/credentials,uid=kaening,gid=users,dir_mode=0770,file_mode=0770    
> 0 0
> ---8X---
> 
> What I do see during the backup procedure are messages like these in my 
> syslog:
> 
> ---8X---
> kernel:  CIFS VFS: strtoUCS: char2uni of -28 returned -22
> kernel:  CIFS VFS: strtoUCS: char2uni of -28 returned -22
> kernel:  CIFS VFS: strtoUCS: char2uni of -4 returned -22
> kernel:  CIFS VFS: strtoUCS: char2uni of -4 returned -22
> kernel:  CIFS VFS: strtoUCS: char2uni of -10 returned -22
> ---8X---
> 
> Lots of them. Nevertheless the backup seems to work.
> 
> Since I am German I use umlauts in path names, which might be the cause of 
> this. But I would like to find out which files or paths are affected. How 
> to do this and how to avoid this trouble in the future??? Possibly only 
> renaming of relevant paths is a way out, I guess?!
> 
> 
> Regards,
> Marko


I suspect that the mount is has characters in filenames that are not
translateable to unicode in the default nls charset for your machine.
You may want to try mounting with an iocharset= parameter that better
matches the filenames with these characters.

-- 
Jeff Layton <jlayton at redhat.com>