mount_msdosfs -L ... [odd behaviour ?]

[dan]

Hello :-)

'mount_msdosfs -L en_US.UTF-8 /dev/da0 local/mnt/'

executed by a non root-user prints out the following

"mount_msdosfs: msdosfs_iconv: Operation not permitted"

and then stops with error 71 on console.

Later, the same command, executed by the same user, completes correctly 
if some time before the root user has succesfully issued it and 
unmounted the device.

Any clues ? Things I am probably missing ? Does Anyone else notice this 
(odd) behaviour (if it is odd) ?

Thank you

d

* FreeBSD 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Mon Jul 19 02:55:53 UTC 
2010 /usr/obj/usr/src/sys/GENERIC  i386

* http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/109024 , similar 
problem but dates 2007 / 2009 ... :-O