cannot read windows share

[张韡武]

Using FreeBSD 6.1, I can mount a windows share but the Chinese
characters in folder and file names look junk text to me. Charset
conversion (-E parameter of mount_smbfs) do not work at all. If I do
ls(1) to a directory that has Chinese character in its name, the process
'ls' will take about 80% CPU resource and hang there forever. Ctrl+C
cannot stop it (kill -KILL can). If I run other command that read any
file in the directory that has Chinese character in its name, that
application hangs there taking about 80% CPU resource too.

This process is better illustrated with this screenshot:
gopher://sdf.lonestar.org/I/users/weiwu/mount_chinese_smbshare.png

In the screenshot, I do have mounted the share with -E parameter which
should convert GB18030 folder names to UTF-8 but 
actually no conversion is done (see the ls | iconv which shows what it
should be looking like if the conversion is done)

Actually I have never successfully done charset conversion with
mount_smbfs, what did I do wrong?