shutdown - md0 busy

[Artem Zolochevskiy <artem.zolochevskiy@gmail.com>]

hi all

I've created 2 soft-raid1 when installing etch: 
 
 /dev/md0 for /
 /dev/md1 for /home 
 
 the installation goes smoothly and success.But when I shutdown system,there
show the following output 
 
 ... ... 
 Stopping MD array md0... failed (busy) 
 ... ... 

any solution?

-- 
Artem Zolochevskiy