Device or resource busy

["Stephan Windmüller" <stephan.windmueller-ogaGWlaKng3jEoi5djuKH7NAH6kLmebB@public.gmane.org>]

[-- Attachment #1: Type: text/plain, Size: 668 bytes --]

Hello!

On our Ubuntu (8.04) machine we mount home directories from a Solaris
server with NFS and autofs. From time to time users complain that they
are unable to delete any directories. The error message is "Device or
resource busy".

When I look with "nfsstat -m", I can see a lot of mount points for each
user, including the directory which cannot be deleted. One user had a
total of 200 mounts!

My question is: Why does NFS mount each directory seperately?

Here is an example output for a user:

/ldaphome/username from host:/export/username
 Flags: rw,vers=3,rsize=1048576,wsize=1048576,hard,intr,
 proto=tcp,timeo=600,retrans=2,sec=sys,addr=host

TIA
 Stephan

[-- Attachment #2: smime.p7s --]
[-- Type: application/x-pkcs7-signature, Size: 2321 bytes --]