Re: Device or resource busy

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

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On Mon, 27. Oct 2008, Trond Myklebust wrote:

> > 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!
> If /export/username is on a different volume from /export on the server,
> then the NFS client has to mount it as being a different volume on the
> client. 'cat /proc/fs/nfsfs/volumes' should be able to tell you if your
> server is exporting more than one volume.

/export and /export/home/username are different volumes, but I only
share /export/home/username. Also it is not only the homedirectory
itself but many subdirectories which cause this error. A sample output
from 'nfsstat -m':

-----

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

/home/username/workspace/ls5/da/text/Konzept from
fileserver:/export/home/username/workspace/ls5/da/text/Konzept
 Flags: rw,vers=3,rsize=1048576,wsize=1048576,hard,intr,proto=tcp,timeo=600,retrans=2,sec=sys,addr=fileserver

/home/username/.eclipse/org.eclipse.platform_3.3.0_1148896627 from
fileserver:/export/home/username/.eclipse/org.eclipse.platform_3.3.0_1148896627
 Flags: rw,vers=3,rsize=1048576,wsize=1048576,hard,intr,proto=tcp,timeo=600,retrans=2,sec=sys,addr=fileserver

[...]

-----

The output from /proc/fs/nfsfs/volumes looks like:

NV SERVER   PORT DEV     FSID
v3 81d91add  801 0:29    1000001009f:0
v3 81d91add  801 0:27    1000001010f:0
v3 81d91ade  801 0:30    100000100f1:0
v3 81d91add  801 0:31    1000001018b:0
v3 81d91add  801 0:26    10000010189:0
v3 81d91ade  801 0:28    100000100ef:0
v3 81d91ade  801 0:32    100000100f6:0
v3 81d91add  801 0:33    10000010192:0

- Stephan

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