/filesystem hung

[Carme Torca]

Hi,

I have configure in one server nfs.client

I have:
#cat /etc/auto_master
/net -hosts -nosuid,soft
/- /etc/auto.direct -vers=3,proto=udp
#cat /etc/auto.direct
/interfases ebxb:/exp/interfases

And when I do /sbin/init.d/nfs.client stop
this filesystem doesn't umount.

killing rpc.lockd
killing rpc.statd
killing nfsd
killing rpc.mountd
starting NFS SERVER networking

starting up the rpcbind daemon
rpcbind already started, using pid: 916
Reading in /etc/exports
starting up the mount daemon
/usr/sbin/rpc.mountd
starting up the NFS daemons
/usr/sbin/nfsd 16
starting up the Status Monitor daemon
/usr/sbin/rpc.statd
starting up the Lock Manager daemon
/usr/sbin/rpc.lockd
umountall: ignoring duplicate entry
umountall: ignoring duplicate entry
umountall: ignoring duplicate entry
umountall: umount : has failed.
umountall: diagnostics from umount
umount: cannot unmount /interfases : Device busy
umount: return error 1.


#cat /etc/mnttab

...

/etc/auto.direct /interfases autofs ignore,direct,vers=3,proto=udp 0 0 1113380326


Could anyone help me? How could I umount this filesystem??

# umount /interfases
umount: cannot unmount /interfases : Device busy
umount: return error 1.

# fuser /interfases
/interfases:

# ls -l /interfases
(and now it hung)






umount: cannot unmount /interfases : Device busy

[mirco_1]

hy,

try to use :

# fuser -uc /interface

DM.

[Sudeesh]

1. fuser -cu /interfaces
2. fuser -ku /interfaces
3. umount /interfaces

If above options fail to umount, from my past experience the only solution left is a system reboot.

I was once struck with the same issue, when there was a big network failure. Even bdf command was struck. I had to reboot the production server to come out.

Sudeesh

[Warren_9]

hi,

for NFS,
# fuser ebxb:/exp/interfases

[Carme Torca]

I'm sorry, this is the result:

# fuser -cu /interfases
/interfases: fuser: could not find file system mounted at /interfases.
# fuser -ku /interfases
/interfases:

# umount /interfases
umount: cannot unmount /interfases : Device busy
umount: return error 1.
# fuser ebxb:/exp/interfases
ebxb:/exp/interfases: fuser: could not obtain file system ID for file ebxb:/exp/interfases

Any idea?
Thanks a lot of!

[Torsten.]

be care of the typing:

interfaces (watch the letter "c")

;-)

[Carme Torca]

Hi,

I'm sorry, but the correct is /interfases.

Any idea??

[mirco_1 · Accepted solution]

hy,

the ebxb:/exp/interfases is mounted ?

can you try to umount+mount ebxb:/exp/interfases

DM.

[Carme Torca]

Hi,

/exp/interfases is not mounted, but I can mount ebxb:/exp/interfases /interfases...
I don't undertand anything...

I do this, and I wait for reboot the server.

Thanks a lot of everyone.

Carmen.

[generic_1]

Cosider loading lsof on your system. I I have better luck with it finding processes.
Consider not using NFS for this very situation. Especially when building clusters.