Re: Unmount a busy NFS share

On Sun, Jun 18, 2006 at 08:23:57PM +0200, Bernd Schubert wrote:
No, it's definitely neither in my $PATH nor in my $LD_LIBRARY_PATH.

ld.so.conf?

No. I would have known if I put it there. It was a share exclusively for
data, no programs, no libraries.


So there are some system calls with /mothermole as argument, and then it

Where does /mothermole come from? Did you grep for mothermole
or /mothermole?

Nope. Those were the last lines of lsof's output before it hang.


hangs, as expected. Can I still somehow find out, which processes are
waiting?

Usually lsof does the trick, something very odd is going on on this system.
You could still write your own script reading all the
links /proc/{proc_ids}/fd. Actually I thought lsof would do the same.

I guess lsof does something like, but I'm not sure. Maybe I'll actually
try grep-ing through /proc/*/fd/, good idea.


It is really annoying that a NFS client can be brought into such
troubles and there is no sensible way to resolve it.

Well, with recent kernels this shouldn't happen.

I'm running 2.6.16-2 here (on the NFS client).


Being in a theoretical chemistry group and due to long term
calculations we often also can't simply reboot a system. In the past 2
years a reboot of linux clients was usually only required when our
failover server didn't taker over properly (actually it didn't mount
properly and then exported the wrong directory, for the clients with
their / from this server this caused some problems, especially since
we also enforce the fsid)

It's not really a productive system here, but it just annoys me like
hell. I wouldn't kill me to reboot, but I won't until I am really sure
there is no other way.


Greetings,
Frank

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