Re: nfs is stupid ("getfh failed")

[Neil Brown]

On Friday September 7, [e-mail] wrote:
> Michael Rothwell wrote:
> > server# tail /var/log/messages
> > Sep  6 09:37:43 gateway rpc.mountd: authenticated mount request from
> > 192.168.1.133:933 for /export (/export)
> > Sep  6 09:37:43 gateway rpc.mountd: getfh failed: Operation not permitted
> 
> I'm seeing this message quite often with one Linux 2.4.7 system
> automounting another.  As long as A has B's filesystem mounted, all is
> ok.  Then A times out, unmounts, and later wants to remount B's
> filesystem.  Then, sometimes, I see a message much like yours.
> 
> It doesn't seem to need a reboot to cause this problem, and the fix I
> have found is to kill and restart the NFS server: /etc/init.d/nfs
> restart.
> 
> I have no idea why it happens, or why restarting nfsd or mountd fixes it.

Show me your /etc/exports....

If you export a directory and a subdirectory of that directory - both
on the same filesysem, you can get this.
If you export a directory to both an IP address (or subnet) and a
hostname (or wildcard or netgroup) this can also happen.

NeilBrown