Strange behaviour of NFS.

["Egor Tur" <worldeb@ukr.net>]

Hi folk.

Sometimes I see messages when use NFS:
nfs_statfs: statfs error = 5
nfs: server pupkin not responding, timed out
nfsd: last server has exited
nfsd: unexporting all filesystems

When I try copy any file to NFS-machine I see:
$ cp qqq.tar.gz /export/nfs/temp/.
cp: writing `/export/nfs/temp/./qqq.tar.gz': Input/output error
cp: closing `/export/nfs/temp/./qqq.tar.gz': Input/output error

I try uncompress an untar it (or other) file ithis correctly.
But I try use it I see that this file copy only partly.

On NFS-client (vasja)
$ grep "pupkin" /etc/fstab
pupkin:/nfs                /export/nfs        nfs defaults,rsize=8192,wsize=8192,soft,intr,bg     0       0

>From NFS-server (pupkin):
$ cat /etc/exports
/nfs       vasja(rw)
#/nfs     vasja(rw,no_root_squash)

Anyone have any ideas?
Thanx.