the nfs-utils's package nfs startup script /etc/rc.d/init.d/nfs stops nfs
in the wrong way

according to this email from neil brown <neilb.edu.au>
http://www.geocrawler.com/lists/3/SourceForge/789/0/4076633/
exporfts -au must be run AFTER nfsd is stopped or stale mount problems will
occur


But /etc/rc.d/init.d/nfs does this:
stop)
        # Stop daemons.
        action "Shutting down NFS services: " /usr/sbin/exportfs -au
	echo -n "Shutting down NFS mountd: "
        killproc rpc.mountd
        echo
        echo -n "Shutting down NFS daemon: "
  	killproc nfsd   
	echo
        echo -n "Shutting down NFS quotas: "
	killproc rpc.rquotad
        echo
        rm -f /var/lock/subsys/nfs
	;;

so it is doing them in the wrong order.
an easy fix but w/o it could screw up people who have nfs servers that need
to be rebooted when their clients still have active links.