Hi, I am having a problem with NFS and I thought that you could help me or you could steer me to someone who might be able to. The problem is this: An NFS Server mounts an image on a local directory, containing a XEN virtual machine configuration file and a XEN image. An NFS Client computer sees the directory that was mounted remotely and starts the XEN Virtual machine on the mounted directory. The NFS Client computer then stops the XEN Virtual machine. So far, so good. The machine ran. It stopped. The NFS Client leaves the directory. No process is accessing that directory from the client side. Problem: The NFS Server cannot umount the local directory. fuser returns no usage of the directory. lsof returns no usage of the directory. umount -f won't force umount the directory. What does work is exportfs -ua. This is not a good way to go, since it is planned that many clients will be using the server; indeed many clients will be using multiple subdirectories on the server. 1. Is this a XEN bug or an NFS bug? 2. Is there some other command like exportfs in which you can just disable the one local directory but maintain an active mount on the parent directory? exports: /adir 192.168.11.129(rw,sync,no_subtree_check,crossmnt,no_root_squash) ======================================= /adir/image.iso (contains xen vm stuff) server executes: mount -o loop /adir/image.iso /adir/virtualstuff client mounts adir with mount -t nfs 192.168.11.22:/adir /adir xm create /adir/virtualstuff/config.cfg xm destroy virtual on the nfs-server: umount /adir/virtualstuff (won't) only exportfs -ua works, but this defeats my purpose. Can you suggest anything? thanks in advance, Roger Marcus -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
