On 10/13/2010 11:11 PM, Jesper Krogh wrote: > Hi. > > Quite often when you have to umount a fileshare you get the > message "Device or resource busy". Typically I traverse through > the output of lsof | grep mountpoint and stop processes or kill > until I can safely umount. > > But the nfs-kernel-server does not register its open files, so > seen from userspace is it extremely hard to find out that is actually > is the nfs-server that prevents you from being able to umount > the filesystems. > > Would it be possible to register the open files the same place > so administrators can see them? > > ... basically just a feature-request from one who just spend an hour on > that. > Me to! Also note that even if there are no open files in clients and no client mounts on the server, but there where in the passed. The used to be used super-block is referenced. Only restart of the nfs service will release it. But yes if it could register as a special file for lsof to see it would help a lot. Boaz -- 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