Trond: BINGO!!!! That was good! Thank you thank you. Does this mean that if I recreate the subdirectory, I have to do something to re-exportit? like exportfs -a nfsclient:/adir I will keep going, but that is great so far! Thank you very much, Roger Marcus trond: Oh, you're using crossmnt to export the subdirectories? In that case, why doesn't just 'exportfs -f' suffice to allow you to unmount them? On Fri, May 8, 2009 at 3:43 PM, Trond Myklebust <trond.myklebust@xxxxxxxxxx> wrote: > On Fri, 2009-05-08 at 15:11 +0200, Roger Marcus wrote: >> Hi Trond, >> >> Thank you for your answer. >> >> exportfs does not report the individual directories that are mounted >> on the exported directory, so I cannot use your script. >> >> on the nfsserver exports file: >> /adir 192.168.11.129(rw,sync,no_subtree_check,crossmnt,no_root_squash) >> >> on the same machine: >> mount -o loop virtual.iso virtualstuff >> so now I have /adir/virtualstuff >> >> (which by the way, I can: umount virtualstuff immediately without >> problem and it releases. >> however, if I run XEN on the client, then the directory is permanently >> locked, ie, umount virtualstuff >> DOESN'T work again unless I run exportfs -ua killing all connections >> to the server.) >> >> the nfs-client sees /adir/virtualstuff, since parent /adir is mounted. >> When I run the virtualmachine within the virtualstuff directory (xm >> create /adir/virtualstuff/config.cfg) >> and then I destroy the virtualmachine (xm destroy /adir/virtualstuff/config.cfg) >> I can never 'umount virtualstuff' from the nfsserver, even though no >> one is accessing the directory >> any more. >> >> So on the nfsserver I cannot umount virtualstuff. this is the bug. >> >> exportfs -ua kills nfs for everybody, and then I can run 'umount >> virtualstuff', but this is not what I want. >> exportfs -u nfsclient:/adir doesn't even work. I don't want this >> variation because I might be running 2 virtual machines >> in two subdirectories. >> >> question: is the fact that ;exportfs -u nfsclient:/adir' doesn't work a bug? >> >> What I want to be able to do is from the nfsserver side, 'umount >> virtualstuff', which I can do if I >> 1) never run XEN, or >> 2) exportfs -ua. The latter command kills all clients attached to the server >> so I cannot use this second command. >> 3) the command 'exportfs -u nfsclient:/adir' doesn't work and this >> might be a bug. I do not >> want this variant since if I am running 2 virtual machines on the >> nfsclient I would kill the other machine. >> >> In /proc/net/rpc/nfsd.export/content I see my virtualstuff >> subdirectory referenced. Perhaps this >> tells you something. >> >> Thank you in advance, >> >> Roger Marcus >> > > Oh, you're using crossmnt to export the subdirectories? In that case, > why doesn't just 'exportfs -f' suffice to allow you to unmount them? > > Trond > > -- 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
