> -----Original Message----- > From: Christopher T Vogan [mailto:cvogan@xxxxxxxxxx] > Sent: Tuesday, June 18, 2013 3:56 PM > To: Myklebust, Trond > Cc: linux-nfs@xxxxxxxxxxxxxxx > Subject: Re: NFSERR_STALE on umount with 3.10.0.RC5 kernel > > The NFS server uses UMNT as a signal to remove the client from its mount > table. Also at this time the Server cleans up other information about the now > disconnected client. Why would the client attempt to access the NFS server > once it has stated its going to unmount? I do not see the point of the > GETATTR request after UMNT call. As I said, the umount.nfs utility is doing the umount system call after UMNT, so the client does a lookup of the umount path at that time. IOW: This has nothing to do with the kernel. If you feel it is a bug, then please ask SteveD to file a fix against nfs-utils. Cheers Trond > Christopher Vogan > Dept. W98 NFS Development & Test > > > > From: "Myklebust, Trond" <Trond.Myklebust@xxxxxxxxxx> > To: Christopher T Vogan/San Jose/IBM@IBMUS, > Cc: "linux-nfs@xxxxxxxxxxxxxxx" <linux-nfs@xxxxxxxxxxxxxxx> > Date: 06/18/2013 10:19 AM > Subject: Re: NFSERR_STALE on umount with 3.10.0.RC5 kernel > > > > On Tue, 2013-06-18 at 07:47 -0600, Christopher T Vogan wrote: > > The new linux 3.10.0-rc5 kernel gets NFSERR_STALE on un-mount. > > The reason is the Linux client is sending a GETATTR after the umnt > > call/reply. > > This is a network trace of the umnt call/reply and the gettattr > > afterwords. > > This happens because the 'umount.nfs' utility calls the umnt RPC before the > actual umount system call. > > Why would this trigger an NFSERR_STALE? Is the server using UMNT for > something other than just providing client usage stats? If so, what and why? > > -- > Trond Myklebust > Linux NFS client maintainer > > NetApp > Trond.Myklebust@xxxxxxxxxx > www.netapp.com > > -- 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
