Re: 2.6.24-rc3-git4 NFS crossmnt regression

Maxim Levitsky
2007-12-10T18:22:40Z

On Monday 10 December 2007 17:47:47 J. Bruce Fields wrote:
> On Mon, Dec 10, 2007 at 05:05:30PM +0200, Maxim Levitsky wrote:
> > On Monday 10 December 2007 16:36:09 J. Bruce Fields wrote:
> > > On Mon, Dec 10, 2007 at 04:19:12PM +0200, Maxim Levitsky wrote:
> > > > ...
> > > > > It is best not to use nohide - we should probably mark it as
> > > > > 'legacy'.
> > > > >
> > > > > Simply export the top level mountpoint as 'crossmnt' and everything
> > > > > below there will be exported.
> > > > >
> > > > > > Where should I put those options in root file-system export or in submount export?
> > > > >
> > > > > crossmnt goes at the top. nohide goes in the submount. Both have
> > > > > the same general effect though with subtle differences.
> > > > > You don't need both (though that doesn't hurt).
> > > > > Just use crossmnt at the top, Then you don't need to mention the
> > > > > lower level filesystems at all.
> > > > >
> > > > > >
> > > > ...
> > > > > > (I decided to switch to NFS4 only due to the lack of ability to see underlying mounts)
> > > > > >
> > > > >
> > > > > All of this should work fine with v3. Once you have the right patch
> > > > > for the crossmnt bug applied, if you have further problems post them
> > > > > to linux-nfs@vger.kernel.org.
> > > > >
> > > > > NeilBrown
> > > > >
> > > >
> > > > Big thanks,
> > > >
> > > > Still NFS server just don't want to accept the connection
> > > > I noticed that if I first mount with
> > > > -tnfs, unmount, and then mount with -tnfs4, it works
> > >
> > > OK, in that case, that's definitely the bug Eric sent out the patch for;
> > > you may want to try applying his patch.
> > You mean
> > "[PATCH 2.6.24-rc4] proc: Remove/Fix proc generic d_revalidate" ?
> >
> > I did apply it (on both kernel and server), and it doesn't help.
> > Best regards,
> > Maxim Levitsky
> >
> > PS: I am unfamiliar with nfs/nfs4, so this could be just a
> > configuration/compilation issue.
>
> What do
> ls /proc/fs/nfs
> ls /proc/fs/nfsd
>
> report?
>
> --b.
>

On both client and server:

maxim [~]$ ls /proc/fs/nfs
exports
maxim [~]$ ls /proc/fs/nfsd
exports max_block_size nfsv4recoverydir portlist versions
filehandle nfsv4leasetime pool_threads threads
maxim [~]$

Best regards,
Maxim Levitsky