linux-kernel - Re: 2.6.24-rc3-git4 NFS crossmnt regression

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20071210143609.GF2138@fieldses.org>
Date:	Mon, 10 Dec 2007 09:36:09 -0500
From:	"J. Bruce Fields" <bfields@...ldses.org>
To:	Maxim Levitsky <maximlevitsky@...il.com>
Cc:	Neil Brown <neilb@...e.de>, "Rafael J. Wysocki" <rjw@...k.pl>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Trond Myklebust <trond.myklebust@....uio.no>,
	gnome42@...il.com, linux-kernel@...r.kernel.org,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"Denis V. Lunev" <den@...nvz.org>, linux-nfs@...r.kernel.org
Subject: Re: 2.6.24-rc3-git4 NFS crossmnt regression

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@...r.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.

--b.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/