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From: Maxim Levitsky <maximlevitsky@gmail.com>
To: Neil Brown <neilb@suse.de>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
	Andrew Morton <akpm@linux-foundation.org>,
	Trond Myklebust <trond.myklebust@fys.uio.no>,
	gnome42@gmail.com, linux-kernel@vger.kernel.org,
	bfields@fieldses.org, "Eric W. Biederman" <ebiederm@xmission.com>,
	"Denis V. Lunev" <den@openvz.org>,
	linux-nfs@vger.kernel.org
Subject: Re: 2.6.24-rc3-git4 NFS crossmnt regression
Date: Mon, 10 Dec 2007 16:19:12 +0200	[thread overview]
Message-ID: <200712101619.12522.maximlevitsky@gmail.com> (raw)
In-Reply-To: <18268.51342.353887.178014-wvvUuzkyo1EYVZTmpyfIwg@public.gmane.org>

...
> 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-u79uwXL29TaiAVqoAR/hOA@public.gmane.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


Assuming that 
[PATCH 2.6.24-rc4] proc: Remove/Fix proc generic d_revalidate 
is the fix for crossmnt bug, I applied it to both client and server,
but no luck.

Still see empty folders.

my /etc/exports file (on old box):

/ *(insecure,rw,fsid=0,crossmnt,async,anonuid=1000,anongid=100)
/dev *(insecure,rw,fsid=1,async,anonuid=1000,anongid=100)
/mnt/disk2 *(insecure,rw,async,anonuid=1000,anongid=100)
	

It is totally insecure, but I have just home network,
and it is behind firewall, and besides I am testing this now.

I am afraid that I am doing something wrong since
I don't know nfs well yet, and especially nfs4
(But I want to make nfs4 work too)

Best regards,
	Maxim Levitsky

WARNING: multiple messages have this Message-ID (diff)
From: Maxim Levitsky <maximlevitsky@gmail.com>
To: Neil Brown <neilb@suse.de>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
	Andrew Morton <akpm@linux-foundation.org>,
	Trond Myklebust <trond.myklebust@fys.uio.no>,
	gnome42@gmail.com, linux-kernel@vger.kernel.org,
	bfields@fieldses.org, "Eric W. Biederman" <ebiederm@xmission.com>,
	"Denis V. Lunev" <den@openvz.org>,
	linux-nfs@vger.kernel.org
Subject: Re: 2.6.24-rc3-git4 NFS crossmnt regression
Date: Mon, 10 Dec 2007 16:19:12 +0200	[thread overview]
Message-ID: <200712101619.12522.maximlevitsky@gmail.com> (raw)
In-Reply-To: <18268.51342.353887.178014@notabene.brown>

...
> 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


Assuming that 
[PATCH 2.6.24-rc4] proc: Remove/Fix proc generic d_revalidate 
is the fix for crossmnt bug, I applied it to both client and server,
but no luck.

Still see empty folders.

my /etc/exports file (on old box):

/ *(insecure,rw,fsid=0,crossmnt,async,anonuid=1000,anongid=100)
/dev *(insecure,rw,fsid=1,async,anonuid=1000,anongid=100)
/mnt/disk2 *(insecure,rw,async,anonuid=1000,anongid=100)
	

It is totally insecure, but I have just home network,
and it is behind firewall, and besides I am testing this now.

I am afraid that I am doing something wrong since
I don't know nfs well yet, and especially nfs4
(But I want to make nfs4 work too)

Best regards,
	Maxim Levitsky

  parent reply	other threads:[~2007-12-10 14:19 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-07  4:45 2.6.24-rc3-git4 NFS crossmnt regression Shane
2007-12-07 12:02 ` Andrew Morton
2007-12-07 18:14   ` Shane
2007-12-07 18:36     ` Shane
2007-12-07 18:46     ` Trond Myklebust
2007-12-07 18:55       ` Shane
2007-12-07 19:16         ` Shane
2007-12-07 19:39           ` Shane
2007-12-07 22:51             ` Trond Myklebust
2007-12-07 23:14               ` Andrew Morton
2007-12-07 23:35                 ` Eric W. Biederman
2007-12-07 23:43                 ` Rafael J. Wysocki
2007-12-08  0:00                   ` Alexey Dobriyan
2007-12-08  0:15                     ` Andrew Morton
2007-12-08  2:13                       ` Shane
2007-12-08  4:18                       ` Eric W. Biederman
2007-12-08  4:25                       ` [PATCH 2.6.24-rc4] proc: Remove/Fix proc generic d_revalidate Eric W. Biederman
2007-12-08 17:15                         ` Shane
2007-12-10  2:52                         ` Petr Vandrovec
2007-12-10 13:32                           ` Denis V. Lunev
2007-12-10 19:35                             ` Andrew Morton
2007-12-10 21:35                               ` vandrove
2007-12-08  4:39                     ` 2.6.24-rc3-git4 NFS crossmnt regression Eric W. Biederman
2007-12-09  0:20                   ` Maxim Levitsky
2007-12-09 19:50                     ` J. Bruce Fields
2007-12-10  5:03                     ` Neil Brown
     [not found]                       ` <18268.51342.353887.178014-wvvUuzkyo1EYVZTmpyfIwg@public.gmane.org>
2007-12-10 14:19                         ` Maxim Levitsky [this message]
2007-12-10 14:19                           ` Maxim Levitsky
2007-12-10 14:36                           ` J. Bruce Fields
2007-12-10 14:36                             ` J. Bruce Fields
2007-12-10 15:05                             ` Maxim Levitsky
2007-12-10 15:05                               ` Maxim Levitsky
2007-12-10 15:47                               ` J. Bruce Fields
2007-12-10 15:47                                 ` J. Bruce Fields
2007-12-10 18:22                                 ` Maxim Levitsky
2007-12-10 18:22                                   ` Maxim Levitsky
2007-12-10 21:03                               ` Andrew Morton
2007-12-10 21:03                                 ` Andrew Morton
2007-12-12  2:01                                 ` 2.6.24-rc3-git4 NFS crossmnt regression [SOLVED] Maxim Levitsky
2007-12-12  2:01                                   ` Maxim Levitsky
2007-12-12  2:15                                   ` Andrew Morton
2007-12-12  2:19                                     ` Trond Myklebust
2007-12-12  2:19                                       ` Trond Myklebust
     [not found]                                       ` <1197425940.27061.1.camel-rJ7iovZKK19ZJLDQqaL3InhyD016LWXt@public.gmane.org>
2007-12-12  2:44                                         ` Andrew Morton
2007-12-12  2:44                                           ` Andrew Morton
2007-12-12  2:24                                     ` Maxim Levitsky
2007-12-12  2:24                                       ` Maxim Levitsky
2007-12-10 19:51                           ` 2.6.24-rc3-git4 NFS crossmnt regression Shane
2007-12-10 19:51                             ` Shane
2007-12-07 22:33       ` Andrew Morton
2007-12-07 22:39         ` Trond Myklebust
2007-12-07 19:54   ` Rafael J. Wysocki

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