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From: Ulli Horlacher <framstag@rus.uni-stuttgart.de>
To: linux-btrfs@vger.kernel.org
Subject: Re: cannot use btrfs for nfs server
Date: Sat, 10 Jul 2021 09:03:12 +0200	[thread overview]
Message-ID: <20210710070312.GG1548@tik.uni-stuttgart.de> (raw)
In-Reply-To: <CAMnT83vyufNCMDQQnyYi-k8dOft3_bc_2L-rgHOBzeWgKqPt2A@mail.gmail.com>

On Fri 2021-07-09 (19:06), Lord Vader wrote:
> On Fri, 9 Jul 2021 at 01:18, Ulli Horlacher
> <framstag@rus.uni-stuttgart.de> wrote:
> 
> > I have waited some time and some Ubuntu updates, but the bug is still there:
> > > > When I try to access a btrfs filesystem via nfs, I get the error:
> > > > root@tsmsrvi:~# mount tsmsrvj:/data/fex /nfs/tsmsrvj/fex
> > > > root@tsmsrvi:~# time find /nfs/tsmsrvj/fex | wc -l
> > > > find: File system loop detected; '/nfs/tsmsrvj/fex/spool' is part of the same file system loop as '/nfs/tsmsrvj/fex'.
> 
> Can you try exporting NFS share with 'crossmnt' option?

root@tsmsrvj:/etc# exportfs -v
/data/fex       localhost.localdomain(rw,async,wdelay,crossmnt,no_root_squash,no_subtree_check,sec=sys,rw,secure,no_root_squash,no_all_squash)

root@tsmsrvj:/etc# mount -v localhost:/data/fex /nfs/localhost/fex
mount.nfs: timeout set for Sat Jul 10 09:02:31 2021
mount.nfs: trying text-based options 'vers=4.2,addr=127.0.0.1,clientaddr=127.0.0.1'

root@tsmsrvj:/etc# du -s /nfs/localhost/fex
du: WARNING: Circular directory structure.
This almost certainly means that you have a corrupted file system.
NOTIFY YOUR SYSTEM MANAGER.
The following directory is part of the cycle:
  /nfs/localhost/fex/spool

-- 
Ullrich Horlacher              Server und Virtualisierung
Rechenzentrum TIK         
Universitaet Stuttgart         E-Mail: horlacher@tik.uni-stuttgart.de
Allmandring 30a                Tel:    ++49-711-68565868
70569 Stuttgart (Germany)      WWW:    http://www.tik.uni-stuttgart.de/
REF:<CAMnT83vyufNCMDQQnyYi-k8dOft3_bc_2L-rgHOBzeWgKqPt2A@mail.gmail.com>

  reply	other threads:[~2021-07-10  7:03 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20210613115313.BC59.409509F4@e16-tech.com>
2021-03-10  7:46 ` nfs subvolume access? Ulli Horlacher
2021-03-10  7:59   ` Hugo Mills
2021-03-10  8:09     ` Ulli Horlacher
2021-03-10  9:35       ` Graham Cobb
2021-03-10 15:55         ` Ulli Horlacher
2021-03-10 17:29           ` Forza
2021-03-10 17:46             ` Ulli Horlacher
2021-03-10  8:17   ` Ulli Horlacher
2021-03-11  7:46   ` Ulli Horlacher
2021-07-08 22:17     ` cannot use btrfs for nfs server Ulli Horlacher
2021-07-09  0:05       ` Graham Cobb
2021-07-09  4:05         ` NeilBrown
2021-07-09  6:53         ` Ulli Horlacher
2021-07-09  7:23           ` Forza
2021-07-09  7:24             ` Hugo Mills
2021-07-09  7:34             ` Ulli Horlacher
2021-07-09 16:30               ` Chris Murphy
2021-07-10  6:35                 ` Ulli Horlacher
2021-07-11 11:41                   ` Forza
2021-07-12  7:17                     ` Ulli Horlacher
2021-07-09 16:35           ` Chris Murphy
2021-07-10  6:56             ` Ulli Horlacher
2021-07-10 22:17               ` Chris Murphy
2021-07-12  7:25                 ` Ulli Horlacher
2021-07-12 13:06                   ` Graham Cobb
2021-07-12 16:16                     ` Ulli Horlacher
2021-07-12 22:56                       ` g.btrfs
2021-07-13  7:37                         ` Ulli Horlacher
2021-07-19 12:06                           ` Forza
2021-07-19 13:07                             ` Forza
2021-07-19 13:35                               ` Forza
2021-07-27 11:27                             ` Ulli Horlacher
2021-07-09 16:06       ` Lord Vader
2021-07-10  7:03         ` Ulli Horlacher [this message]
     [not found]   ` <162632387205.13764.6196748476850020429@noble.neil.brown.name>
2021-07-15 14:09     ` [PATCH/RFC] NFSD: handle BTRFS subvolumes better Josef Bacik
2021-07-15 16:45       ` Christoph Hellwig
2021-07-15 17:11         ` Josef Bacik
2021-07-15 17:24           ` Christoph Hellwig
2021-07-15 18:01             ` Josef Bacik
2021-07-15 22:37               ` NeilBrown
2021-07-19 15:40                 ` Josef Bacik
2021-07-19 20:00                   ` J. Bruce Fields
2021-07-19 20:44                     ` Josef Bacik
2021-07-19 23:53                       ` NeilBrown
2021-07-19 15:49                 ` J. Bruce Fields
2021-07-20  0:02                   ` NeilBrown
2021-07-19  9:16               ` Christoph Hellwig
2021-07-19 23:54                 ` NeilBrown
2021-07-20  6:23                   ` Christoph Hellwig
2021-07-20  7:17                     ` NeilBrown
2021-07-20  8:00                       ` Christoph Hellwig
2021-07-20 23:11                         ` NeilBrown
2021-07-20 22:10               ` J. Bruce Fields
2021-07-15 23:02       ` NeilBrown
2021-07-15 15:45     ` J. Bruce Fields
2021-07-15 23:08       ` NeilBrown

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