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Bug#1076448: marked as done (linux: Update from 5.10.218 to 5.10.221 breaks NFS re-exports)

Your message dated Tue, 16 Jul 2024 20:49:15 +0000
with message-id <E1sTp6p-000XoK-A2@fasolo.debian.org>
and subject line Bug#1076448: fixed in nfs-utils 1:1.3.4-6+deb11u1
has caused the Debian Bug report #1076448,
regarding linux: Update from 5.10.218 to 5.10.221 breaks NFS re-exports
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
1076448: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1076448
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Source: linux
Version: 5.10.221-1
Severity: normal
X-Debbugs-Cc: haegar@sdinet.de

Updating from Debian Bullseye 5.10.218-1 to 5.10.221-1 broke our NFS 
server.

The server mounts some NFS directories from a NAS, and re-exports them 
(and more) to other servers.

With 5.10.218-1 everything worked just fine.

But with 5.10.221-1 (most likeley because of the big NFS backports in 
5.10.220) starting the nfs-server.service breaks with

Jul 16 12:58:56 mytest-sh exportfs[2071]: exportfs: /media/nfsroot/pvsbackup does not support NFS export


We were using the normal Debian Bullseye nfs-kernel-server package:

Package: nfs-kernel-server
Version: 1:1.3.4-6

NFS Mount via /etc/fstab:
10.1.2.3:/pvsbackup /media/nfsroot/pvsbackup     nfs  rw,bg,hard,timeo=600,proto=tcp,retrans=2 0 0

NFS export in /etc/exports
/media/nfsroot/pvsbackup 10.4.5.6/32(rw,no_root_squash,no_subtree_check,fsid=61cb2589-1805-438a-9bd7-7baf0daabfd2)


In the wiki page https://wiki.linux-nfs.org/wiki/index.php/NFS_re-export 
I found the comment "You'll need nfs-utils at least 1.3.5 (specifically, 
3f520e8f6f5 "exportfs: Make sure pass all valid export flags to nfsd"). 
Otherwise, on recent kernels, attempts to re-export NFS will likely 
result in "exportfs: <path> does not support NFS export". - and the 
Debian  Bullseye nfs-utils packages based in 1.3.4 do not satisfy this.

Seems since the NFS backports 5.10.220 can be seen as "recent kernels", 
while the previous 5.10.218 not yet.

For testing I recompiled/backported the Debian Bookworm nfs-utils 
1:2.6.2-4 for Bullseye, and this totally fixes the problems.

So I think Debian Bullseye either needs these NFS kernel changes 
reverted, or its nfs-utils/nfs-kernel-server packages updated to include 
at least the missing commit.

Greetings,
Haegar


-- System Information:
Debian Release: 11.10
  APT prefers oldstable-updates
  APT policy: (500, 'oldstable-updates'), (500, 'oldstable-security'), 
(500, 'oldstable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.10.0-31-amd64 (SMP w/2 CPU threads)
Locale: LANG=en_US.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), 
LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/bash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

--- End Message ---
--- Begin Message --- 
Source: nfs-utils
Source-Version: 1:1.3.4-6+deb11u1
Done: Salvatore Bonaccorso <carnil@debian.org>

We believe that the bug you reported is fixed in the latest version of
nfs-utils, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1076448@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Salvatore Bonaccorso <carnil@debian.org> (supplier of updated nfs-utils package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Format: 1.8
Date: Tue, 16 Jul 2024 20:37:00 +0200
Source: nfs-utils
Architecture: source
Version: 1:1.3.4-6+deb11u1
Distribution: bullseye
Urgency: medium
Maintainer: Debian kernel team <debian-kernel@lists.debian.org>
Changed-By: Salvatore Bonaccorso <carnil@debian.org>
Closes: 1076448
Changes:
 nfs-utils (1:1.3.4-6+deb11u1) bullseye; urgency=medium
 .
   * exportfs: Make sure pass all valid export flags to nfsd (Closes: #1076448)
Checksums-Sha1: 
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 9ee83344baee4b8d839277e523c4fc0d01cd616a 52848 nfs-utils_1.3.4-6+deb11u1.debian.tar.xz
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 1d14ee9934dcda984e85711011f80e7387fb2f8b6c8b7cfb2a2a424e907e0ced 52848 nfs-utils_1.3.4-6+deb11u1.debian.tar.xz
Files: 
 78c54a114d2dc16f2f5e1f12227162dd 2480 net optional nfs-utils_1.3.4-6+deb11u1.dsc
 6d87aecabf61c4b2c24001d1b07aa727 52848 net optional nfs-utils_1.3.4-6+deb11u1.debian.tar.xz

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