[Pkg-utopia-maintainers] Bug#898527: libnss-mdns: Adding ipv6 scope id breaks NFS mounts

[Ross Vandegrift]

Package: libnss-mdns
Version: 0.14.1-1
Severity: normal
Tags: ipv6

After upgrading my laptop from stretch to buster, I'm not able to mount NFS via
mdns.  I have the following entry in /etc/fstab:

  vanvanmojo.local:/mnt/storage   /mnt/storage         nfs4       noauto,nofail,x-systemd.automount,x-systemd.mount-timeout=10,x-systemd.requires=network-online.target,x-systemd.idle-timeout=10m        0       0

The mount fails with the following log message:

  stgulik kernel: [  575.329441] NFS: bad IP address specified: addr=2606:6000:4502:1d00:4639:c4ff:fe53:e49b%2

It looks like the scope id was added in #644912.  This may be a kernel bug if
the scope id should be accepted.

Thanks,
Ross


-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (500, 'testing'), (40, 'unstable'), (30, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.16.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libnss-mdns depends on:
ii  avahi-daemon  0.7-4
ii  base-files    10.1
ii  libc6         2.27-3

libnss-mdns recommends no packages.

Versions of packages libnss-mdns suggests:
ii  avahi-autoipd  0.7-4

-- no debconf information