[Pkg-utopia-maintainers] Bug#907039: avahi-daemon: Host name conflict on startup (race condition?).

[Tim Small]

Package: avahi-daemon
Version: 0.7-4
Severity: normal

Dear Maintainer,

On boot-up I sometimes see avahi-daemon reporting a hostname conflict.

The system uses network-manager and has a single Ethernet interface
which is configured as a bridge (to allow virtualisation on this
workstation).  Logs below:


Aug 23 02:13:44 catfish avahi-daemon[666]: Found user 'avahi' (UID 103) and group 'avahi' (GID 105).
Aug 23 02:13:44 catfish avahi-daemon[666]: Successfully dropped root privileges.
Aug 23 02:13:44 catfish avahi-daemon[666]: avahi-daemon 0.7 starting up.
Aug 23 02:13:44 catfish avahi-daemon[666]: Successfully called chroot().
Aug 23 02:13:44 catfish avahi-daemon[666]: Successfully dropped remaining capabilities.
Aug 23 02:13:44 catfish avahi-daemon[679]: chroot.c: open() failed: No such file or directory
Aug 23 02:13:44 catfish avahi-daemon[666]: Failed to open /etc/resolv.conf: Invalid argument
Aug 23 02:13:44 catfish avahi-daemon[666]: No service file found in /etc/avahi/services.
Aug 23 02:13:44 catfish avahi-daemon[666]: Network interface enumeration completed.
Aug 23 02:13:44 catfish avahi-daemon[666]: Server startup complete. Host name is catfish.local. Local service cookie is 1473162524.
Aug 23 02:13:50 catfish avahi-daemon[666]: Joining mDNS multicast group on interface brint.IPv6 with address fe80::ec4c:9fcd:af1e:1f59.
Aug 23 02:13:50 catfish avahi-daemon[666]: New relevant interface brint.IPv6 for mDNS.
Aug 23 02:13:50 catfish avahi-daemon[666]: Registering new address record for fe80::ec4c:9fcd:af1e:1f59 on brint.*.
Aug 23 02:13:51 catfish avahi-daemon[666]: Joining mDNS multicast group on interface brint.IPv4 with address 172.19.198.239.
Aug 23 02:13:51 catfish avahi-daemon[666]: New relevant interface brint.IPv4 for mDNS.
Aug 23 02:13:51 catfish avahi-daemon[666]: Registering new address record for 172.19.198.239 on brint.IPv4.
Aug 23 02:13:52 catfish avahi-daemon[666]: Leaving mDNS multicast group on interface brint.IPv6 with address fe80::ec4c:9fcd:af1e:1f59.
Aug 23 02:13:52 catfish avahi-daemon[666]: Joining mDNS multicast group on interface brint.IPv6 with address 2001:470:1b4a:0:225e:abf0:40ee:b397.
Aug 23 02:13:52 catfish avahi-daemon[666]: Registering new address record for 2001:470:1b4a:0:225e:abf0:40ee:b397 on brint.*.
Aug 23 02:13:52 catfish avahi-daemon[666]: Withdrawing address record for fe80::ec4c:9fcd:af1e:1f59 on brint.
Aug 23 02:13:52 catfish avahi-daemon[666]: Withdrawing address record for 172.19.198.239 on brint.
Aug 23 02:13:52 catfish avahi-daemon[666]: Host name conflict, retrying with catfish-2
Aug 23 02:13:52 catfish avahi-daemon[666]: Registering new address record for 2001:470:1b4a:0:225e:abf0:40ee:b397 on brint.*.
Aug 23 02:13:52 catfish avahi-daemon[666]: Registering new address record for 172.19.198.239 on brint.IPv4.
Aug 23 02:13:53 catfish avahi-daemon[666]: Server startup complete. Host name is catfish-2.local. Local service cookie is 1473162524.
Aug 23 02:13:54 catfish avahi-daemon[666]: Registering new address record for 2001:470:1b4a::fa0 on brint.*.
Aug 23 10:29:24 catfish avahi-daemon[666]: Files changed, reloading.
Aug 23 10:29:24 catfish avahi-daemon[666]: No service file found in /etc/avahi/services.
Aug 23 10:29:53 catfish avahi-daemon[666]: Files changed, reloading.
Aug 23 10:29:53 catfish avahi-daemon[666]: No service file found in /etc/avahi/services.
Aug 23 10:29:53 catfish avahi-daemon[666]: Files changed, reloading.
Aug 23 10:29:53 catfish avahi-daemon[666]: No service file found in /etc/avahi/services.
Aug 23 10:29:53 catfish avahi-daemon[666]: Files changed, reloading.
Aug 23 10:29:53 catfish avahi-daemon[666]: No service file found in /etc/avahi/services.
Aug 23 10:29:53 catfish avahi-daemon[666]: Files changed, reloading.
Aug 23 10:29:53 catfish avahi-daemon[666]: No service file found in /etc/avahi/services.
Aug 23 10:29:53 catfish avahi-daemon[666]: Files changed, reloading.
Aug 23 10:29:53 catfish avahi-daemon[666]: No service file found in /etc/avahi/services.
Aug 23 10:41:53 catfish avahi-daemon[666]: Got SIGTERM, quitting.
Aug 23 10:41:53 catfish avahi-daemon[666]: Leaving mDNS multicast group on interface brint.IPv6 with address 2001:470:1b4a:0:225e:abf0:40ee:b397.
Aug 23 10:41:53 catfish avahi-daemon[666]: Leaving mDNS multicast group on interface brint.IPv4 with address 172.19.198.239.
Aug 23 10:41:53 catfish avahi-daemon[666]: avahi-daemon 0.7 exiting.
Aug 23 10:41:53 catfish avahi-daemon[11715]: Process 666 died: No such process; trying to remove PID file. (/run/avahi-daemon//pid)
Aug 23 10:41:53 catfish avahi-daemon[11715]: Found user 'avahi' (UID 103) and group 'avahi' (GID 105).
Aug 23 10:41:53 catfish avahi-daemon[11715]: Successfully dropped root privileges.
Aug 23 10:41:53 catfish avahi-daemon[11715]: avahi-daemon 0.7 starting up.
Aug 23 10:41:53 catfish avahi-daemon[11715]: Successfully called chroot().
Aug 23 10:41:53 catfish avahi-daemon[11715]: Successfully dropped remaining capabilities.
Aug 23 10:41:53 catfish avahi-daemon[11715]: No service file found in /etc/avahi/services.
Aug 23 10:41:53 catfish avahi-daemon[11715]: Joining mDNS multicast group on interface brint.IPv6 with address 2001:470:1b4a:0:225e:abf0:40ee:b397.
Aug 23 10:41:53 catfish avahi-daemon[11715]: New relevant interface brint.IPv6 for mDNS.
Aug 23 10:41:53 catfish avahi-daemon[11715]: Joining mDNS multicast group on interface brint.IPv4 with address 172.19.198.239.
Aug 23 10:41:53 catfish avahi-daemon[11715]: New relevant interface brint.IPv4 for mDNS.
Aug 23 10:41:53 catfish avahi-daemon[11715]: Network interface enumeration completed.
Aug 23 10:41:53 catfish avahi-daemon[11715]: Registering new address record for 2001:470:1b4a:0:225e:abf0:40ee:b397 on brint.*.
Aug 23 10:41:53 catfish avahi-daemon[11715]: Registering new address record for 2001:470:1b4a::fa0 on brint.*.
Aug 23 10:41:53 catfish avahi-daemon[11715]: Registering new address record for 172.19.198.239 on brint.IPv4.
Aug 23 10:41:54 catfish avahi-daemon[11715]: Server startup complete. Host name is catfish.local. Local service cookie is 443648086.

-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (500, 'testing'), (150, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.17.0-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages avahi-daemon depends on:
ii  adduser            3.117
ii  bind9-host [host]  1:9.11.3+dfsg-2
ii  dbus               1.12.10-1
ii  libavahi-common3   0.7-4
ii  libavahi-core7     0.7-4
ii  libc6              2.27-5
ii  libcap2            1:2.25-1.2
ii  libdaemon0         0.14-7
ii  libdbus-1-3        1.12.10-1
ii  libexpat1          2.2.6-1
ii  lsb-base           9.20170808

Versions of packages avahi-daemon recommends:
ii  libnss-mdns  0.14.1-1

Versions of packages avahi-daemon suggests:
pn  avahi-autoipd  <none>

-- Configuration Files:
/etc/avahi/avahi-daemon.conf changed:
[server]
use-ipv4=yes
use-ipv6=yes
ratelimit-interval-usec=1000000
ratelimit-burst=1000
[wide-area]
enable-wide-area=yes
[publish]
publish-hinfo=no
publish-workstation=no
[reflector]
[rlimits]


-- no debconf information