#771806 avahi-daemon has a name conflict with itself: endless loop

Package:
avahi-daemon
Source:
avahi
Description:
Avahi mDNS/DNS-SD daemon
Submitter:
Matthias Urlichs
Date:
2025-01-25 16:03:01 UTC
Severity:
important
#771806#5
Date:
2014-12-02 15:31:15 UTC
From:
To:
Endless loop:
Dez 02 16:22:22 iron avahi-daemon[15215]: Withdrawing address record for 2001:780:0:e:107:3:: on br0.
Dez 02 16:22:22 iron avahi-daemon[15215]: Withdrawing address record for 213.95.21.98 on br0.
Dez 02 16:22:22 iron avahi-daemon[15215]: Withdrawing address record for 10.6.0.6 on br579.
Dez 02 16:22:22 iron avahi-daemon[15215]: Withdrawing address record for fe80::2e0:81ff:fe40:148b on br443.
Dez 02 16:22:22 iron avahi-daemon[15215]: Withdrawing address record for 10.107.8.3 on br443.
Dez 02 16:22:22 iron avahi-daemon[15215]: Host name conflict, retrying with iron-9
Dez 02 16:22:22 iron avahi-daemon[15215]: Registering new address record for 2001:780:0:e:107:3:: on br0.*.
Dez 02 16:22:22 iron avahi-daemon[15215]: Registering new address record for 213.95.21.98 on br0.IPv4.
Dez 02 16:22:22 iron avahi-daemon[15215]: Registering new address record for fec0:6b6f:480f:e30a::3 on br579.*.
Dez 02 16:22:22 iron avahi-daemon[15215]: Registering new address record for 10.6.0.6 on br579.IPv4.
Dez 02 16:22:22 iron avahi-daemon[15215]: Registering new address record for fe80::2e0:81ff:fe40:148b on br443.*.
Dez 02 16:22:22 iron avahi-daemon[15215]: Registering new address record for 10.107.8.3 on br443.IPv4.
Dez 02 16:22:22 iron avahi-daemon[15215]: Registering HINFO record with values 'X86_64'/'LINUX'.
(repeats every second, incrementing iron-*)

It'd be very helpful if that message would print the interface, IP and MAC
of whatever message triggered the conflict.

iron:/run/backup # ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default qlen 1000
    link/ether 00:e0:81:40:14:8a brd ff:ff:ff:ff:ff:ff
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:e0:81:40:14:8b brd ff:ff:ff:ff:ff:ff
6: eth1.5@eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br0 state UP group default
    link/ether 00:e0:81:40:14:8b brd ff:ff:ff:ff:ff:ff
11: br443: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
    link/ether 00:e0:81:40:14:8b brd ff:ff:ff:ff:ff:ff
    inet 10.107.8.3/24 brd 10.107.8.255 scope global br443
       valid_lft forever preferred_lft forever
    inet6 fe80::2e0:81ff:fe40:148b/64 scope link
       valid_lft forever preferred_lft forever
30: eth1.579@eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br579 state UP group default
    link/ether 00:e0:81:40:14:8b brd ff:ff:ff:ff:ff:ff
31: eth1.443@eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br443 state UP group default
    link/ether 00:e0:81:40:14:8b brd ff:ff:ff:ff:ff:ff
32: br579: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
    link/ether 00:e0:81:40:14:8b brd ff:ff:ff:ff:ff:ff
    inet 10.6.0.6/24 brd 10.6.0.255 scope global br579
       valid_lft forever preferred_lft forever
    inet6 fec0:6b6f:480f:e30a::3/64 scope site tentative dadfailed
       valid_lft forever preferred_lft forever
    inet6 fe80::2e0:81ff:fe40:148b/64 scope link
       valid_lft forever preferred_lft forever
33: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
    link/ether 00:e0:81:40:14:8b brd ff:ff:ff:ff:ff:ff
    inet 213.95.21.98/24 brd 213.95.21.255 scope global br0
       valid_lft forever preferred_lft forever
    inet6 2001:780:0:e:107:3::/64 scope global
       valid_lft forever preferred_lft forever
    inet6 fe80::5c85:abff:fe60:504e/64 scope link
       valid_lft forever preferred_lft forever
39: vb-map: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UP group default qlen 1000
    link/ether f2:af:d7:07:1d:30 brd ff:ff:ff:ff:ff:ff

iron:/run/backup # brctl show
bridge name     bridge id               STP enabled     interfaces
br0             8000.00e08140148b       no              eth1.5
                                                        vb-map
br443           8000.00e08140148b       no              eth1.443
br579           8000.00e08140148b       no              eth1.579

This is a production machine, so I can't reduce this further.
The vhost behind the vb-map interface does not run avahi.
#771806#10
Date:
2017-04-29 15:56:00 UTC
From:
To:
Hi,

I can confirm this behavior on current unstable.

Greetings
Marc
#771806#15
Date:
2018-08-03 10:33:27 UTC
From:
To:
And with this bug happily approaching its fourth anniversary (without a
trace of maintainer interest or even action), it is still here.

Aug  3 12:21:04 fan avahi-daemon[1815]: Host name conflict, retrying with fan-2
Aug  3 12:21:05 fan avahi-daemon[1815]: Host name conflict, retrying with fan-3
Aug  3 12:21:06 fan avahi-daemon[1815]: Host name conflict, retrying with fan-4
Aug  3 12:21:07 fan avahi-daemon[1815]: Host name conflict, retrying with fan-5
Aug  3 12:21:08 fan avahi-daemon[1815]: Host name conflict, retrying with fan-6
Aug  3 12:21:09 fan avahi-daemon[1815]: Host name conflict, retrying with fan-7
Aug  3 12:21:09 fan avahi-daemon[1815]: Host name conflict, retrying with fan-8
Aug  3 12:21:10 fan avahi-daemon[1815]: Host name conflict, retrying with fan-9
Aug  3 12:21:11 fan avahi-daemon[1815]: Host name conflict, retrying with fan-10
Aug  3 12:21:13 fan avahi-daemon[1815]: Host name conflict, retrying with fan-11
Aug  3 12:21:14 fan avahi-daemon[1815]: Host name conflict, retrying with fan-12
Aug  3 12:21:15 fan avahi-daemon[1815]: Host name conflict, retrying with fan-13
Aug  3 12:21:16 fan avahi-daemon[1815]: Host name conflict, retrying with fan-14
Aug  3 12:21:17 fan avahi-daemon[1815]: Host name conflict, retrying with fan-15
Aug  3 12:21:18 fan avahi-daemon[1815]: Host name conflict, retrying with fan-16
Aug  3 12:21:19 fan avahi-daemon[1815]: Host name conflict, retrying with fan-17
Aug  3 12:21:20 fan avahi-daemon[1815]: Host name conflict, retrying with fan-18
Aug  3 12:21:21 fan avahi-daemon[1815]: Host name conflict, retrying with fan-19
Aug  3 12:21:22 fan avahi-daemon[1815]: Host name conflict, retrying with fan-20
Aug  3 12:21:22 fan avahi-daemon[1815]: Host name conflict, retrying with fan-21
Aug  3 12:21:43 fan avahi-daemon[1815]: Host name conflict, retrying with fan-22
Aug  3 12:22:03 fan avahi-daemon[1815]: Host name conflict, retrying with fan-23
Aug  3 12:22:22 fan avahi-daemon[1815]: Host name conflict, retrying with fan-24
Aug  3 12:22:42 fan avahi-daemon[1815]: Host name conflict, retrying with fan-25
Aug  3 12:23:02 fan avahi-daemon[1815]: Host name conflict, retrying with fan-26
Aug  3 12:23:22 fan avahi-daemon[1815]: Host name conflict, retrying with fan-27
Aug  3 12:23:43 fan avahi-daemon[1815]: Host name conflict, retrying with fan-28
Aug  3 12:24:03 fan avahi-daemon[1815]: Host name conflict, retrying with fan-29
Aug  3 12:24:23 fan avahi-daemon[1815]: Host name conflict, retrying with fan-30
Aug  3 12:24:43 fan avahi-daemon[1815]: Host name conflict, retrying with fan-31
Aug  3 12:25:03 fan avahi-daemon[1815]: Host name conflict, retrying with fan-32
Aug  3 12:25:23 fan avahi-daemon[1815]: Host name conflict, retrying with fan-33
Aug  3 12:25:42 fan avahi-daemon[1815]: Host name conflict, retrying with fan-34
Aug  3 12:26:03 fan avahi-daemon[1815]: Host name conflict, retrying with fan-35
Aug  3 12:26:23 fan avahi-daemon[1815]: Host name conflict, retrying with fan-36
Aug  3 12:26:43 fan avahi-daemon[1815]: Host name conflict, retrying with fan-37
Aug  3 12:27:03 fan avahi-daemon[1815]: Host name conflict, retrying with fan-38
Aug  3 12:27:23 fan avahi-daemon[1815]: Host name conflict, retrying with fan-39
Aug  3 12:27:43 fan avahi-daemon[1815]: Host name conflict, retrying with fan-40
Aug  3 12:28:03 fan avahi-daemon[1815]: Host name conflict, retrying with fan-41
Aug  3 12:28:23 fan avahi-daemon[1815]: Host name conflict, retrying with fan-42
Aug  3 12:28:43 fan avahi-daemon[1815]: Host name conflict, retrying with fan-43
Aug  3 12:29:03 fan avahi-daemon[1815]: Host name conflict, retrying with fan-44
Aug  3 12:29:23 fan avahi-daemon[1815]: Host name conflict, retrying with fan-45
Aug  3 12:29:43 fan avahi-daemon[1815]: Host name conflict, retrying with fan-46
Aug  3 12:30:03 fan avahi-daemon[1815]: Host name conflict, retrying with fan-47
Aug  3 12:30:23 fan avahi-daemon[1815]: Host name conflict, retrying with fan-48
Aug  3 12:30:43 fan avahi-daemon[1815]: Host name conflict, retrying with fan-49
Aug  3 12:31:03 fan avahi-daemon[1815]: Host name conflict, retrying with fan-50
Aug  3 12:31:23 fan avahi-daemon[1815]: Host name conflict, retrying with fan-51
Aug  3 12:31:43 fan avahi-daemon[1815]: Host name conflict, retrying with fan-52
Aug  3 12:32:03 fan avahi-daemon[1815]: Host name conflict, retrying with fan-53
Aug  3 12:32:23 fan avahi-daemon[1815]: Host name conflict, retrying with fan-54
Aug  3 12:32:43 fan avahi-daemon[1815]: Host name conflict, retrying with fan-55
#771806#20
Date:
2018-09-25 12:05:26 UTC
From:
To:
Hi, we also confirm the bug that seems open upstream
https://github.com/lathiat/avahi/issues/117
Regards!

Guido