[Pkg-utopia-maintainers] Bug#929010: avahi-daemon: /etc/network/if-post-down.d/avahi-daemon is slow on eth0

[Vincent Lefevre]

Package: avahi-daemon
Version: 0.7-4+b1
Severity: normal

/etc/network/if-post-down.d/avahi-daemon takes 12 seconds to complete,
slowing the shutdown:

[...]
May 15 10:23:47 zira dhclient[19399]: DHCPRELEASE of 192.168.1.3 on eth0 to 192.168.1.1 port 67
May 15 10:23:47 zira ifdown[19369]: DHCPRELEASE of 192.168.1.3 on eth0 to 192.168.1.1 port 67
May 15 10:23:47 zira root[19415]: /etc/dhcp/dhclient-enter-hooks.d/google-tcp-dns with reason=RELEASE
May 15 10:23:47 zira root[19418]: /etc/dhcp/dhclient-exit-hooks.d/0google-tcp-dns with reason=RELEASE
May 15 10:23:47 zira ifdown[19369]: /bin/ip link set dev eth0 down
May 15 10:23:47 zira kernel: e1000e: eth0 NIC Link is Down
May 15 10:23:47 zira ifdown[19369]: /bin/run-parts --verbose /etc/network/if-post-down.d
May 15 10:23:47 zira ifdown[19369]: run-parts: executing /etc/network/if-post-down.d/0ifupdown
May 15 10:23:47 zira ifupdown[19431]: IFACE=eth0 ADDRFAM=inet METHOD=dhcp PHASE=post-down
May 15 10:23:47 zira ifdown[19369]: run-parts: executing /etc/network/if-post-down.d/avahi-daemon
May 15 10:23:59 zira ifdown[19369]: run-parts: executing /etc/network/if-post-down.d/wireless-tools
May 15 10:23:59 zira ifdown[19369]: run-parts: executing /etc/network/if-post-down.d/wpasupplicant
[...]

-- System Information:
Debian Release: 10.0
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'stable-updates'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-5-amd64 (SMP w/8 CPU cores)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=POSIX (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            3.118
ii  bind9-host [host]  1:9.11.5.P4+dfsg-5
ii  dbus               1.12.12-1
ii  libavahi-common3   0.7-4+b1
ii  libavahi-core7     0.7-4+b1
ii  libc6              2.28-10
ii  libcap2            1:2.25-2
ii  libdaemon0         0.14-7
ii  libdbus-1-3        1.12.12-1
ii  libexpat1          2.2.6-1
ii  lsb-base           10.2019031300

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

Versions of packages avahi-daemon suggests:
ii  avahi-autoipd  0.7-4+b1

-- no debconf information