Arch Linux

Description:

After upgrading to systemd 236.0-2 from 235.38-4, systemd-networkd started crashing on bootup, and none of my network interfaces work. Reverting systemd solves the problem.

Additional info:
* package version(s)

systemd-236.0-2

* config and/or log files etc.

These are the last lines that happen before the crash:

Jan 05 22:15:16 garage.uun.org systemd-networkd[679]: rtnl: received address with invalid family 129, ignoring.
Jan 05 22:15:16 garage.uun.org systemd-networkd[679]: rtnl: received address with invalid family 128, ignoring.
Jan 05 22:15:16 garage.uun.org systemd[1]: systemd-networkd.service: Main process exited, code=killed, status=11/SEGV
Jan 05 22:15:16 garage.uun.org systemd[1]: systemd-networkd.service: Failed with result 'signal'.
Jan 05 22:15:16 garage.uun.org systemd[1]: Failed to start Network Service.
Jan 05 22:15:16 garage.uun.org systemd[1]: systemd-networkd.service: Service has no hold-off time, scheduling restart.
Jan 05 22:15:16 garage.uun.org systemd[1]: systemd-networkd.service: Scheduled restart job, restart counter is at 1.
Jan 05 22:15:16 garage.uun.org systemd[1]: Stopped Network Service.


Steps to reproduce:

It's a little painful to narrow this down, because I have a complex network setup that is a pain to reproduce manually, so basically I have no network if I don't downgrade systemd. However, this could be caused by the fact that I'm using wireguard, bridges, and/or an IPv6 tunnel. Also, because of how systemd works, the configuration is spread over multiple files in /etc/systemd/network, but here they are:


*** /etc/systemd/network/br0.netdev:

[NetDev]
Name=br0
Kind=bridge

*** /etc/systemd/network/br0.network:

[Match]
Name=br0

[Network]
Address=172.30.0.4/16

Address=2001:aaaa:bbbb::4/64
IPForward=ipv6

[Route]
Gateway=2001:aaaa:bbbb::3
Destination=2001:aaaa:bbbb:30::/60

[Route]
Gateway=2001:aaaa:bbbb::6
Destination=2001:aaaa:bbbb:60::/60

[Route]
Gateway=2001:aaaa:bbbb::8
Destination=2001:aaaa:bbbb:80::/60

[Route]
Destination=0.0.0.0/0
Gateway=172.30.0.1
Metric=4096

[Route]
Destination=172.16.0.0/12
Gateway=172.30.0.1

[Route]
Destination=0.0.0.0/0
Gateway=172.30.0.1
Table=252

[Route]
Destination=172.30.0.0/16
Scope=link
Table=252

*** /etc/systemd/network/enp2s0.network:

[Match]
Name=enp2s0

[Network]
DHCP=ipv4

[DHCP]
UseDNS=false

*** /etc/systemd/network/enp3s0.network:

[Match]
Name=enp3s0

[Network]
Bridge=br0

*** /etc/systemd/network/kvm0.netdev:

[NetDev]
Name=kvm0
Kind=tap

[Tap]
User=kvm
Group=kvm

*** /etc/systemd/network/kvm0.network:

[Match]
Name=kvm0

[Network]
Bridge=br0

*** /etc/systemd/network/sixbone.netdev:

[Match]

[NetDev]
Name=sixbone
Kind=sit

[Tunnel]
Local=any
Remote=1.2.3.4
TTL=255

*** /etc/systemd/network/sixbone.network:

[Match]
Name=sixbone

[Network]
IPForward=ipv6

[Route]
Destination=::/0