[Bug 1818340] Re: systemd-networkd core dumps in bionic-proposed

[Mark Shuttleworth]

Further digging in journalctl shows:

-- Unit systemd-networkd.service has begun starting up.
Mar 02 20:37:00 4-ridge-fw1 systemd-networkd[6851]: bond-lan: netdev ready
Mar 02 20:37:00 4-ridge-fw1 systemd-networkd[6851]: bond-net: netdev ready
Mar 02 20:37:00 4-ridge-fw1 systemd-networkd[6851]: bond-peer: netdev ready
Mar 02 20:37:00 4-ridge-fw1 systemd-networkd[6851]: bond-plein: netdev ready
Mar 02 20:37:00 4-ridge-fw1 systemd-networkd[6851]: bond-protea-2: netdev ready
Mar 02 20:37:00 4-ridge-fw1 systemd-networkd[6851]: bond-protea: netdev ready
Mar 02 20:37:00 4-ridge-fw1 systemd-networkd[6851]: bond-peer: Gained IPv6LL
Mar 02 20:37:00 4-ridge-fw1 systemd-networkd[6851]: bond-plein: Gained IPv6LL
Mar 02 20:37:00 4-ridge-fw1 systemd-networkd[6851]: bond-protea-2: Gained IPv6LL
Mar 02 20:37:00 4-ridge-fw1 systemd-networkd[6851]: bond-protea: Gained IPv6LL
Mar 02 20:37:00 4-ridge-fw1 systemd-networkd[6851]: Assertion 'link->state == LINK_STATE_SETTING_ADDRESSES' failed at ../src/network/networkd-link
Mar 02 20:37:00 4-ridge-fw1 systemd[1]: systemd-networkd.service: Main process exited, code=dumped, status=6/ABRT
Mar 02 20:37:00 4-ridge-fw1 systemd[1]: systemd-networkd.service: Failed with result 'core-dump'.
Mar 02 20:37:00 4-ridge-fw1 systemd[1]: Failed to start Network Service.

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https://bugs.launchpad.net/bugs/1818340

Title:
  systemd-networkd core dumps in bionic-proposed

Status in systemd package in Ubuntu:
  New

Bug description:
  I run a number of servers with -proposed enabled and have seen a bunch
  of this today:

  Mar 02 16:20:58 4-ridge-fw1 systemd[1]: systemd-networkd.service: Failed with result 'core-dump'.
  Mar 02 16:20:58 4-ridge-fw1 systemd[1]: Failed to start Network Service.

  These machines have numerous bonds, so I suspect that's a factor.

  So far I have only observed the issue on machines with -proposed
  enabled so I suspect it is a problem with systemd 237-3ubuntu10.14

  Example netplan.yaml attached.

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