[Bug 1820771] Re: systemd-networkd exhibits core dump on greater than 1024 addresses

[Mathieu Trudel-Lapierre]

Reassigning to systemd -- netplan isn't limited, but if systemd-networkd
crashes that's a bug in systemd-networkd.

** Also affects: systemd (Ubuntu)
   Importance: Undecided
       Status: New

** No longer affects: netplan

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Title:
  systemd-networkd exhibits core dump on greater than 1024 addresses

Status in systemd package in Ubuntu:
  New

Bug description:
  Attempting to add 2000 IP addresses.  However, after the 1024 mark,
  systemd-networkd reports a core dump and abandons the IP
  configuration.  systemd-networkd status:

  ---------------------------
   systemd-networkd.service - Network Service
     Loaded: loaded (/lib/systemd/system/systemd-networkd.service; enabled-runtime; vendor preset: enabled)
     Active: failed (Result: core-dump) since Mon 2019-03-18 19:19:00 EDT; 9s ago
       Docs: man:systemd-networkd.service(8)
    Process: 2578 ExecStart=/lib/systemd/systemd-networkd (code=dumped, signal=ABRT)
   Main PID: 2578 (code=dumped, signal=ABRT)

  Mar 18 19:19:00 hostname systemd[1]: Failed to start Network Service.
  Mar 18 19:19:00 hostname systemd[1]: systemd-networkd.service: Service has no hold-off time, scheduling restart.
  Mar 18 19:19:00 hostname systemd[1]: systemd-networkd.service: Scheduled restart job, restart counter is at 5.
  Mar 18 19:19:00 hostname systemd[1]: Stopped Network Service.
  Mar 18 19:19:00 hostname systemd[1]: systemd-networkd.service: Start request repeated too quickly.
  Mar 18 19:19:00 hostname systemd[1]: systemd-networkd.service: Failed with result 'core-dump'.
  Mar 18 19:19:00 hostname systemd[1]: Failed to start Network Service.
  ---------------------------

  Is netplan not expected to support more than 1024 addresses?  Is it
  possible that it could be made to?

  Thanks.

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