[Bug 2012943] Re: Systemd-resolved is crashing

[Nick Rosbrook]

I have prepared the fix for this in git because I have more context from
other discussions, but can you please add a bit more detail here? E.g.
at least provide the stack trace you have observed which suggests the
above patch is correct?

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https://bugs.launchpad.net/bugs/2012943

Title:
  Systemd-resolved is crashing

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Focal:
  Triaged

Bug description:
  [ Impact ]

  The continuous systemd-resolved crashes delay/hang the device startup.
  And this leads to unresponsive devices in the system.

  [ Test Plan ]

  The exact steps to reproduce this issue are still not known.
  But we see this crash only in Static IP Addressing mode enabled, where systemd-resolved is enabled for LLMNR service.
  But we were not able to see this crash in DHCP mode.

  Steps to reproduce:
  1) Powercycle the device.
  2) Soft-reboot.

  [ Where problems could occur ]

  https://github.com/systemd/systemd/commit/73bfd7be042cc63e7649242b377ad494bf74ea4b.
  This commit is resolving the issue which is observed.

  Please refer to the above commit to assess the risk involved.

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