[Bug 1602256] Re: sometimes "systemd-coredump[<PID>]: Coredump file descriptor missing." is seen, upstream #2984

[Dimitri John Ledkov]

In that case further troubleshooting is require to figure out what else
is missing to get working coredump support on xenial. As this is not
default functionality in use today on xenial, debugging this
functionality is low priority for me, and is open for any contributor to
pick up and investigate.

** Changed in: systemd (Ubuntu Xenial)
       Status: New => Opinion

** Changed in: systemd (Ubuntu Xenial)
       Status: Opinion => Incomplete

** Changed in: systemd (Ubuntu Xenial)
   Importance: Medium => Wishlist

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Title:
  sometimes "systemd-coredump[<PID>]: Coredump file descriptor missing."
  is seen, upstream #2984

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Xenial:
  Incomplete

Bug description:
  Please include this upstream fix/pull request:

  coredump: use next_datagram_size_fd instead of ioctl(FIONREAD) #3237
  https://github.com/systemd/systemd/pull/3237

  Reported as
  sometimes "systemd-coredump[<PID>]: Coredump file descriptor missing." is seen, upstream #2984
  https://github.com/systemd/systemd/issues/2984

  Or make a release using systemd tag=v230

   :~$ lsb_release -rd
  Description:    Ubuntu 16.04 LTS
  Release:        16.04

  :~$ apt-cache policy systemd
  systemd:
    Installed: 229-4ubuntu6
    Candidate: 229-4ubuntu6
    Version table:
   *** 229-4ubuntu6 500
          500 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       229-4ubuntu4 500
          500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages

  SRU INFORMATION
  ---------------
  This only affects systemd-coredump which we don't use in Ubuntu by default (we use Apport), so the regression potential is very low. There is no straightforward reproducer for this (see upstream bug report: https://github.com/systemd/systemd/issues/2984). But our systemd package has integration tests for coredump: http://anonscm.debian.org/cgit/pkg-systemd/systemd.git/tree/debian/tests/boot-and-services?h=ubuntu-xenial#n436 

  Thus if the updated package still succeeds its autopkgtests, this
  should provide sufficient regression testing for this bug.

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