Comment 0 for bug 1602256

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