Hello Stéphane, or anyone else affected,

Accepted systemd into xenial-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/systemd/229-4ubuntu20
in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-xenial to verification-done-xenial. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-xenial. In either case, details of your
testing will help us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: systemd (Ubuntu Xenial)
       Status: In Progress => Fix Committed

** Tags added: verification-needed verification-needed-xenial

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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/1709536

Title:
  snapd 2.26.14 on ubuntu-core won't start in containers anymore

Status in Snap Layer:
  New
Status in snapd:
  New
Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Xenial:
  Fix Committed
Status in systemd source package in Artful:
  Fix Released

Bug description:
  [Impact]

  Systemd treats a failure to apply the requested Nice value as critical
  to unit startup.

  Unprivileged LXD containers do not allow the use of negative nice
  values. snapd will fail to start inside containers now that snapd uses
  a negative Nice value.

  Aug 09 05:54:37 core systemd[1]: snapd.service: Main process exited, 
code=exited, status=201/NICE
  Aug 09 05:54:37 core systemd[1]: snapd.service: Unit entered failed state.
  Aug 09 05:54:37 core systemd[1]: snapd.service: Failed with result 
'exit-code'.

  The fix is for systemd to ignore permission errors when attempting to
  setup such custom nice values in containers.

  I have confirmed that setting up a unit override by hand which sets
  Nice = 0 does resolve the problem.

  [Test Case]

  Boot a Xenial image in lxd:

  $ lxc launch xenial x1
  $ lxc exec x1 -- systemctl --state=failed

  Observe failures for snapd :

  ● snapd.service loaded failed failed Snappy daemon
  ● snapd.socket loaded failed failed Socket activation for snapp

  Install updated systemd from -proposed and get status: (lxc exec
  <container> reboot; lxc exec <container> systemctl status)

  State: running
  Jobs: 0 queued
  Failed: 0 units

  [Regression Potential]

  Services will now run with a Nice value other than what was specified
  in the unit if it cannot be changed for some reason.

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