[Bug 1718444] Re: systemd-sysctl in Xenial is not obeying the order of the sysctls

[Brian Murray]

Hello Philipp, or anyone else affected,

Accepted systemd into xenial-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/systemd/229-4ubuntu21.2 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, without details of
your testing we will not be able to proceed.

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

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/1718444

Title:
  systemd-sysctl in Xenial is not obeying the order of the sysctls

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

Bug description:
  [Impact]

   * sysctls are applied out of order

  [Test Case]

   * Monitor that sysctls are applied in-order, instead of out of order
  / random order.

  [Regression Potential]

   * Cherrypick of an upstream patch which is present in v232+ and in
  use in Ubuntu in later releases. The code changes are minimal,
  updating s/Hashmap/OrderedHashmap/ which is implemented and available
  in xenial's systemd.

  https://github.com/systemd/systemd/commit/886cf982d3018f7451f0548dadbc05bd2d583bb6

  [Other Info]
   
   * Original bug report.

  systemd-sysctl in Xenial forces itself over procps by shipping a link
  for procps.service to systemd-sysctl.service. However, it does not
  obey the order both of the files and also of the sysctls within the
  files. Instead it uses a simple hashmap. As it turns out that's fixed
  upstream and systemd master uses an ordered hashmap because of this,
  which at least preserves order within single files. Traditionally
  files in sysctl.d have been prefixed with numbers to ensure an order
  and that's now completely non-deterministic on Xenial.

  Relevant upstream commit:
  https://github.com/systemd/systemd/commit/886cf982d3018f7451f0548dadbc05bd2d583bb6

  Note that conf_files_list_nulstr in master sorts the configuration
  files using strcmp, so even order of configuration files should be
  obeyed.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1718444/+subscriptions