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[Chris J Arges <1302955@xxxxxxxxxxxxxxxxxx>]

The verification of the Stable Release Update for unity has completed
successfully and the package has now been released to -updates.
Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report.  In
the event that you encounter a regression using the package from
-updates please report a new bug using ubuntu-bug and tag the bug report
regression-update so we can easily find any regressions.

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https://bugs.launchpad.net/bugs/1302955

Title:
  upstart user session leaks all the dbus events it receives

Status in Unity:
  Fix Released
Status in Unity 7.2 series:
  In Progress
Status in unity package in Ubuntu:
  Fix Released
Status in upstart package in Ubuntu:
  Confirmed
Status in unity source package in Trusty:
  Fix Released

Bug description:
  [Impact]

  The unity-panel-service process has been caching D-Bus messages sent
  from upstart, effectively leaking memory.  The solution replaces the
  offending code with a single upstart event emission.

  [Test Case]

  0. Make sure there is a user session job with a dbus rule (eg unity-greeter-session-broadcast)
  1. Install and run system-load-indicator (indicator-multiload)
  2. Set the update interval to 100ms
  3. Now watch the memory use of init --user increase by 100kb per second
  4. Also open up upstart-monitor to see all the dbus messages being sent

  [Regression Potential]

  Some kind of hidden functionality depending on upstart events sent
  through D-Bus to the unity-panel-service may have become disconnected.
  Unlikely.

  [Other Info]

  The fix for Ubuntu 14.04 LTS was cherry picked from the Ubuntu "Vivid
  Vervet" dev release where it has been in regular use for some time
  without apparent regression.

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