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[Daniel van Vugt <daniel.van.vugt@xxxxxxxxxxxxx>]

** Branch linked: lp:~vanvugt/mir/fix-1471909

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https://bugs.launchpad.net/bugs/1471909

Title:
  MultiThreadedCompositor::destroy_compositing_threads hangs/deadlocks
  on shutdown or display reconfiguration

Status in Mir:
  In Progress
Status in Mir 0.13 series:
  Triaged
Status in Mir 0.14 series:
  Triaged
Status in mir package in Ubuntu:
  Triaged

Bug description:
  Try revision 211 of lp:~unity-team/unity-system-compositor/toggle-
  cursor2/

  The desire was to resize all surfaces to the size of the smallest
  attached display.

  usc::WindowManager implements the mir::shell::WindowManagement
  interface. I thought it logical to implement this resizing in
  add_display. However it causes a deadlock when plugging in a second
  display, while the compositor is stopping, see this backtrace:

  http://pastebin.ubuntu.com/11831907/

  I suspect Threads 8 and Thread 1 are blocking eachother.

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