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[Alexandros Frantzis <alexandros.frantzis@xxxxxxxxxxxxx>]

I am getting similar symptoms (media-hub-server high cpu) , although I
didn't see unity8 restarting (perhaps it did and I didn't notice?).

I have attached a tarball of strace (clipped because it was just the
same after a point), gdb backtrace and a core file generated from inside
gdb for media-hub-server.

** Attachment added: "media-hub-server-debug.tar.xz"
   https://bugs.launchpad.net/ubuntu/+source/dbus-cpp/+bug/1380848/+attachment/4252111/+files/media-hub-server-debug.tar.xz

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https://bugs.launchpad.net/bugs/1380848

Title:
  [TOPBLOCKER] Apps and services use large amount of CPU after unity8
  resets

Status in Media Hub:
  Triaged
Status in “dbus-cpp” package in Ubuntu:
  New

Bug description:
  I noticed that media-hub-service can get into a state where it uses a
  large amount of CPU.

  Steps to reproduce
  1) Start music-app
  2) Play music
  3) Pause music
  4) Close the music-app
  5) $ pkill unity8 (to emulate unity crashing a resetting)

  Notice that media-hub-service is now using a large amount of CPU, note
  this [0] is the media-hub.log at the time.

  The device has to be reset to get the CPU usage back to normal.

  0 - http://pastebin.ubuntu.com/8553411/

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