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[Sebastien Bacher <seb128@xxxxxxxxxx>]

seems a bit similar to bug #1040660 or to the bug fixed with:
http://bazaar.launchpad.net/~unity-team/unity/trunk/revision/2775

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https://bugs.launchpad.net/bugs/1024871

Title:
  unity-panel-service crashed with SIGSEGV in
  panel_indicator_entry_accessible_get_n_children()

Status in “unity” package in Ubuntu:
  Confirmed

Bug description:
  Unity is gone. No launcher, no menues.

  i did:

  - supend laptop (laptop was attached to docking station)
  - power on laoptop
  - press docking station button to detach laptop
  - detach laptop

  
  Now i started ubuntu --advanced-debug from tty1. Attached is the output of gdb. I can reproduce the issue. i switch to tty1, start the program in gdb with "run" and the all seems to work. When i switch bach to X (ctrl+alt+7), my program windows disappear and come back. then back to tty1 i have the crash output.

  ProblemType: Crash
  DistroRelease: Ubuntu 12.10
  Package: unity-services 6.0.0-0ubuntu1
  ProcVersionSignature: Ubuntu 3.5.0-4.4-generic 3.5.0-rc6
  Uname: Linux 3.5.0-4-generic i686
  ApportVersion: 2.3-0ubuntu4
  Architecture: i386
  CrashCounter: 1
  Date: Sat Jul 14 16:05:26 2012
  ExecutablePath: /usr/lib/unity/unity-panel-service
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423.2)
  ProcCmdline: /usr/lib/unity/unity-panel-service
  SegvAnalysis: Failure: Unknown offset literal: [edx]
  Signal: 11
  SourcePackage: unity
  StacktraceTop:
   ?? ()
   atk_object_get_n_accessible_children () from /usr/lib/i386-linux-gnu/libatk-1.0.so.0
   ?? () from /usr/lib/i386-linux-gnu/libatk-bridge-2.0.so.0
   g_idle_dispatch (source=source@entry=0x9822d68, callback=0xb69a6e40, user_data=0x8e5a2e0) at /build/buildd/glib2.0-2.33.3/./glib/gmain.c:4657
   g_main_dispatch (context=0x8cdb668) at /build/buildd/glib2.0-2.33.3/./glib/gmain.c:2539
  Title: unity-panel-service crashed with SIGSEGV in atk_object_get_n_accessible_children()
  UpgradeStatus: Upgraded to quantal on 2012-06-23 (21 days ago)
  UserGroups: adm cdrom dip kvm libvirtd lpadmin plugdev sambashare sudo vboxusers

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