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[Andrea Azzarone <863720@xxxxxxxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 1040660 ***
    https://bugs.launchpad.net/bugs/1040660

** This bug has been marked a duplicate of bug 1040660
   unity-panel-service crashed with SIGSEGV in panel_indicator_entry_accessible_get_n_children() from append_cache_item() from g_hash_table_foreach()

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https://bugs.launchpad.net/bugs/863720

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

Status in Unity:
  Confirmed
Status in unity package in Ubuntu:
  Confirmed

Bug description:
  Log into Unity 2d with orca, and try navigating the launcher and dash.
  This bug is highly reproducible.

  ProblemType: Crash
  DistroRelease: Ubuntu 11.10
  Package: unity-services 4.20.0-0ubuntu2
  ProcVersionSignature: Ubuntu 3.0.0-12.19-generic-pae 3.0.4
  Uname: Linux 3.0.0-12-generic-pae i686
  NonfreeKernelModules: nvidia
  .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
  .proc.driver.nvidia.registry: Binary: ""
  .proc.driver.nvidia.version:
   NVRM version: NVIDIA UNIX x86 Kernel Module  280.13  Wed Jul 27 16:55:43 PDT 2011
   GCC version:  gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)
  .tmp.unity.support.test.0:
   
  ApportVersion: 1.23-0ubuntu2
  Architecture: i386
  CompizPlugins: [core,bailer,detection,composite,opengl,decor,grid,compiztoolbox,gnomecompat,regex,move,animation,vpswitch,resize,workarounds,imgpng,snap,mousepoll,place,wall,fade,unitymtgrabhandles,session,expo,ezoom,scale,unityshell]
  CompositorRunning: None
  Date: Fri Sep 30 18:41:59 2011
  DistUpgraded: Log time: 2011-09-17 17:07:19.818068
  DistroCodename: oneiric
  DistroVariant: ubuntu
  ExecutablePath: /usr/lib/unity/unity-panel-service
  GraphicsCard:
   nVidia Corporation G72 [GeForce 7300 LE] [10de:01d1] (rev a1) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:0405]
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Beta i386 (20100901.1)
  MachineType: Dell Inc. Dell DM061
  ProcCmdline: /usr/lib/unity/unity-panel-service
  ProcEnviron:
   SHELL=/bin/bash
   LANG=en_US.UTF-8
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic-pae root=UUID=5c17e2e5-c4ff-4c50-b45f-ad377fea3db7 ro quiet splash vt.handoff=7
  SegvAnalysis:
   Segfault happened at: 0x804c7c6:	mov    (%ebx),%edx
   PC (0x0804c7c6) ok
   source "(%ebx)" (0x00000038) not located in a known VMA region (needed readable region)!
   destination "%edx" ok
  SegvReason: reading NULL VMA
  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/gtk-3.0/modules/libatk-bridge.so
   g_hash_table_foreach () from /lib/i386-linux-gnu/libglib-2.0.so.0
   spi_cache_foreach () from /usr/lib/gtk-3.0/modules/libatk-bridge.so
  Title: unity-panel-service crashed with SIGSEGV in atk_object_get_n_accessible_children()
  UpgradeStatus: Upgraded to oneiric on 2011-09-17 (13 days ago)
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare vboxusers
  XsessionErrors:
   (nautilus:1895): Gtk-CRITICAL **: gtk_action_set_visible: assertion `GTK_IS_ACTION (action)' failed
   (nautilus:1895): Gtk-CRITICAL **: gtk_action_set_visible: assertion `GTK_IS_ACTION (action)' failed
  dmi.bios.date: 10/25/2006
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 2.0.4
  dmi.board.name: 0WG864
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 6
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr2.0.4:bd10/25/2006:svnDellInc.:pnDellDM061:pvr:rvnDellInc.:rn0WG864:rvr:cvnDellInc.:ct6:cvr:
  dmi.product.name: Dell DM061
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu1
  version.libdrm2: libdrm2 2.4.26-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
  version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

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