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[Bug 1226646] [NEW] unity-panel-service crashed with SIGSEGV in g_hash_table_foreach()

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Public bug reported:

Clicked on clock to open calendar. An empty frame appeared, the panel
froze and after some seconds the crash report popped up.

Saucy wkth standardX (no Mir) and Unity desktop.

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: unity-services 7.1.0+13.10.20130903.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-7.13-generic 3.11.0
Uname: Linux 3.11.0-7-generic x86_64
.tmp.unity.support.test.0:
 
ApportVersion: 2.12.1-0ubuntu4
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Tue Sep 17 16:59:52 2013
DistUpgraded: Fresh install
DistroCodename: saucy
DistroVariant: ubuntu
ExecutablePath: /usr/lib/unity/unity-panel-service
GraphicsCard:
 Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:2205]
InstallationDate: Installed on 2013-06-05 (104 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130605)
MachineType: LENOVO 334729G
MarkForUpload: True
ProcCmdline: /usr/lib/unity/unity-panel-service
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-7-generic root=UUID=80d8eb01-b0c3-47cc-8dba-1ed122b2be4f ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x4061eb:	mov    0x0(%rbp),%rdx
 PC (0x004061eb) ok
 source "0x0(%rbp)" (0x7fff0000004c) not located in a known VMA region (needed readable region)!
 destination "%rdx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 ?? ()
 ?? () from /usr/lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0
 g_hash_table_foreach () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0
Title: unity-panel-service crashed with SIGSEGV in g_hash_table_foreach()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
dmi.bios.date: 02/05/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: GDET92WW (1.52 )
dmi.board.asset.tag: Not Available
dmi.board.name: 334729G
dmi.board.vendor: LENOVO
dmi.board.version: Win8 Pro DPK TPG
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrGDET92WW(1.52):bd02/05/2013:svnLENOVO:pn334729G:pvrThinkPadTwist:rvnLENOVO:rn334729G:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 334729G
dmi.product.version: ThinkPad Twist
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.10+13.10.20130828.2-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.46-1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.2-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.2-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.14.2.901-2ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu6
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.14-4ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1
xserver.bootTime: Thu Sep 12 13:34:23 2013
xserver.configfile: default
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id                                 890 
 vendor                                     LGD
xserver.version: 2:1.14.2.901-2ubuntu4

** Affects: unity (Ubuntu)
     Importance: High
         Status: New


** Tags: amd64 apport-crash compiz-0.9 need-amd64-retrace saucy third-party-packages ubuntu

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https://bugs.launchpad.net/bugs/1226646

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

Status in “unity” package in Ubuntu:
  New

Bug description:
  Clicked on clock to open calendar. An empty frame appeared, the panel
  froze and after some seconds the crash report popped up.

  Saucy wkth standardX (no Mir) and Unity desktop.

  ProblemType: Crash
  DistroRelease: Ubuntu 13.10
  Package: unity-services 7.1.0+13.10.20130903.1-0ubuntu1
  ProcVersionSignature: Ubuntu 3.11.0-7.13-generic 3.11.0
  Uname: Linux 3.11.0-7-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.12.1-0ubuntu4
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  Date: Tue Sep 17 16:59:52 2013
  DistUpgraded: Fresh install
  DistroCodename: saucy
  DistroVariant: ubuntu
  ExecutablePath: /usr/lib/unity/unity-panel-service
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:2205]
  InstallationDate: Installed on 2013-06-05 (104 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130605)
  MachineType: LENOVO 334729G
  MarkForUpload: True
  ProcCmdline: /usr/lib/unity/unity-panel-service
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-7-generic root=UUID=80d8eb01-b0c3-47cc-8dba-1ed122b2be4f ro quiet splash vt.handoff=7
  SegvAnalysis:
   Segfault happened at: 0x4061eb:	mov    0x0(%rbp),%rdx
   PC (0x004061eb) ok
   source "0x0(%rbp)" (0x7fff0000004c) not located in a known VMA region (needed readable region)!
   destination "%rdx" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: unity
  StacktraceTop:
   ?? ()
   ?? () from /usr/lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0
   g_hash_table_foreach () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
   ?? () from /usr/lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0
   ?? () from /usr/lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0
  Title: unity-panel-service crashed with SIGSEGV in g_hash_table_foreach()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
  dmi.bios.date: 02/05/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: GDET92WW (1.52 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 334729G
  dmi.board.vendor: LENOVO
  dmi.board.version: Win8 Pro DPK TPG
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrGDET92WW(1.52):bd02/05/2013:svnLENOVO:pn334729G:pvrThinkPadTwist:rvnLENOVO:rn334729G:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 334729G
  dmi.product.version: ThinkPad Twist
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.10+13.10.20130828.2-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.46-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.2-1ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.2-1ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.14.2.901-2ubuntu4
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu6
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.14-4ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1
  xserver.bootTime: Thu Sep 12 13:34:23 2013
  xserver.configfile: default
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                 890 
   vendor                                     LGD
  xserver.version: 2:1.14.2.901-2ubuntu4

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