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[jerrylamos <jerrylamos@xxxxxxxxxxxx>]

Will try to generate another bug.  Meanwhile here's the printout from
the gdb commands:

.... similar to above....
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `compiz'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f4ebcc67439 in unity::UnityScreen::paintDisplay (
    this=this@entry=0xb0f000)
    at /build/buildd/unity-7.3.1+14.10.20141016/plugins/unityshell/src/unityshell.cpp:837
837	/build/buildd/unity-7.3.1+14.10.20141016/plugins/unityshell/src/unityshell.cpp: No such file or directory.
(gdb) print gpu_deviceUsing host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `compiz'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f4ebcc67439 in unity::UnityScreen::paintDisplay (
    this=this@entry=0xb0f000)
    at /build/buildd/unity-7.3.1+14.10.20141016/plugins/unityshell/src/unityshell.cpp:837
837	/build/buildd/unity-7.3.1+14.10.20141016/plugins/unityshell/src/unityshell.cpp: No such file or directory.
(gdb) print gpu_device
$1 = <optimized out>
(gdb)  print *gpu_device
value has been optimized out
(gdb) print gpu_device->backup_texture0_
value has been optimized out
(gdb) print *(gpu_device->backup_texture0_)
value has been optimized out
(gdb) print gpu_device->backup_texture0_->_NumMipLevel
value has been optimized out
(gdb)  print gpu_device->backup_texture0_->_SurfaceArray
value has been optimized out
(gdb) 

$1 = <optimized out>
(gdb)  print *gpu_device
value has been optimized out
(gdb) print gpu_device->backup_texture0_
value has been optimized out
(gdb) print *(gpu_device->backup_texture0_)
value has been optimized out
(gdb) print gpu_device->backup_texture0_->_NumMipLevel
value has been optimized out
(gdb)  print gpu_device->backup_texture0_->_SurfaceArray
value has been optimized out
(gdb) 

?

BTW, zsync daily build on 11/06, iso booted to same symptoms.

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https://bugs.launchpad.net/bugs/1366351

Title:
  compiz crashed with SIGSEGV in g_closure_invoke() if unity-settings-
  daemon goes away

Status in Compiz:
  Invalid
Status in Unity:
  Fix Committed
Status in “compiz” package in Ubuntu:
  Invalid
Status in “unity” package in Ubuntu:
  Fix Released

Bug description:
  Compiz crashes when unity-settings-daemon goes away. Simple
  reproducer: "killall -SEGV unity-settings-daemon".

  ProblemType: Crash
  DistroRelease: Ubuntu 14.10
  Package: compiz-core 1:0.9.12+14.10.20140812-0ubuntu1
  ProcVersionSignature: Ubuntu 3.16.0-13.19-generic 3.16.1
  Uname: Linux 3.16.0-13-generic x86_64
  NonfreeKernelModules: fglrx
  .tmp.unity.support.test.0:

  ApportVersion: 2.14.7-0ubuntu2
  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
  CurrentDesktop: Unity
  Date: Sat Sep  6 10:48:43 2014
  Disassembly: => 0x0:	Cannot access memory at address 0x0
  DistUpgraded: 2014-09-01 18:03:23,330 DEBUG enabling apt cron job
  DistroCodename: utopic
  DistroVariant: ubuntu
  ExecutablePath: /usr/bin/compiz
  GraphicsCard:
   Advanced Micro Devices, Inc. [AMD/ATI] Curacao XT [Radeon R9 270X] [1002:6810] (prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. Device [1043:04a1]
  InstallationDate: Installed on 2014-03-24 (166 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: MSI MS-7640
  ProcCmdline: compiz
  ProcEnviron:
   PATH=(custom, no user)
   SHELL=/bin/bash
   LD_LIBRARY_PATH=<set>
   LANG=en_US.UTF-8
   XDG_RUNTIME_DIR=<set>
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-13-generic root=UUID=2696ea28-d88b-431c-a1fa-1e0f297ee664 ro quiet splash vt.handoff=7
  SegvAnalysis:
   Segfault happened at: 0x0:	Cannot access memory at address 0x0
   PC (0x00000000) not located in a known VMA region (needed executable region)!
  SegvReason: executing NULL VMA
  Signal: 11
  SourcePackage: compiz
  StacktraceTop:
   ?? ()
   g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
   ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
   g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
   g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
  Title: compiz crashed with SIGSEGV in g_closure_invoke()
  UpgradeStatus: Upgraded to utopic on 2014-09-01 (4 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 10/31/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: V1.15
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: 890FXA-GD70 (MS-7640)
  dmi.board.vendor: MSI
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: MSI
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV1.15:bd10/31/2012:svnMSI:pnMS-7640:pvr1.0:rvnMSI:rn890FXA-GD70(MS-7640):rvr1.0:cvnMSI:ct3:cvr1.0:
  dmi.product.name: MS-7640
  dmi.product.version: 1.0
  dmi.sys.vendor: MSI
  version.compiz: compiz 1:0.9.12+14.10.20140812-0ubuntu1
  version.fglrx-installer: fglrx-installer N/A
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.56-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.2.6-1ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.2.6-1ubuntu3
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu9
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Sat Sep  6 10:48:05 2014
  xserver.configfile: default
  xserver.errors:
   open /dev/dri/card0: No such file or directory
   AIGLX error: failed to open /usr/X11R6/lib64/modules/dri/fglrx_dri.so, error[/usr/X11R6/lib64/modules/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
   AIGLX error: failed to open /usr/lib64/dri/fglrx_dri.so, error[/usr/lib64/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
   AIGLX error: failed to open /usr/X11R6/lib/modules/dri/fglrx_dri.so, error[/usr/X11R6/lib/modules/dri/fglrx_dri.so: cannot open shared object file: No such file or directory]
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.15.1-0ubuntu9
  xserver.video_driver: fglrx

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