compiz crashed with SIGSEGV in shared_ptr() from DecorWindow::update() from DecorScreen::handleEvent()

[Tim Casey]

tried to relaunch Unity

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: compiz-core 1:0.9.7.0+bzr3035-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-18.29-generic-pae 3.2.9
Uname: Linux 3.2.0-18-generic-pae i686
.tmp.unity.support.test.1:

ApportVersion: 1.94.1-0ubuntu2
Architecture: i386
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,grid,snap,move,resize,place,session,mousepoll,imgpng,vpswitch,regex,animation,gnomecompat,unitymtgrabhandles,expo,wall,workarounds,ezoom,fade,scale,unityshell]
CompositorRunning: compiz
Date: Tue Mar 13 14:23:02 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
ExecutablePath: /usr/bin/compiz
GraphicsCard: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter [80ee:beef] (prog-if 00 [VGA controller])
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20120309)
LocalLibraries: /opt/VBoxGuestAdditions-4.1.8/lib/VBoxOGLfeedbackspu.so /opt/VBoxGuestAdditions-4.1.8/lib/VBoxOGL.so /opt/VBoxGuestAdditions-4.1.8/lib/VBoxOGLcrutil.so /opt/VBoxGuestAdditions-4.1.8/lib/VBoxOGLerrorspu.so /opt/VBoxGuestAdditions-4.1.8/lib/VBoxOGLpackspu.so /opt/VBoxGuestAdditions-4.1.8/lib/VBoxOGLpassthroughspu.so
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 002: ID 80ee:0021 VirtualBox USB Tablet
MachineType: innotek GmbH VirtualBox
ProcCmdline: compiz --replace
ProcEnviron:
 TERM=xterm
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-18-generic-pae root=UUID=12708e0d-1fe8-4f5c-8135-b30d34481c92 ro quiet splash vt.handoff=7
Renderer: Software
SegvAnalysis:
 Segfault happened at: 0xb1f9d2dd <_ZN11DecorWindow6updateEb+125>: mov (%eax),%edx
 PC (0xb1f9d2dd) ok
 source "(%eax)" (0x003a003a) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 DecorWindow::update(bool) () from /usr/lib/compiz/libdecor.so
 DecorScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libdecor.so
 CompScreen::handleEvent(_XEvent*) () from /usr/lib/libcompiz_core.so.ABI-20120228
 SnapScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libsnap.so
 CompScreen::handleEvent(_XEvent*) () from /usr/lib/libcompiz_core.so.ABI-20120228
Title: compiz crashed with SIGSEGV in DecorWindow::update()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 12/01/2006
dmi.bios.vendor: innotek GmbH
dmi.bios.version: VirtualBox
dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:
dmi.product.name: VirtualBox
dmi.product.version: 1.2
dmi.sys.vendor: innotek GmbH
version.compiz: compiz 1:0.9.7.0+bzr3035-0ubuntu1
version.libdrm2: libdrm2 2.4.30-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.1-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.1-0ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.99.901+git20120126-0ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

[Apport retracing service (apport)]

StacktraceTop:
 shared_ptr (this=<optimized out>) at /usr/include/boost/smart_ptr/shared_ptr.hpp:168
 operator= (r=<optimized out>, this=<optimized out>) at /usr/include/boost/smart_ptr/shared_ptr.hpp:305
 DecorWindow::update (this=0xb048380, allowDecoration=true) at /build/buildd/compiz-0.9.7.0+bzr3035/plugins/decor/src/decor.cpp:1393
 DecorScreen::handleEvent (this=0xb50a130, event=0xa0eff20) at /build/buildd/compiz-0.9.7.0+bzr3035/plugins/decor/src/decor.cpp:2483
 CompScreen::handleEvent (this=0xa025490, event=0xa0eff20) at /build/buildd/compiz-0.9.7.0+bzr3035/src/event.cpp:1050

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Will Cooke (willcooke)]

As part of the big bug clear up for 16.04 LTS I am marking this bug as Wont Fix.
These types of crasher are better handled by errors.ubutnu.com which can collate similar crash reports to help us identify persitent bugs rather than one-off crashes.
Sorry we are not able to help with this specific issue. If you are still experiencing this crash, please re-open the bug and add the tag "desktop-bugscrub-reopened". See https://wiki.ubuntu.com/BigDesktopBugScrub for more information.