compiz crashed with SIGSEGV in CompositeScreen::compositingActive()

[Anadon]

after restart after the last updates, lost unity. As in unity was no longer installed. I re-installed it using "sudo apt-get install unity" and then tried to run it from the terminal using "unity" and crash.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: compiz-core 1:0.9.7.0~bzr2995-0ubuntu4
ProcVersionSignature: Ubuntu 3.2.0-16.25-generic 3.2.6
Uname: Linux 3.2.0-16-generic x86_64
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_64 Kernel Module 295.20 Mon Feb 6 21:07:30 PST 2012
 GCC version: gcc version 4.6.2 (Ubuntu/Linaro 4.6.2-14ubuntu1)
.tmp.unity.support.test.1:

ApportVersion: 1.91-0ubuntu1
Architecture: amd64
CompizPlugins: [core,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,resize,fade,unitymtgrabhandles,scale,session,unityshell]
CompositorRunning: compiz
Date: Sat Feb 18 10:59:45 2012
DistUpgraded: Log time: 2012-02-05 12:02:13.946073
DistroCodename: precise
DistroVariant: ubuntu
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 NVIDIA Corporation G92 [GeForce GTX 285M] [10de:060f] (rev a2) (prog-if 00 [VGA controller])
   Subsystem: CLEVO/KAPOK Computer Device [1558:8687]
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
JockeyStatus:
 xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Disabled, Not in use)
 pkg:sl-modem-daemon - Software modem (Proprietary, Disabled, Not in use)
 xorg:nvidia_current_updates - NVIDIA accelerated graphics driver (post-release updates) (Proprietary, Disabled, Not in use)
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
 Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
 Bus 001 Device 003: ID 147e:1001 Upek
MachineType: CLEVO CO. W860CU
ProcCmdline: compiz --replace
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-16-generic root=UUID=be6dc51b-9e36-45b6-a234-8bed88dbf6dc ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x7f0b0b5ada20 <_ZN15CompositeScreen17compositingActiveEv>: mov 0x60(%rdi),%rax
 PC (0x7f0b0b5ada20) ok
 source "0x60(%rdi)" (0x00000060) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 CompositeScreen::compositingActive() () from /usr/lib/compiz/libcomposite.so
 PrivateCompositeWindow::PrivateCompositeWindow(CompWindow*, CompositeWindow*) () from /usr/lib/compiz/libcomposite.so
 CompositeWindow::CompositeWindow(CompWindow*) () from /usr/lib/compiz/libcomposite.so
 PluginClassHandler<CompositeWindow, CompWindow, 4>::get(CompWindow*) () from /usr/lib/compiz/libopengl.so
 PrivateGLWindow::PrivateGLWindow(CompWindow*, GLWindow*) () from /usr/lib/compiz/libopengl.so
Title: compiz crashed with SIGSEGV in CompositeScreen::compositingActive()
UnitySupportTest: Error: command ['/usr/lib/nux/unity_support_test', '-p', '-f'] failed with exit code 1: Error: no composite extension
UpgradeStatus: Upgraded to precise on 2012-02-05 (12 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 05/04/2010
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: CALPELLACRB.86C.0000.X.0000000000
dmi.board.asset.tag: Tag 12345
dmi.board.name: W860CU
dmi.board.vendor: CLEVO CO.
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: CLEVO CO.
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrCALPELLACRB.86C.0000.X.0000000000:bd05/04/2010:svnCLEVOCO.:pnW860CU:pvrNotApplicable:rvnCLEVOCO.:rnW860CU:rvrNotApplicable:cvnCLEVOCO.:ct9:cvrN/A:
dmi.product.name: W860CU
dmi.product.version: Not Applicable
dmi.sys.vendor: CLEVO CO.
version.compiz: compiz 1:0.9.7.0~bzr2995-0ubuntu4
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.30-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0~rc2-0ubuntu5
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0~rc2-0ubuntu5
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu3
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)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #833729, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.