compiz crashed with SIGSEGV in nux::IOpenGLFrameBufferObject::Deactivate()

[Barkhat]

Binary package hint: compiz

using the latest upgrade of natty alpha--started up after the upgrade and got this error. also, unity is missing and so cannot access programs or applications or folders.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: compiz-core 1:0.9.2.1+glibmainloop4-0ubuntu8
ProcVersionSignature: Ubuntu 2.6.38-1.28-generic 2.6.38-rc2
Uname: Linux 2.6.38-1-generic i686
Architecture: i386
CrashCounter: 1
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1280x800
 edid-base64: AP///////wBMo0U2AAAAAAAPAQOAIRV4Cof1lFdPjCcnUFQAAAABAQEBAQEBAQEBAQEBAQEB7hoAgFAgEDAQMBMAS88QAAAZAAAADwAAAAAAAAAAACOHAmQAAAAA/gBTQU1TVU5HCiAgICAgAAAA/gBMVE4xNTRYMy1MMDUKAGE=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
Date: Tue Feb 1 16:53:53 2011
DistUpgraded: Yes, recently upgraded Log time: 2011-01-12 13:09:09.862094
DistroCodename: natty
DistroVariant: ubuntu
DkmsStatus: vboxhost, 4.0.0, 2.6.37-12-generic, i686: installed
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 Subsystem: Toshiba America Info Systems Device [1179:ff00]
   Subsystem: Toshiba America Info Systems Device [1179:ff00]
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Beta i386 (20100901.1)
MachineType: TOSHIBA Satellite A205
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdline: /usr/bin/compiz
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 LC_MESSAGES=en_US.utf8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-1-generic root=UUID=726ac1b7-d11a-4622-b7ee-5c5922b57634 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x11a9752 <_ZN3nux24IOpenGLFrameBufferObject10DeactivateEv+226>: mov 0x44(%esi),%edx
 PC (0x011a9752) ok
 source "0x44(%esi)" (0x00000044) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 nux::IOpenGLFrameBufferObject::Deactivate() () from /usr/lib/libnux-graphics-0.9.so.0
 nux::IOpenGLFrameBufferObject::FormatFrameBufferObject(int, int, nux::BitmapFormat) () from /usr/lib/libnux-graphics-0.9.so.0
 nux::WindowCompositor::FormatRenderTargets(int, int) () from /usr/lib/libnux-0.9.so.0
 nux::WindowThread::ThreadCtor(_XDisplay*, unsigned long, __GLXcontextRec*) () from /usr/lib/libnux-0.9.so.0
 nux::CreateFromForeignWindow(unsigned long, __GLXcontextRec*, void (*)(nux::NThread*, void*), void*) () from /usr/lib/libnux-0.9.so.0
Title: compiz crashed with SIGSEGV in nux::IOpenGLFrameBufferObject::Deactivate()
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XsessionErrors:
 (gnome-settings-daemon:1425): Gdk-CRITICAL **: IA__gdk_window_thaw_toplevel_updates_libgtk_only: assertion `private->update_and_descendants_freeze_count > 0' failed
 (gnome-settings-daemon:1425): Gdk-CRITICAL **: IA__gdk_window_thaw_toplevel_updates_libgtk_only: assertion `private->update_and_descendants_freeze_count > 0' failed
 (nm-applet:1450): Gdk-CRITICAL **: IA__gdk_window_thaw_toplevel_updates_libgtk_only: assertion `private->update_and_descendants_freeze_count > 0' failed
dmi.bios.date: 03/10/2008
dmi.bios.vendor: TOSHIBA
dmi.bios.version: V2.20
dmi.board.name: ISKAA
dmi.board.vendor: TOSHIBA
dmi.board.version: 1.00
dmi.chassis.asset.tag: *
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnTOSHIBA:bvrV2.20:bd03/10/2008:svnTOSHIBA:pnSatelliteA205:pvrPSAE3U-075023:rvnTOSHIBA:rnISKAA:rvr1.00:cvnTOSHIBA:ct10:cvrN/A:
dmi.product.name: Satellite A205
dmi.product.version: PSAE3U-075023
dmi.sys.vendor: TOSHIBA
version.libdrm2: libdrm2 2.4.23-1ubuntu3
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10-1ubuntu1
version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.13.2+git20110124.fadee040-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu4

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #711370, 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.