compiz crashed with SIGSEGV in sigc::signal_base::impl()

[Derek]

Binary package hint: compiz

Doing anything in CCSM (enabling or disabling), causes compiz to crash. Tried a number of plugins.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: compiz-core 1:0.9.2.1+glibmainloop4-0ubuntu5
ProcVersionSignature: Ubuntu 2.6.37-12.26-generic 2.6.37
Uname: Linux 2.6.37-12-generic x86_64
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/allscreens/options/active_plugins'
CompositorRunning: compiz
DRM.card0.DP.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.DP.2:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.HDMI.A.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.HDMI.A.2:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1280x800
 edid-base64:
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
Date: Thu Jan 27 19:19:59 2011
DistUpgraded: Yes, recently upgraded Log time: 2011-01-27 16:34:28.528021
DistroCodename: natty
DistroVariant: ubuntu
ExecutablePath: /usr/bin/compiz
GdmLog: Not present
GraphicsCard: Subsystem: Sony Corporation Device [104d:906c]
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MachineType: Sony Corporation VPCB11KGX
ProcCmdline: 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-2.6.37-12-generic root=UUID=954d6713-921d-45aa-91f5-a0d5192e2eef ro quiet splash vt.handoff=7
Renderer: Hardware acceleration
SegvAnalysis:
 Segfault happened at: 0x7f09ead062f6 <_ZNK4sigc11signal_base4implEv+22>: mov 0x8(%rdi),%rbx
 PC (0x7f09ead062f6) ok
 source "0x8(%rdi)" (0x000000e8) not located in a known VMA region (needed readable region)!
 destination "%rbx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 sigc::signal_base::impl() const () from /usr/lib/libsigc-2.0.so.0
 sigc::signal_base::connect(sigc::slot_base const&) () from /usr/lib/libsigc-2.0.so.0
 UnityScreen::UnityScreen(CompScreen*) () from /usr/lib/compiz/libunityshell.so
 CompPlugin::VTableForScreenAndWindow<UnityScreen, UnityWindow>::initScreen(CompScreen*) () from /usr/lib/compiz/libunityshell.so
 CompManager::initPlugin(CompPlugin*) ()
Title: compiz crashed with SIGSEGV in sigc::signal_base::impl()
UnitySupportTest:

UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 01/07/2009
dmi.bios.vendor: INSYDE
dmi.bios.version: R0250Q4
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnINSYDE:bvrR0250Q4:bd01/07/2009:svnSonyCorporation:pnVPCB11KGX:pvrR5911351:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VPCB11KGX
dmi.product.version: R5911351
dmi.sys.vendor: Sony Corporation
version.libdrm2: libdrm2 2.4.23-1ubuntu3
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10-1ubuntu1
version.xserver-xorg: xserver-xorg 1:7.5+6ubuntu8
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.13.2-1ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-1ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu1

[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 #700600, 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.

[Derek (bugs-m8y)]

Other report is private, shame. I'm mildly curious as to progress, workarounds, fixes, test builds etc.

Oh well. No big deal.