compiz crashed with SIGSEGV in Glib::Source::prepare_vfunc()

[Christopher Kyle Horton]

Got this when duplicating bug 933760 on my desktop while running Unity from a terminal in a GNOME Shell session with unity --replace, and pressing Ctrl+C to kill it.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: compiz-core 1:0.9.7.0~bzr2995-0ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-16.25-generic 3.2.6
Uname: Linux 3.2.0-16-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 1.91-0ubuntu1
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,imgpng,move,vpswitch,mousepoll,resize,snap,wall,grid,place,gnomecompat,regex,session,animation,expo,workarounds,fade,ezoom,scale,unityshell]
CompositorRunning: compiz
CrashCounter: 1
Date: Thu Feb 16 17:48:13 2012
DistUpgraded: Log time: 2011-12-07 01:54:25.886125
DistroCodename: precise
DistroVariant: ubuntu
DuplicateOf: https://bugs.launchpad.net/bugs/932125
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 NVIDIA Corporation C61 [GeForce 6150SE nForce 430] [10de:03d0] (rev a2) (prog-if 00 [VGA controller])
   Subsystem: Giga-byte Technology Device [1458:d000]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20111129.1)
MachineType: Gigabyte Technology Co., Ltd. M61PME-S2P
ProcCmdline: compiz --replace
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-16-generic root=UUID=2d55fd3e-d932-47b9-abd6-a1fde1ec0453 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x7ff09949d9cf <_ZN4Glib6Source13prepare_vfuncEP8_GSourcePi+15>: mov (%rdi),%rax
 PC (0x7ff09949d9cf) ok
 source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 Glib::Source::prepare_vfunc(_GSource*, int*) () from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
 g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_main_context_pending () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /usr/lib/compizconfig/backends/libgconf.so
Title: compiz crashed with SIGSEGV in Glib::Source::prepare_vfunc()
UpgradeStatus: Upgraded to precise on 2011-12-13 (65 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 11/03/2009
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F6
dmi.board.name: M61PME-S2P
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF6:bd11/03/2009:svnGigabyteTechnologyCo.,Ltd.:pnM61PME-S2P:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnM61PME-S2P:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: M61PME-S2P
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
version.compiz: compiz 1:0.9.7.0~bzr2995-0ubuntu3
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.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 #932125, 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.