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

[Evan Huus]

Everything had slowed down (opening dash, HUD, etc.) to be quite laggy (it was quite snappy when I'd just turned it on) so I ran compiz --restart from alt-f2. The restart took a while, and this crash report popped up.

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
.tmp.unity.support.test.0:

ApportVersion: 1.91-0ubuntu1
Architecture: amd64
CheckboxSubmission: e049aa43e015d38fc2b288a8a60db142
CheckboxSystem: 2a6f54df59af338184485e85cbcf0d32
CompizPlugins: [core,bailer,detection,composite,opengl,decor,imgpng,regex,snap,place,compiztoolbox,move,mousepoll,resize,gnomecompat,grid,vpswitch,animation,session,wall,expo,ezoom,fade,workarounds,scale,unityshell]
CompositorRunning: compiz
CrashCounter: 1
Date: Sat Feb 18 15:38:52 2012
DistUpgraded: Log time: 2011-11-25 17:40:02.587103
DistroCodename: precise
DistroVariant: ubuntu
DkmsStatus: virtualbox, 4.1.8, 3.2.0-16-generic, x86_64: installed
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 Advanced Micro Devices [AMD] nee ATI RV630 [Radeon HD 2600XT] [1002:9588] (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:2542]
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110921.2)
MachineType: Dell Inc. Inspiron 530
ProcCmdline: compiz
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-16-generic root=UUID=60269649-642d-4672-83bb-7bfadaae6e31 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x7f9ee63709cf <_ZN4Glib6Source13prepare_vfuncEP8_GSourcePi+15>: mov (%rdi),%rax
 PC (0x7f9ee63709cf) 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 2012-01-14 (35 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare wireshark
dmi.bios.date: 06/20/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.0.15
dmi.board.name: 0FM586
dmi.board.vendor: Dell Inc.
dmi.board.version: ���
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: OEM
dmi.modalias: dmi:bvnDellInc.:bvr1.0.15:bd06/20/2008:svnDellInc.:pnInspiron530:pvr:rvnDellInc.:rn0FM586:rvr:cvnDellInc.:ct3:cvrOEM:
dmi.product.name: Inspiron 530
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.7.0~bzr2995-0ubuntu4
version.ia32-libs: ia32-libs 20090808ubuntu33
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.