compiz crashed with SIGSEGV in g_closure_invoke()

[Steve Riley]

The WM restarts after I click something on the launcher. then I got this popup so i want to report it.

ProblemType: Crash
DistroRelease: Ubuntu 14.10
Package: compiz-core 1:0.9.12+14.10.20140812-0ubuntu1
ProcVersionSignature: Ubuntu 3.16.0-16.22-generic 3.16.2
Uname: Linux 3.16.0-16-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.14.7-0ubuntu2
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CrashCounter: 1
CurrentDesktop: Unity
CurrentDmesg:
 [ 45.023222] systemd-logind[850]: Failed to start user service: Unknown unit: [e-mail]
 [ 45.031238] systemd-logind[850]: New session c1 of user steve.
 [ 45.031281] systemd-logind[850]: Linked /tmp/.X11-unix/X0 to /run/user/1000/X11-display.
 [ 65.405136] show_signal_msg: 15 callbacks suppressed
 [ 65.405145] compiz[1852]: segfault at 0 ip (null) sp 00007fffc2b9e758 error 14 in compiz[400000+3000]
Date: Sat Sep 20 00:38:20 2014
Disassembly: => 0x0: Cannot access memory at address 0x0
DistUpgraded: 2014-09-19 17:19:55,295 DEBUG enabling apt cron job
DistroCodename: utopic
DistroVariant: ubuntu
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] RS690M [Radeon Xpress 1200/1250/1270] [1002:791f] (prog-if 00 [VGA controller])
   Subsystem: Toshiba America Info Systems Device [1179:ff00]
InstallationDate: Installed on 2014-07-13 (68 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Daily amd64 (20140407)
MachineType: TOSHIBA Satellite A215
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdline: compiz
ProcEnviron:
 PATH=(custom, no user)
 LANGUAGE=en_US
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-16-generic root=UUID=dba6801f-8acb-48e1-bd5c-351ece6f729f ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x0: Cannot access memory at address 0x0
 PC (0x00000000) not located in a known VMA region (needed executable region)!
SegvReason: executing NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 ?? ()
 g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: compiz crashed with SIGSEGV in g_closure_invoke()
UpgradeStatus: Upgraded to utopic on 2014-09-19 (0 days ago)
UserGroups: adm cdrom dip disk lpadmin plugdev sambashare sudo
dmi.bios.date: 02/25/2008
dmi.bios.vendor: TOSHIBA
dmi.bios.version: V1.90
dmi.board.name: IALAA
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:bvrV1.90:bd02/25/2008:svnTOSHIBA:pnSatelliteA215:pvrPSAEGU-03J01K:rvnTOSHIBA:rnIALAA:rvr1.00:cvnTOSHIBA:ct10:cvrN/A:
dmi.product.name: Satellite A215
dmi.product.version: PSAEGU-03J01K
dmi.sys.vendor: TOSHIBA
version.compiz: compiz 1:0.9.12+14.10.20140812-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.56-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.2.6-1ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.2.6-1ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
xserver.bootTime: Sat Sep 20 00:37:58 2014
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.16.0-1ubuntu1
xserver.video_driver: radeon

[Apport retracing service (apport)]

StacktraceTop:
 ?? ()
 g_closure_invoke (closure=0x2cb9fb0, return_value=0x0, n_param_values=2, param_values=0x7fffc2b9e920, invocation_hint=0x7fffc2b9e8c0) at /build/buildd/glib2.0-2.41.5/./gobject/gclosure.c:768
 signal_emit_unlocked_R (node=node@entry=0x1f98b90, detail=detail@entry=1298, instance=instance@entry=0x2409350, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fffc2b9e920) at /build/buildd/glib2.0-2.41.5/./gobject/gsignal.c:3553
 g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fffc2b9eab0) at /build/buildd/glib2.0-2.41.5/./gobject/gsignal.c:3309
 g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.41.5/./gobject/gsignal.c:3365

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.