compiz crashed with SIGSEGV in _XFreeEventCookies()

[OZ]

При закрытии менеджера обновлений. I was closing update manager.
I was closing Firefox.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: compiz-core 1:0.9.5.94+bzr2803-0ubuntu5
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 1.23-0ubuntu1
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,mousepoll,snap,move,imgpng,place,resize,regex,vpswitch,session,wall,gnomecompat,grid,unitymtgrabhandles,animation,fade,scale,workarounds,expo,ezoom,unityshell]
CompositorRunning: compiz
CrashCounter: 1
Date: Sun Sep 18 13:52:45 2011
DistUpgraded: Fresh install
DistroCodename: oneiric
DistroVariant: ubuntu
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 ATI Technologies Inc Mobility Radeon HD 3400 Series [1002:95c4] (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Device [103c:3055]
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64+mac (20110901)
MachineType: Hewlett-Packard HP Pavilion dv2 Notebook PC
ProcCmdline: compiz
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-11-generic root=UUID=5afd21ed-236e-4bd1-b3c5-424056edf800 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x7f64462874f3 <_XFreeEventCookies+19>: mov 0x40(%rax),%rbp
 PC (0x7f64462874f3) ok
 source "0x40(%rax)" (0x00001290) not located in a known VMA region (needed readable region)!
 destination "%rbp" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 _XFreeEventCookies () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 XNextEvent () from /usr/lib/x86_64-linux-gnu/libX11.so.6
 PrivateScreen::processEvents() ()
 CompEventSource::callback() ()
 Glib::Source::dispatch_vfunc(_GSource*, int (*)(void*), void*) () from /usr/lib/libglibmm-2.4.so.1
Title: compiz crashed with SIGSEGV in _XFreeEventCookies()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 10/07/2009
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.27
dmi.board.name: 3055
dmi.board.vendor: Flextronics
dmi.board.version: 17.32
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Flextronics
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.27:bd10/07/2009:svnHewlett-Packard:pnHPPaviliondv2NotebookPC:pvrF.27:rvnFlextronics:rn3055:rvr17.32:cvnFlextronics:ct10:cvrN/A:
dmi.product.name: HP Pavilion dv2 Notebook PC
dmi.product.version: F.27
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.5.94+bzr2803-0ubuntu5
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.26-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

[Launchpad Janitor (janitor)]

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

[Yura Ben-Sheer (yura-bensheer)]

same issue but with chrome
my reproducible flow -- minimize chrome -> right-click on the docked chrome icon on the unity dock -> choose exit -> crash
exit when not minimized does not result in crush.

[alpxp (pavel-aleynikov)]

Exectely the same as with Yura Ben-Sheer

[mario catena (mcblackmar02)]

present in DVD version amd64