compiz crashed with SIGSEGV in PluginClassHandler<unity::UnityWindow, CompWindow, 0>::get()

[James Page]

I've hit this a few times when switching workspaces and shuffling windows in the last week or so.

ProblemType: Crash
DistroRelease: Ubuntu 16.10
Package: compiz-core 1:0.9.12.2+16.04.20160415-0ubuntu2
ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8
Uname: Linux 4.4.0-22-generic x86_64
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
.tmp.unity_support_test.0:

ApportVersion: 2.20.1-0ubuntu3
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
Date: Mon May 16 16:57:34 2016
DistUpgraded: Fresh install
DistroCodename: yakkety
DistroVariant: ubuntu
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Lenovo 3rd Gen Core processor Graphics Controller [17aa:21fa]
InstallationDate: Installed on 2016-01-17 (119 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160117)
MachineType: LENOVO 2324CTO
ProcCmdline: compiz
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic.efi.signed root=UUID=5541072f-a0dc-44ab-97db-58b50b942015 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x7ff0dc80c386 <_ZN18PluginClassHandlerIN5unity11UnityWindowE10CompWindowLi0EE3getEPS2_+470>: mov (%rax,%rdx,8),%rax
 PC (0x7ff0dc80c386) ok
 source "(%rax,%rdx,8)" (0x00000080) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 PluginClassHandler<unity::UnityWindow, CompWindow, 0>::get(CompWindow*) () from /usr/lib/x86_64-linux-gnu/compiz/libunityshell.so
 unity::UnityScreen::OnTerminateSpread() () from /usr/lib/x86_64-linux-gnu/compiz/libunityshell.so
 unity::PluginAdapter::InitiateScale(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int) () from /usr/lib/x86_64-linux-gnu/compiz/libunityshell.so
 unity::PluginAdapter::ScaleWindowGroup(std::vector<unsigned long, std::allocator<unsigned long> > const&, int, bool) () from /usr/lib/x86_64-linux-gnu/compiz/libunityshell.so
 unity::launcher::WindowedLauncherIcon::Spread(bool, int, bool) () from /usr/lib/x86_64-linux-gnu/compiz/libunityshell.so
Title: compiz crashed with SIGSEGV in PluginClassHandler<unity::UnityWindow, CompWindow, 0>::get()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip libvirtd lpadmin lxd plugdev sambashare sbuild sudo
dmi.bios.date: 01/14/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: G2ET91WW (2.51 )
dmi.board.asset.tag: Not Available
dmi.board.name: 2324CTO
dmi.board.vendor: LENOVO
dmi.board.version: Win8 Pro DPK TPG
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrG2ET91WW(2.51):bd01/14/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2324CTO
dmi.product.version: ThinkPad X230
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.12.2+16.04.20160415-0ubuntu2
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.68-1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.1-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.1-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2
xserver.bootTime: Mon May 9 11:05:54 2016
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 728
 vendor LGD
xserver.version: 2:1.18.3-1ubuntu4

[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 #1565666, 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.