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[Bug 1658539] [NEW] unity crashes due to "compiz[15682]: segfault at 1148 ip 00007f3612d5a926 sp 00007ffffad8b6d0 error 4 in libunityshell.so[7f3612b49000+5df000]"


Public bug reported:

While opening a VirtualBox 5.1.14 Debian VM, unity crashed (screen got
reduced to background image for some seconds and all programs were
closed) while

    [Jan22 23:49] device enx00e07cc862a1 left promiscuous mode
    [  +1,114218] vboxnetflt: 0 out of 3111 packets were not sent (directed to host)
    [  +1,952251] compiz[15682]: segfault at 1148 ip 00007f3612d5a926 sp 00007ffffad8b6d0 error 4 in libunityshell.so[7f3612b49000+5df000]
    [  +9,923147] r8169 0000:02:00.0: invalid short VPD tag 00 at offset 1

was logged in `dmesg`.

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: compiz 1:
ProcVersionSignature: Ubuntu 4.8.0-34.36-generic 4.8.11
Uname: Linux 4.8.0-34-generic x86_64
NonfreeKernelModules: openafs zfs zunicode icp zcommon znvpair zavl
ApportVersion: 2.20.3-0ubuntu8.2
Architecture: amd64
CompizPlugins: »/apps/compiz-1/general/screen0/options/active_plugins« wurde kein Wert zugewiesen
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Sun Jan 22 23:50:52 2017
DistUpgraded: 2016-10-17 13:28:03,057 ERROR got error from PostInstallScript ./xorg_fix_proprietary.py (g-exec-error-quark: Kindprozess »./xorg_fix_proprietary.py« konnte nicht ausgeführt werden (No such file or directory) (8))
DistroCodename: yakkety
DistroVariant: ubuntu
 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:3904]
 b'org.compiz.core' b'outputs' b"['1366x768+1680+0', '1680x1050+0+0']"
 b'org.compiz.core' b'active-plugins' b"['core', 'composite', 'opengl', 'regex', 'resize', 'snap', 'vpswitch', 'workarounds', 'commands', 'compiztoolbox', 'imgpng', 'mousepoll', 'move', 'scale', 'expo', 'unityshell']"
InstallationDate: Installed on 2015-12-12 (407 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
MachineType: LENOVO 20221
PackageArchitecture: all
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.8.0-34-generic root=UUID=791b47e7-915d-4d5a-bce0-d7e9b660a2ab ro rootflags=subvol=ubuntu-main-root
SourcePackage: compiz
UpgradeStatus: Upgraded to yakkety on 2016-10-17 (97 days ago)
dmi.bios.date: 07/12/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: 71CN51WW(V1.21)
dmi.board.asset.tag: No Asset Tag
dmi.board.name: INVALID
dmi.board.vendor: LENOVO
dmi.board.version: 31900003WIN8 STD MLT
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo IdeaPad Z500 Touch
dmi.modalias: dmi:bvnLENOVO:bvr71CN51WW(V1.21):bd07/12/2013:svnLENOVO:pn20221:pvrLenovoIdeaPadZ500Touch:rvnLENOVO:rnINVALID:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoIdeaPadZ500Touch:
dmi.product.name: 20221
dmi.product.version: Lenovo IdeaPad Z500 Touch
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.70-1
version.libgl1-mesa-dri: libgl1-mesa-dri 12.0.3-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 12.0.3-1ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-1ubuntu6.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.2-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.1-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160706-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-2
xserver.bootTime: Sun Jan 22 22:23:00 2017
xserver.configfile: default
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.18.4-1ubuntu6.1
xserver.video_driver: modeset

** Affects: compiz (Ubuntu)
     Importance: Undecided
         Status: New

** Tags: amd64 apport-bug compiz-0.9 possible-manual-nvidia-install ubuntu yakkety

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  unity crashes due to "compiz[15682]: segfault at 1148 ip
  00007f3612d5a926 sp 00007ffffad8b6d0 error 4 in

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