Xorg unexpectedly crahed with Segmentation fault

[Viktor Pal]

Xorg unexpectedly crahed with Segmentation fault during normal daily work using gnome-shell.
Logs should contain all the necessary details.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: xorg 1:7.7+7ubuntu4
ProcVersionSignature: Ubuntu 4.2.0-18.22-generic 4.2.3
Uname: Linux 4.2.0-18-generic x86_64
ApportVersion: 2.19.1-0ubuntu4
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: GNOME
Date: Mon Nov 16 17:34:45 2015
DistUpgraded: 2015-11-06 17:27:19,974 DEBUG enabling apt cron job
DistroCodename: wily
DistroVariant: ubuntu
DkmsStatus:
 virtualbox, 5.0.4, 3.19.0-32-generic, x86_64: installed
 virtualbox, 5.0.4, 4.2.0-17-generic, x86_64: installed
 virtualbox, 5.0.4, 4.2.0-18-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06) (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Device [103c:1998]
InstallationDate: Installed on 2015-06-26 (143 days ago)
InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Release amd64 (20150422)
MachineType: Hewlett-Packard HP EliteDesk 800 G1 SFF
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-18-generic root=/dev/mapper/system_vg-root_lv ro noprompt persistent quiet splash vt.handoff=7
SourcePackage: xorg
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: Upgraded to wily on 2015-11-06 (10 days ago)
dmi.bios.date: 07/13/2015
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: L01 v02.65
dmi.board.asset.tag: CZC4033CYV
dmi.board.name: 1998
dmi.board.vendor: Hewlett-Packard
dmi.chassis.asset.tag: CZC4033CYV
dmi.chassis.type: 4
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvrL01v02.65:bd07/13/2015:svnHewlett-Packard:pnHPEliteDesk800G1SFF:pvr:rvnHewlett-Packard:rn1998:rvr:cvnHewlett-Packard:ct4:cvr:
dmi.product.name: HP EliteDesk 800 G1 SFF
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.64-1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4
version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3
xserver.bootTime: Mon Nov 16 16:32:25 2015
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 12446
 vendor HWP
xserver.version: 2:1.17.2-1ubuntu9

[penalvch (penalvch)]

Viktor Pal, thank you for reporting this and helping make Ubuntu better.

Could you please advise if there are crash files in /var/crash?

[Viktor Pal (deere)]

Hi. Forgot to mention in the original report, but there was no crash file for xorg in /var/crash after the crash.

[penalvch (penalvch)]

Viktor Pal, to see if this already resolved in Ubuntu, could you please test http://cdimage.ubuntu.com/daily-live/current/ and advise to the results?

[Viktor Pal (deere)]

Christopher, I'm unfortunately not able to test the unstable image as this is my work computer and I need to have a stable release running on it.
The other problem is that I can't reproduce the bug as it just happened, so installing the daily image and running it for whatever time without this happening would also not mean that this bug does not exist in that version.

[Launchpad Janitor (janitor)]

[Expired for xorg (Ubuntu) because there has been no activity for 60 days.]