Xorg crashed with SIGABRT in OsAbort()

[Phillip Killewald]

Xorg crashes immediately upon start of Xorg, just after logging in through gdm, before GNOME Shell loads, before any window decorations are applied to the crash detection window.

$ lsb_release -rd
Description: Ubuntu Wily Werewolf (development branch)
Release: 15.10

$ apt-cache policy xorg
xorg:
  Installed: 1:7.7+7ubuntu4
  Candidate: 1:7.7+7ubuntu4
  Version table:
 *** 1:7.7+7ubuntu4 0
        500 http://us.archive.ubuntu.com/ubuntu/ wily/main amd64 Packages
        100 /var/lib/dpkg/status

What I expected to happen: Xorg should start without reporting that it has crashed before anything of substance has happened.

What happened instead: Xorg crashed before anything of substance has happened.

ProblemType: Crash
DistroRelease: Ubuntu 15.10
Package: xserver-xorg-core 2:1.17.2-1ubuntu9
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-12-generic x86_64
NonfreeKernelModules: wl nvidia
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 352.41 Fri Aug 21 23:09:52 PDT 2015
 GCC version: gcc version 5.2.1 20151010 (Ubuntu 5.2.1-22ubuntu2)
ApportVersion: 2.19.1-0ubuntu2
Architecture: amd64
BootLog:
 Scanning for Btrfs filesystems
 fsck from util-linux 2.26.2
CrashCounter: 1
CurrentDesktop: GNOME
Date: Mon Oct 12 21:21:08 2015
DistUpgraded: 2015-10-01 00:14:03,347 DEBUG failed to SystemUnLock() (E:Not locked)
DistroCodename: wily
DistroVariant: ubuntu
ExecutablePath: /usr/bin/Xorg
GraphicsCard:
 NVIDIA Corporation GK104 [GeForce GTX 760] [10de:1187] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. Device [1043:847a]
InstallationDate: Installed on 2015-05-25 (146 days ago)
InstallationMedia: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: ASUS All Series
ProcCmdline: /usr/bin/X vt7 -displayfd 3 -auth /run/user/116/gdm/Xauthority -nolisten tcp -background none -noreset -keeptty -verbose 3
ProcEnviron:
 SHELL=/bin/false
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.2.0-16-generic.efi.signed root=/dev/mapper/hostname--vg-root ro rootflags=subvol=@ noprompt persistent quiet splash vt.handoff=7
Signal: 6
SourcePackage: xorg-server
StacktraceTop:
 OsAbort ()
 FatalError ()
 ?? ()
 xf86CloseConsole ()
 ddxGiveUp ()
Title: Xorg crashed with SIGABRT in OsAbort()
UpgradeStatus: Upgraded to wily on 2015-10-01 (17 days ago)
UserGroups:

dmi.bios.date: 06/25/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2801
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: MAXIMUS VII IMPACT
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2801:bd06/25/2015:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnMAXIMUSVIIIMPACT:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: All Series
dmi.product.version: System Version
dmi.sys.vendor: ASUS
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.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
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: Sun Oct 18 18:42:57 2015
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.17.2-1ubuntu9

[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 #1237904, 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.