Xorg crashed with SIGABRT in OsAbort()

[André Goddard Rosa]

During boot xorg crashes and need to reboot more than once to start.

ProblemType: Crash
DistroRelease: Ubuntu 15.10
Package: xserver-xorg-core 2:1.17.2-1ubuntu6
ProcVersionSignature: Ubuntu 4.2.0-10.11-generic 4.2.0
Uname: Linux 4.2.0-10-generic i686
.tmp.unity.support.test.1:

ApportVersion: 2.18.1-0ubuntu1
Architecture: i386
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
Date: Thu Sep 17 20:42:03 2015
DistUpgraded: 2015-08-31 07:49:32,758 DEBUG running apport_crash()
DistroCodename: wily
DistroVariant: ubuntu
ExecutablePath: /usr/bin/Xorg
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
 Silicon Integrated Systems [SiS] 771/671 PCIE VGA Display Adapter [1039:6351] (rev 10) (prog-if 00 [VGA controller])
   Subsystem: Elitegroup Computer Systems Device [1019:5050]
InstallationDate: Installed on 2012-02-07 (1319 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
ProcCmdline: /usr/bin/X -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-10-generic root=UUID=adf05e5d-849a-432f-933d-eb72eb04192e ro quiet splash init=/lib/systemd/systemd vt.handoff=7
Renderer: Software
Signal: 6
SourcePackage: xorg-server
StacktraceTop:
 OsAbort ()
 ?? ()
 FatalError ()
 ?? ()
 ?? ()
Title: Xorg crashed with SIGABRT in OsAbort()
UpgradeStatus: Upgraded to wily on 2015-08-31 (17 days ago)
UserGroups:

dmi.bios.date: 04/03/2008
dmi.bios.vendor: OEM
dmi.bios.version: 1.12
dmi.board.asset.tag: Tag 12345
dmi.board.name: N/A
dmi.board.vendor: OEM
dmi.board.version: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: OEM
dmi.modalias: dmi:bvnOEM:bvr1.12:bd04/03/2008:svnOEM:pn:pvr:rvnOEM:rnN/A:rvrN/A:cvnOEM:ct10:cvr:
dmi.sys.vendor: OEM
version.compiz: compiz 1:0.9.12.2+15.10.20150908-0ubuntu1
version.libdrm2: libdrm2 2.4.64-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.6.3-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.6.3-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu6
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+git20150808-0ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3
xserver.bootTime: Thu Sep 17 20:44:26 2015
xserver.configfile: /etc/X11/xorg.conf
xserver.errors: AIGLX: reverting to software rendering
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.17.2-1ubuntu6

[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 #1339832, 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.