Xorg crashed with SIGSEGV in dixDestroyPixmap()

[Tiago Carrondo]

no clue

ProblemType: Crash
DistroRelease: Ubuntu 14.10
Package: xserver-xorg-core 2:1.16.0-1ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.14.7-0ubuntu2
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
Date: Wed Sep 24 17:15:38 2014
DistUpgraded: 2014-09-18 11:52:29,671 DEBUG enabling apt cron job
DistroCodename: utopic
DistroVariant: ubuntu
ExecutablePath: /usr/bin/Xorg
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: CLEVO/KAPOK Computer Device [1558:6500]
   Subsystem: CLEVO/KAPOK Computer Device [1558:6500]
InstallationDate: Installed on 2014-03-24 (184 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140323)
MachineType: Notebook W650EH
ProcCmdline: /usr/bin/X -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-24-generic root=/dev/mapper/ubuntu--vg-root ro locale=pt_PT quiet splash acpi_backlight=vendor vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x7fb2a98af64e <IgnoreClient+14>: mov (%rax),%ebx
 PC (0x7fb2a98af64e) ok
 source "(%rax)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%ebx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: xorg-server
StacktraceTop:
 dixDestroyPixmap ()
 ?? ()
 FreeClientResources ()
 CloseDownClient ()
 ?? ()
Title: Xorg crashed with SIGSEGV in dixDestroyPixmap()
UpgradeStatus: Upgraded to utopic on 2014-09-18 (6 days ago)
UserGroups:

dmi.bios.date: 04/08/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4.6.5
dmi.board.asset.tag: Tag 12345
dmi.board.name: W650EH
dmi.board.vendor: Notebook
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd04/08/2013:svnNotebook:pnW650EH:pvrNotApplicable:rvnNotebook:rnW650EH:rvrNotApplicable:cvnNoEnclosure:ct9:cvrN/A:
dmi.product.name: W650EH
dmi.product.version: Not Applicable
dmi.sys.vendor: Notebook
version.compiz: compiz 1:0.9.12+14.10.20140812-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.56-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.2.6-1ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.2.6-1ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
xserver.bootTime: Wed Sep 24 18:04:35 2014
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 5563
 vendor CMN
xserver.version: 2:1.16.0-1ubuntu1

[Apport retracing service (apport)]

StacktraceTop:
 dixDestroyPixmap (value=0x7fb2aab4f350, pid=31457300) at ../../dix/dispatch.c:1341
 doFreeResource (res=0x7fb2aaca5c70, skip=0) at ../../dix/resource.c:873
 FreeClientResources (client=0x7fb2aab4f350, client@entry=0x7fb2aab533c0) at ../../dix/resource.c:1139
 CloseDownClient (client=0x7fb2aab533c0) at ../../dix/dispatch.c:3384
 KillAllClients () at ../../dix/dispatch.c:3411

[Paul White (paulw2u)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. We are sorry that we do not always have the capacity to review all reported bugs in a timely manner.

Ubuntu 14.10 (utopic) reached end-of-life on July 23, 2015.

I'm setting the status of this bug to 'Incomplete' as it's not seen any activity for some time. If this issue is still relevant when using a currently maintained release of Ubuntu then please let us know which one(s) otherwise this bug report can be left to expire in approximately 60 days time.

[Launchpad Janitor (janitor)]

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