Xorg crashed with SIGSEGV in XIChangeDeviceProperty()

[Robbie Williamson]

I have some pending updates, so this could be resolved once the archive settles down (right now, apt wants to remove unity and ubuntu-desktop in a dist-upgrade). Only reporting, in case it occurs afterwards.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: xserver-xorg-core 2:1.11.4-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-14.23-generic 3.2.3
Uname: Linux 3.2.0-14-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 1.91-0ubuntu1
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
Date: Mon Feb 13 14:06:26 2012
DistUpgraded: Log time: 2011-12-23 12:31:51.175884
DistroCodename: precise
DistroVariant: ubuntu
ExecutablePath: /usr/bin/Xorg
ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
GraphicsCard:
 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:21db]
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110705.1)
MachineType: LENOVO 4294CTO
ProcCmdline: /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-14-generic root=UUID=f0c9e0e0-e3b1-450a-a592-75d05a586ac3 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x7fac4d7c6b88 <XIChangeDeviceProperty+456>: mov 0x10(%r12),%rax
 PC (0x7fac4d7c6b88) ok
 source "0x10(%r12)" (0x7fac00000010) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: xorg-server
StacktraceTop:
 XIGetDeviceProperty ()
 ?? ()
 ?? ()
 ?? ()
 ?? ()
Title: Xorg crashed with SIGSEGV in XIGetDeviceProperty()
UpgradeStatus: Upgraded to precise on 2011-12-23 (52 days ago)
UserGroups:

dmi.bios.date: 12/01/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 8DET56WW (1.26 )
dmi.board.asset.tag: Not Available
dmi.board.name: 4294CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr8DET56WW(1.26):bd12/01/2011:svnLENOVO:pn4294CTO:pvrThinkPadX220Tablet:rvnLENOVO:rn4294CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4294CTO
dmi.product.version: ThinkPad X220 Tablet
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu8
version.ia32-libs: ia32-libs 20090808ubuntu33
version.libdrm2: libdrm2 2.4.30-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0~rc2-0ubuntu5
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0~rc2-0ubuntu5
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.99.901+git20120126-0ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

[Apport retracing service (apport)]

StacktraceTop:
 XIChangeDeviceProperty (dev=0x7fac4e1b68d0, property=<optimized out>, type=<optimized out>, format=<optimized out>, mode=<optimized out>, len=<optimized out>, value=0x7fffb6a6951f, sendevent=1) at ../../Xi/xiproperty.c:812
 DisableDevice (dev=0x7fac4e1b68d0, sendevent=1 '\001') at ../../dix/devices.c:505
 RemoveDevice (dev=0x7fac4e1b68d0, sendevent=1 '\001') at ../../dix/devices.c:1092
 DeleteInputDeviceRequest (pDev=0x7fac4e1b68d0) at ../../../../hw/xfree86/common/xf86Xinput.c:1012
 CloseDeviceList (listHead=0x7fac4daa52e8) at ../../dix/devices.c:997