Xorg crashed with SIGABRT in __libc_message()

[Bob Bib]

Crashed while playing with LightDM login screen and logging into the already logged in user.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: xserver-xorg-core 2:1.11.4-0ubuntu10.2
ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
Uname: Linux 3.2.0-24-generic x86_64
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
Date: Sat Jun 2 21:02:49 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
DkmsStatus: vboxhost, 4.1.16: added
ExecutablePath: /usr/bin/Xorg
ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
GraphicsCard:
 Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
   Subsystem: Acer Incorporated [ALI] Device [1025:0229]
   Subsystem: Acer Incorporated [ALI] Device [1025:0229]
MachineType: Acer Aspire 3810T
ProcCmdline: /usr/bin/X :1 -auth /var/run/lightdm/root/:1 -nolisten tcp vt8 -novtswitch
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=dc688c32-80f7-4172-bd1d-4234bb54973e ro i8042.reset=1
Signal: 6
SourcePackage: xorg-server
StacktraceTop:
 raise () from /lib/x86_64-linux-gnu/libc.so.6
 abort () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /lib/x86_64-linux-gnu/libc.so.6
 ?? () from /usr/lib/xorg/modules/input/synaptics_drv.so
Title: Xorg crashed with SIGABRT in raise()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

dmi.bios.date: 08/10/2010
dmi.bios.vendor: Acer
dmi.bios.version: V1.28
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Aspire 3810T
dmi.board.vendor: Acer
dmi.board.version: PSMBOU-1234567
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: None
dmi.modalias: dmi:bvnAcer:bvrV1.28:bd08/10/2010:svnAcer:pnAspire3810T:pvrV1.28:rvnAcer:rnAspire3810T:rvrPSMBOU-1234567:cvnAcer:ct10:cvrNone:
dmi.product.name: Aspire 3810T
dmi.product.version: V1.28
dmi.sys.vendor: Acer
version.compiz: compiz N/A
version.ia32-libs: ia32-libs 20090808ubuntu36
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
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 2:2.17.0-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

[Apport retracing service (apport)]

StacktraceTop:
 __libc_message (do_abort=2, fmt=0x7fd3c8b180d0 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:201
 malloc_printerr (action=3, str=0x7fd3c8b18230 "double free or corruption (out)", ptr=<optimized out>) at malloc.c:5007
 ?? () from /tmp/tmpHnF61B/usr/lib/xorg/modules/input/synaptics_drv.so
 DeleteInputDeviceRequest (pDev=0x7fd3ce21a2e0) at ../../../../hw/xfree86/common/xf86Xinput.c:1012
 CloseDeviceList (listHead=0x7fd3cac08310) at ../../dix/devices.c:999

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.