Xorg crashed with SIGSEGV in DamageUnregister()

[ddavid123]

I am running Ubuntu 9.10 Pre Alpha in Virtual Box. The error message said Xorg crashed, but Gnome was still running.

ProblemType: Crash
Architecture: i386
Date: Mon Jul 27 23:35:50 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/Xorg
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: innotek GmbH VirtualBox
Package: xserver-xorg-core 2:1.6.1.901-2ubuntu2
PciDisplay:
 00:02.0 VGA compatible controller [0300]: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter [80ee:beef]
  Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
  Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  Latency: 0
  Region 0: Memory at e0000000 (32-bit, prefetchable) [size=128M]
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-4-generic root=UUID=9ad6b864-9ebf-41f0-8e47-cdf85698906a ro quiet splash
ProcCmdline: /usr/bin/X :0 -br -verbose -auth /var/run/gdm/auth-for-gdm-m3VrFr/database -nolisten tcp vt7
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
ProcVersionSignature: Ubuntu 2.6.31-4.23-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu5
 libgl1-mesa-glx 7.5-1ubuntu1
 libdrm2 2.4.12-1ubuntu1
 xserver-xorg-video-intel 2:2.8.0-0ubuntu1
 xserver-xorg-video-ati 1:6.12.99+git20090629.f39cafc5-0ubuntu1
SegvAnalysis:
 Segfault happened at: 0x817df6a <DamageUnregister+58>: mov (%edx),%edx
 PC (0x0817df6a) ok
 source "(%edx)" (0x00000018) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: xorg-server
StacktraceTop:
 DamageUnregister ()
 shadowRemove () from /usr/lib/xorg/modules//libshadow.so
 ?? () from /usr/lib/xorg/modules//libshadow.so
 ?? ()
 ?? ()
Title: Xorg crashed with SIGSEGV in DamageUnregister()
Uname: Linux 2.6.31-4-generic i686
UserGroups:

dmi.bios.date: 12/01/2006
dmi.bios.vendor: innotek GmbH
dmi.bios.version: VirtualBox
dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:
dmi.product.name: VirtualBox
dmi.product.version: 1.2
dmi.sys.vendor: innotek GmbH
fglrx: Not loaded
system:
 distro: Ubuntu
 architecture: i686kernel: 2.6.31-4-generic