Xorg crashed with SIGSEGV in Dispatch()

[Matej Kenda]

I am running xubuntu 9.10 (Alpha 3 + updates) in VirtualBox 3.0.4. The crash was reported after logging in.

ProblemType: Crash
Architecture: i386
CrashCounter: 1
CurrentDmesg: [ 37.560042] eth0: no IPv6 routers present
Date: Tue Aug 11 07:32:30 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/Xorg
Lsusb:
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: innotek GmbH VirtualBox
Package: xserver-xorg-core 2:1.6.3-1ubuntu1
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: 64
  Region 0: Memory at e0000000 (32-bit, prefetchable) [size=64M]
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-5-generic root=UUID=e3a253bc-56da-429c-9986-03947ce4e4fa ro quiet splash
ProcCmdline: /usr/bin/X :0 -br -verbose -auth /var/run/gdm/auth-for-gdm-tqQPkt/database -nolisten tcp vt7
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
ProcVersionSignature: Ubuntu 2.6.31-5.24-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu5
 libgl1-mesa-glx 7.5-1ubuntu1
 libdrm2 2.4.12-1ubuntu1
 xserver-xorg-video-intel 2:2.8.0-0ubuntu2
 xserver-xorg-video-ati 1:6.12.99+git20090629.f39cafc5-0ubuntu5
SegvAnalysis:
 Segfault happened at: 0x37db90: add %cl,-0x72f7dbbc(%ecx)
 PC (0x0037db90) ok
 source "%cl" ok
 destination "-0x72f7dbbc(%ecx)" (0x-72f7dbbc) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: xorg-server
Stacktrace:
 #0 0x0037db90 in ?? () from /usr/lib/xorg/modules/input//evdev_drv.so
 #1 0x0808cd60 in Dispatch ()
 #2 0x08072465 in main ()
StacktraceTop:
 ?? () from /usr/lib/xorg/modules/input//evdev_drv.so
 Dispatch ()
 main ()
ThreadStacktrace:
 .
 Thread 1 (Thread 2310):
 #0 0x0037db90 in ?? () from /usr/lib/xorg/modules/input//evdev_drv.so
 #1 0x0808cd60 in Dispatch ()
 #2 0x08072465 in main ()
Title: Xorg crashed with SIGSEGV in Dispatch()
Uname: Linux 2.6.31-5-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
glxinfo: Error: [Errno 2] No such file or directory
system:
 distro: Ubuntu
 architecture: i686kernel: 2.6.31-5-generic

[Apport retracing service (apport)]

StacktraceTop:EvdevPreInit (drv=0x9d6a008, dev=0x0, flags=0)
Dispatch () at ../../dix/dispatch.c:367
main (argc=9, argv=0xbfd2dc64, envp=0xbfd2dc8c)

[Fgrl (fgromerolamas)]

May be interesting to point out that, in my case, the crash only started happening after installing the virtualbox guest additions.