Xorg crashed with SIGSEGV in strtol()

[Faith Nahn]

It happens all the times after startup.

ProblemType: Crash
Architecture: i386
Date: Mon Sep 14 19:42:52 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/Xorg
MachineType: Gigabyte Technology Co., Ltd. P35-DS4
NonfreeKernelModules: nvidia
Package: xserver-xorg-core 2:1.6.3-1ubuntu6
ProcCmdLine: root=UUID=4791c122-bcd2-4cc3-af9d-75f27417eb11 ro quiet splash
ProcCmdline: /usr/bin/X :0 -br -verbose -auth /var/run/gdm/auth-for-gdm-NQDFZp/database -nolisten tcp vt7
ProcEnviron:
 LANG=it_IT.UTF-8
 PATH=(custom, no user)
ProcVersionSignature: Ubuntu 2.6.31-10.34-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu5
 libgl1-mesa-glx 7.6.0~git20090817.7c422387-0ubuntu4
 libdrm2 2.4.13-1ubuntu1
 xserver-xorg-video-intel 2:2.8.1-1ubuntu1
 xserver-xorg-video-ati 1:6.12.99+git20090825.fc74e119-0ubuntu1
SegvAnalysis: Failure: Unknown offset literal: *%eax
Signal: 11
SourcePackage: xorg-server
StacktraceTop:
 ?? () from /lib/libc.so.6
 strtol () from /lib/libc.so.6
 RegisterExtensionNames ()
 AddExtension ()
 ?? () from /usr/lib/xorg/modules/extensions//libglx.so
Title: Xorg crashed with SIGSEGV in strtol()
Uname: Linux 2.6.31-10-generic i686
UserGroups:

dmi.bios.date: 09/17/2008
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F14C
dmi.board.name: P35-DS4
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF14C:bd09/17/2008:svnGigabyteTechnologyCo.,Ltd.:pnP35-DS4:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnP35-DS4:rvr:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: P35-DS4
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
fglrx: Not loaded
system:
 distro: Ubuntu
 architecture: i686kernel: 2.6.31-10-generic

[lspci]
01:00.0 VGA compatible controller [0300]: nVidia Corporation G80 [GeForce 8800 GTS] [10de:0193] (rev a2)
     Subsystem: XFX Pine Group Inc. Device [1682:2251]

[Apport retracing service (apport)]

StacktraceTop:*__GI_____strtol_l_internal (nptr=0xbff1306d "001 GLX",
*__GI_strtol (nptr=0xbff1306d "001 GLX", endptr=0xbff13068,
RegisterExtensionNames ()
AddExtension ()
?? () from /usr/lib/xorg/modules/extensions//libglx.so