Xorg assert failure: X: corrupted double-linked list: 0x00000000041d9420 ***

[Robbie Williamson]

Message occured when I logged into Classic Desktop (no effects)....unity core dumps right now.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: xserver-xorg-core 2:1.9.99.901+git20110131.be3be758-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-1.28-generic 2.6.38-rc2
Uname: Linux 2.6.38-1-generic x86_64
Architecture: amd64
AssertionMessage: *** glibc detected *** /usr/bin/X: corrupted double-linked list: 0x00000000041d9420 ***
DRM.card0.DP.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.DP.2:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.HDMI.A.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1440x900 1440x900
 edid-base64: AP///////wAwrnRAAAAAACASAQOAHRJ46tCjlltXlCYjUlkAAAABAQEBAQEBAQEBAQEBAQEB2CegjFGEGjAwIDYAH7QQAAAYNCGgjFGEGjAwIDYAH7QQAAAYAAAADwCVCjKVCigeAQAwZABVAAAA/gBMVEQxMzNFUTFCCiAgAHM=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
Date: Tue Feb 1 14:06:12 2011
DistUpgraded: Yes, recently upgraded Log time: 2010-06-03 15:16:15.473132
DistroCodename: natty
DistroVariant: ubuntu
ExecutablePath: /usr/bin/Xorg
GraphicsCard:
 Subsystem: Lenovo Device [17aa:20e4]
   Subsystem: Lenovo Device [17aa:20e4]
MachineType: LENOVO 2777CTO
ProcCmdline: /usr/bin/X :0 -br -verbose -auth /var/run/gdm/auth-for-gdm-p6mNny/database -nolisten tcp
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-1-generic root=UUID=185050f9-b1be-4215-889f-803f2bacff21 ro crashkernel=384M-2G:64M,2G-:128M quiet splash vt.handoff=7
ProcKernelCmdLine_: BOOT_IMAGE=/boot/vmlinuz-2.6.38-1-generic root=UUID=185050f9-b1be-4215-889f-803f2bacff21 ro crashkernel=384M-2G:64M,2G-:128M quiet splash vt.handoff=7
Signal: 6
SourcePackage: xorg-server
StacktraceTop:
 raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
 abort () at abort.c:92
 __libc_message (do_abort=2, fmt=0x7f64f9ace790 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:189
 malloc_printerr (action=3, str=0x7f64f9acb95d "corrupted double-linked list", ptr=<value optimized out>) at malloc.c:6283
 _int_free (av=0x7f64f9d081a0, p=0x41d9420) at malloc.c:4964
Title: Xorg assert failure: *** glibc detected *** /usr/bin/X: corrupted double-linked list: 0x00000000041d9420 ***
UserGroups:

dmi.bios.date: 05/15/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 6EET41WW (3.01 )
dmi.board.name: 2777CTO
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:bvr6EET41WW(3.01):bd05/15/2009:svnLENOVO:pn2777CTO:pvrThinkPadX301:rvnLENOVO:rn2777CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2777CTO
dmi.product.version: ThinkPad X301
dmi.sys.vendor: LENOVO
version.libdrm2: libdrm2 2.4.23-1ubuntu3
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10-1ubuntu1
version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.13.2+git20110124.fadee040-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu4

[Apport retracing service (apport)]

StacktraceTop:
 *__GI_raise (sig=6)
 *__GI_abort () at abort.c:59