Xorg assert failure: *** glibc detected *** /usr/bin/X: corrupted double-linked list: 0x0aa06db8 ***

[gentl.ice]

after restart session open a windows that it was error

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: xserver-xorg-core 2:1.9.99.901+git20110131.be3be758-0ubuntu6
ProcVersionSignature: Ubuntu 2.6.38-4.31-generic 2.6.38-rc5
Uname: Linux 2.6.38-4-generic i686
NonfreeKernelModules: wl
Architecture: i386
AssertionMessage: *** glibc detected *** /usr/bin/X: corrupted double-linked list: 0x0aa06db8 ***
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1280x800
 edid-base64: AP///////wAGr3QiAAAAAAESAQOAIRV4Chz1l1hQjicnUFQAAAABAQEBAQEBAQEBAQEBAQEB1hsAsVAgEDAQMBMAS88QAAAZ1hsAsVAgEDAQMBMAS88QAAAAAAAA/gBXNjUxRwBCMTU0RVcyAAAA/gAxQU1VdJXI/wEBCiAgAMU=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
Date: Sun Feb 20 18:20:36 2011
DistUpgraded: Yes, recently upgraded Log time: 2011-02-20 16:45:23.529526
DistroCodename: natty
DistroVariant: ubuntu
DkmsStatus:
 bcmwl, 5.100.82.38+bdcom, 2.6.35-25-generic, i686: installed
 bcmwl, 5.100.82.38+bdcom, 2.6.38-4-generic, i686: installed
ExecutablePath: /usr/bin/Xorg
GraphicsCard:
 Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) [8086:2a02] (rev 0c) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:023a]
   Subsystem: Dell Device [1028:023a]
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: Dell Inc. Dell 500
ProcCmdline: /usr/bin/X :0 -nr -verbose -auth /var/run/gdm/auth-for-gdm-BqxaY9/database -nolisten tcp vt7
ProcEnviron:
 LANG=ru_UA.UTF-8
 PATH=(custom, no user)
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-4-generic root=UUID=9b0b401f-c8ef-4b78-b254-6ecd8d2edbdd ro quiet splash vt.handoff=7
ProcKernelCmdLine_: BOOT_IMAGE=/boot/vmlinuz-2.6.38-4-generic root=UUID=9b0b401f-c8ef-4b78-b254-6ecd8d2edbdd ro quiet splash vt.handoff=7
Renderer: Unknown
Signal: 6
SourcePackage: xorg-server
StacktraceTop:
 __kernel_vsyscall ()
 raise () from /lib/libc.so.6
 abort () from /lib/libc.so.6
 ?? () from /lib/libc.so.6
 ?? () from /lib/libc.so.6
Title: Xorg assert failure: *** glibc detected *** /usr/bin/X: corrupted double-linked list: 0x0aa06db8 ***
UserGroups:

dmi.bios.date: 04/18/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A02
dmi.board.name: 0M916F
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA02:bd04/18/2008:svnDellInc.:pnDell500:pvr:rvnDellInc.:rn0M916F:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Dell 500
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.2.1+glibmainloop4-0ubuntu11
version.libdrm2: libdrm2 2.4.23-1ubuntu3
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1~git20110215.cc1636b6-0ubuntu2
version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu6
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-1ubuntu9
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu4

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #716251, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.