Xorg assert failure: *** glibc detected *** /usr/bin/X: free(): invalid next size (fast): 0xb962a310 ***

[Tony Espy]

I ran into this after upgrading my system this morning.

Alll I did was reboot after the dist-upgrade, login, and start launching applications. This was followed by series of crashes ( chromium-browser first, then this bug ).

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: xserver-xorg-core 2:1.11.4-0ubuntu6
ProcVersionSignature: Ubuntu 3.2.0-18.29-generic-pae 3.2.9
Uname: Linux 3.2.0-18-generic-pae i686
.tmp.unity.support.test.0:

ApportVersion: 1.94.1-0ubuntu2
Architecture: i386
AssertionMessage: *** glibc detected *** /usr/bin/X: free(): invalid next size (fast): 0xb962a310 ***
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
Date: Fri Mar 16 09:07:17 2012
DistUpgraded: Log time: 2012-03-03 10:26:58.374846
DistroCodename: precise
DistroVariant: ubuntu
ExecutablePath: /usr/bin/Xorg
ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
GraphicsCard:
 Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:21c1]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
MachineType: LENOVO 2901CTO
ProcCmdline: /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch -background none
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-18-generic-pae root=UUID=b154a7ff-6a2a-4dae-804d-0e17319a3cec ro quiet splash vt.handoff=7
Signal: 6
SourcePackage: xorg-server
StacktraceTop:
 WriteToClient ()
 ?? ()
 ?? ()
 ?? ()
 ?? ()
Title: Xorg assert failure: *** glibc detected *** /usr/bin/X: free(): invalid next size (fast): 0xb962a310 ***
UpgradeStatus: Upgraded to precise on 2012-03-03 (12 days ago)
UserGroups:

dmi.bios.date: 06/07/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6UET38WW (1.16 )
dmi.board.name: 2901CTO
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:bvr6UET38WW(1.16):bd06/07/2010:svnLENOVO:pn2901CTO:pvrThinkPadT410s:rvnLENOVO:rn2901CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2901CTO
dmi.product.version: ThinkPad T410s
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.7.0+bzr3035-0ubuntu1
version.libdrm2: libdrm2 2.4.30-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.1-0ubuntu4
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.1-0ubuntu4
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #943880, 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.