compiz crashed with SIGSEGV while switching resolutions

I switched between two resolutions while doing nVidia driver Xorg testing; upon switching back to my original one, Compiz crashed.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: libnux-0.9-0 0.9.34-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-7.35-generic 2.6.38
Uname: Linux 2.6.38-7-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
CrashCounter: 1
Date: Fri Mar 18 15:23:11 2011
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110302)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=en_CA:en
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7f260eb28ad0: movslq 0x314,%rax
 PC (0x7f260eb28ad0) ok
 source "0x314" (0x00000314) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: nux
StacktraceTop:
 ?? () from /usr/lib/nvidia-current/libnvidia-glcore.so.270.29
 ?? () from /usr/lib/nvidia-current/libnvidia-glcore.so.270.29
 ?? () from /usr/lib/nvidia-current/libnvidia-glcore.so.270.29
 ?? () from /usr/lib/nvidia-current/libnvidia-glcore.so.270.29
 ?? () from /usr/lib/nvidia-current/libnvidia-glcore.so.270.29
Title: compiz crashed with SIGSEGV
UpgradeStatus: Upgraded to natty on 2011-03-18 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
---
.proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.gpus.0_: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.registry_: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 270.30 Fri Feb 25 14:34:55 PST 2011
 GCC version: gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-7ubuntu1)
.proc.driver.nvidia.version_:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 270.30 Fri Feb 25 14:34:55 PST 2011
 GCC version: gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-7ubuntu1)
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,grid,resize,imgpng,mousepoll,vpswitch,gnomecompat,move,regex,snap,place,neg,animation,wall,workarounds,session,expo,ezoom,staticswitcher,fade,scale,unityshell]
CompositorRunning: compiz
DistUpgraded: Log time: 2011-03-08 22:45:32.018523
DistroCodename: natty
DistroRelease: Ubuntu 11.04
DistroVariant: ubuntu
DkmsStatus: nvidia-current, 270.30, 2.6.38-7-generic, x86_64: installed
EcryptfsInUse: Yes
GraphicsCard:
 nVidia Corporation G84 [GeForce 8600M GT] [10de:0407] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: COMPAL Electronics Inc Device [14c0:0025]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110302)
InstallationMedia_: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110302)
InstallationMedia__: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110302)
JockeyStatus:
 xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, In use)
 pkg:sl-modem-daemon - Software modem (Proprietary, Disabled, Not in use)
MachineType: - N/A
NonfreeKernelModules: nvidia
Package: nvidia-graphics-drivers (not installed)
ProcEnviron:
 LANGUAGE=en_CA:en
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-7-generic root=UUID=6875731c-423f-488a-8a41-fcfb8f7b7718 ro splash quiet quiet splash vt.handoff=7
ProcKernelCmdLine_: BOOT_IMAGE=/boot/vmlinuz-2.6.38-7-generic root=UUID=6875731c-423f-488a-8a41-fcfb8f7b7718 ro splash quiet quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 2.6.38-7.38-generic 2.6.38
ProcVersionSignature_: Ubuntu 2.6.38-7.38-generic 2.6.38
ProcVersionSignature__: Ubuntu 2.6.38-7.38-generic 2.6.38
Renderer: Unknown
Tags: natty running-unity natty running-unity ubuntu compiz-0.9 natty running-unity ubuntu compiz-0.9
Uname: Linux 2.6.38-7-generic x86_64
UpgradeStatus: Upgraded to natty on 2011-03-25 (6 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 09/27/2007
dmi.bios.vendor: COMPAL
dmi.bios.version: 1.13
dmi.board.name: IFL90
dmi.board.vendor: -
dmi.board.version: IFT00
dmi.chassis.asset.tag: -
dmi.chassis.type: 10
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnCOMPAL:bvr1.13:bd09/27/2007:svn-:pnN/A:pvrN/A:rvn-:rnIFL90:rvrIFT00:cvnNoEnclosure:ct10:cvrN/A:
dmi.product.name: N/A
dmi.product.version: N/A
dmi.sys.vendor: -
version.compiz: compiz 1:0.9.4git20110322-0ubuntu5
version.libdrm2: libdrm2 2.4.23-1ubuntu5
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu3
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu11
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu6