gnome-shell crashed with SIGSEGV in cogl_pipeline_set_layer_combine_constant_EXP()

[joshg]

Can't move mouse on icons in the dock

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: gnome-shell 3.1.92-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic i686
ApportVersion: 1.23-0ubuntu1
Architecture: i386
CrashCounter: 1
Date: Sat Sep 24 08:56:51 2011
ExecutablePath: /usr/bin/gnome-shell
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110904)
ProcCmdline: /usr/bin/gnome-shell
SegvAnalysis:
 Segfault happened at: 0xb018e2: testb $0x4,0x48(%edi)
 PC (0x00b018e2) ok
 source "$0x4" ok
 destination "0x48(%edi)" (0x00000048) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: gnome-shell
StacktraceTop:
 ?? () from /usr/lib/i386-linux-gnu/libcogl.so.5
 cogl_pipeline_set_layer_combine_constant_EXP () from /usr/lib/i386-linux-gnu/libcogl.so.5
 cogl_material_set_layer_combine_constant () from /usr/lib/i386-linux-gnu/libcogl.so.5
 st_theme_node_transition_paint () from /usr/lib/gnome-shell/libgnome-shell.so
 ?? () from /usr/lib/gnome-shell/libgnome-shell.so
Title: gnome-shell crashed with SIGSEGV in cogl_pipeline_set_layer_combine_constant_EXP()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare scanner

[Apport retracing service (apport)]

StacktraceTop:
 _cogl_pipeline_get_authority (difference=4, pipeline=0x0) at ./cogl-pipeline-private.h:881
 _cogl_pipeline_get_layer (pipeline=0x0, layer_index=1) at ./cogl-pipeline.c:1978
 cogl_pipeline_set_layer_combine_constant_EXP (pipeline=0x0, layer_index=1, constant_color=0xbf878cb0) at ./cogl-pipeline-layer-state.c:1127
 cogl_material_set_layer_combine_constant (material=0x0, layer_index=1, constant=0xbf878cb0) at ./cogl-material-compat.c:268
 st_theme_node_transition_paint (transition=0x95d0718, allocation=0xbf878d20, paint_opacity=255 '\377') at st/st-theme-node-transition.c:335