unity-window-decorator crashed with SIGSEGV in draw_decor_list()

[Per-Inge]

Binary package hint: compiz

Used "Try Ubuntu" with daily build 2/3 and logged in to Ubuntu One.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: compiz-gnome 1:0.9.4-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-5.32-generic 2.6.38-rc6
Uname: Linux 2.6.38-5-generic x86_64
Architecture: amd64
Date: Wed Mar 2 07:21:11 2011
ExecutablePath: /usr/bin/unity-window-decorator
LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110302)
ProcCmdline: /usr/bin/unity-window-decorator
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: compiz
StacktraceTop:
 ?? ()
 g_main_context_dispatch () from /lib/libglib-2.0.so.0
 ?? () from /lib/libglib-2.0.so.0
 g_main_loop_run () from /lib/libglib-2.0.so.0
 gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
Title: unity-window-decorator crashed with SIGSEGV in g_main_context_dispatch()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XsessionErrors:
 (nautilus:13762): GConf-CRITICAL **: gconf_value_free: assertion `value != NULL' failed
 (<unknown>:13751): dee-WARNING **: Transaction from com.canonical.Unity.ApplicationsPlace.SectionsModel is in the past. Ignoring transaction.
 (<unknown>:13751): dee-WARNING **: Transaction from com.canonical.Unity.ApplicationsPlace.GroupsModel is in the past. Ignoring transaction.

[Apport retracing service (apport)]

StacktraceTop:
 draw_decor_list (data=<value optimized out>) at /build/buildd/compiz-0.9.4/unity/unity_window_decorator/src/decorator.c:686
 g_main_dispatch (context=0x2080240) at /build/buildd/glib2.0-2.28.1/./glib/gmain.c:2440
 g_main_context_dispatch (context=0x2080240) at /build/buildd/glib2.0-2.28.1/./glib/gmain.c:3013
 g_main_context_iterate (context=0x2080240, block=<value optimized out>, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.28.1/./glib/gmain.c:3091
 g_main_loop_run (loop=0x2150770) at /build/buildd/glib2.0-2.28.1/./glib/gmain.c:3299