gnome-panel crashed with SIGSEGV

[ahfuji]

Binary package hint: gnome-panel

Gnome panel is down suddenly after unlocking my desktop.
I'm running hardy beta and gnome panel is upgraded to the latest version.

ProblemType: Crash
Architecture: i386
Date: Fri Mar 28 15:17:22 2008
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/bin/gnome-panel
Package: gnome-panel 1:2.22.0-0ubuntu2
PackageArchitecture: i386
ProcCmdline: gnome-panel --sm-config-prefix /gnome-panel-qnkM6s/ --sm-client-id 117f000101000120629070300000055580000 --screen 0
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=ja_JP.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: gnome-panel
StacktraceTop:
 ?? () from /usr/lib/libgtk-x11-2.0.so.0
 ?? ()
 ?? () from /usr/lib/libgtk-x11-2.0.so.0
 ?? () from /usr/lib/libgtk-x11-2.0.so.0
 ?? ()
Title: gnome-panel crashed with SIGSEGV
Uname: Linux 2.6.24-12-generic i686
UserGroups: adm admin audio cdrom dialout dip floppy fuse lpadmin plugdev video