gnome-panel crashed with SIGSEGV in gtk_container_forall()

[Dmitry Shachnev]

Binary package hint: gnome-panel

The Panel crashed when I ran "gnome-shell --replace".
This happened when I was testing the oneiric daily live-cd with the Classic GNOME session.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: gnome-panel 1:3.0.2-0ubuntu4
ProcVersionSignature: Ubuntu 3.0-0.1-generic 3.0.0-rc2
Uname: Linux 3.0-0-generic i686
Architecture: i386
Date: Thu Jun 16 10:32:53 2011
ExecutablePath: /usr/bin/gnome-panel
LiveMediaBuild: Ubuntu 11.10 "Oneiric Ocelot" - Alpha i386 (20110615)
ProcCmdline: gnome-panel
ProcCwd: /home/ubuntu
ProcEnviron:
 LANGUAGE=ru_RU:en
 LANG=ru_RU.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0xb7fe2f: mov 0x4c(%eax),%edx
 PC (0x00b7fe2f) ok
 source "0x4c(%eax)" (0xaaaaaaf6) not located in a known VMA region (needed readable region)!
 destination "%edx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: gnome-panel
StacktraceTop:
 ?? () from /usr/lib/libgtk-3.so.0
 ?? () from /usr/lib/libgtk-3.so.0
 gtk_container_forall () from /usr/lib/libgtk-3.so.0
 ?? () from /usr/lib/libgtk-3.so.0
 ?? () from /usr/lib/libgtk-3.so.0
Title: gnome-panel crashed with SIGSEGV in gtk_container_forall()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 gtk_widget_pop_verify_invariants (widget=0x86df800) at /build/buildd/gtk+3.0-3.1.6/./gtk/gtkwidget.c:8940
 gtk_bin_forall (container=0x86df038, include_internals=1, callback=0xb87970 <gtk_widget_unrealize>, callback_data=0x0) at /build/buildd/gtk+3.0-3.1.6/./gtk/gtkbin.c:172
 gtk_container_forall (container=0x86df038, callback=0xb87970 <gtk_widget_unrealize>, callback_data=0x0) at /build/buildd/gtk+3.0-3.1.6/./gtk/gtkcontainer.c:2030
 gtk_widget_real_unrealize (widget=0x86df038) at /build/buildd/gtk+3.0-3.1.6/./gtk/gtkwidget.c:10759
 gtk_event_box_unrealize (widget=0x86df038) at /build/buildd/gtk+3.0-3.1.6/./gtk/gtkeventbox.c:472