glade-gtk2 crashed with SIGSEGV in g_type_check_instance()

In Ubuntu 12.04 Glade freezes about once every 5 to 10 minutes while in use.

I've not noticed any pattern to what causes it to freeze (not very helpful for a bug report), except it only seems to freeze while in use (as opposed to freezing while in the background).

When it freezes, it becomes unresponsive and doesn't redraw itself if the window is resized.

This is the file I was editing when glade crashed most recently. https://github.com/ccouzens/Totem-Music-Library/blob/fa29467c347a56c36eb3109bd3cb3837b715e469/musiclibrary.ui

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: glade-gtk2 3.8.0-0ubuntu4
ProcVersionSignature: Ubuntu 3.2.0-10.17-generic 3.2.1
Uname: Linux 3.2.0-10-generic x86_64
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
CrashCounter: 1
Date: Mon Jan 23 21:43:01 2012
ExecutablePath: /usr/bin/glade-gtk2
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64+mac (20110901)
ProcCmdline: glade-gtk2
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7fc1d2d3d155 <g_type_check_instance+21>: mov (%rax),%rdi
 PC (0x7fc1d2d3d155) ok
 source "(%rax)" (0x00000002) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: glade-3
StacktraceTop:
 g_type_check_instance () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_handlers_disconnect_matched () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? ()
 g_closure_unref () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_handlers_destroy () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: glade-gtk2 crashed with SIGSEGV in g_type_check_instance()
UpgradeStatus: Upgraded to precise on 2012-01-21 (2 days ago)
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