$ gdb gnome-panel
GNU gdb (Gentoo 7.1 p1) 7.1
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-pc-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.gentoo.org/>...
Reading symbols from /usr/bin/gnome-panel...done.
(gdb) run
Starting program: /usr/bin/gnome-panel 
Traceback (most recent call last):
  File "/usr/share/gdb/auto-load/usr/lib64/libgobject-2.0.so.0.2400.1-gdb.py", line 9, in <module>
    from gobject import register
  File "/usr/share/glib-2.0/gdb/gobject.py", line 3, in <module>
    import gdb.backtrace
ImportError: No module named backtrace
[Thread debugging using libthread_db enabled]

GLib-ERROR **: gmem.c:137: failed to allocate 187644257854905 bytes
aborting...

Program received signal SIGABRT, Aborted.
0x00007fffebbc31a5 in raise () from /lib/libc.so.6
(gdb) thread apply all bt

Thread 1 (Thread 0x7ffff7e938a0 (LWP 7676)):
#0  0x00007fffebbc31a5 in raise () from /lib/libc.so.6
#1  0x00007fffebbc45d0 in abort () from /lib/libc.so.6
#2  0x00007fffeca99830 in g_logv () from /usr/lib/libglib-2.0.so.0
#3  0x00007fffeca998b3 in g_log () from /usr/lib/libglib-2.0.so.0
#4  0x00007fffeca97cde in g_malloc () from /usr/lib/libglib-2.0.so.0
#5  0x00007fffeca6bfed in g_base64_encode () from /usr/lib/libglib-2.0.so.0
#6  0x00007fffe64b9a8f in ?? () from /usr/lib64/gtk-2.0/2.10.0/loaders/libpixbufloader-png.so
#7  0x00007ffff174d4b3 in ?? () from /usr/lib/libgdk_pixbuf-2.0.so.0
#8  0x00007ffff174e87c in gdk_pixbuf_new_from_file () from /usr/lib/libgdk_pixbuf-2.0.so.0
#9  0x0000000000440d4a in panel_make_menu_icon (icon_theme=<value optimized out>, icon=<value optimized out>, fallback=<value optimized out>, size=24, long_operation=0x7fffffffd918) at menu.c:345
#10 0x000000000043d975 in panel_run_dialog_add_icon_idle (dialog=0x920600) at panel-run-dialog.c:775
#11 0x00007fffeca8eecf in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#12 0x00007fffeca92d08 in ?? () from /usr/lib/libglib-2.0.so.0
#13 0x00007fffeca9321d in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#14 0x00007ffff1f66197 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#15 0x0000000000424e3c in main (argc=1, argv=0x7fffffffdc58) at main.c:137
(gdb) q
A debugging session is active.

	Inferior 1 [process 7676] will be killed.

Quit anyway? (y or n) y