$ gdb nautilus
GNU gdb (GDB) 7.4
Copyright (C) 2012 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-unknown-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/bin/nautilus...done.
(gdb) run
Starting program: /usr/bin/nautilus
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/libthread_db.so.1".
[New Thread 0x7fffeb86f700 (LWP 14496)]
[New Thread 0x7fffeb06e700 (LWP 14497)]
[New Thread 0x7fffea86d700 (LWP 14498)]
[New Thread 0x7fffe9e64700 (LWP 14499)]

(nautilus:14493): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(nautilus:14493): GLib-GIO-CRITICAL **: g_mount_is_shadowed: assertion `G_IS_MOUNT (mount)' failed

(nautilus:14493): GLib-GIO-CRITICAL **: g_mount_get_volume: assertion `G_IS_MOUNT (mount)' failed

(nautilus:14493): GLib-GIO-CRITICAL **: g_mount_get_default_location: assertion `G_IS_MOUNT (mount)' failed

(nautilus:14493): GLib-GIO-CRITICAL **: g_file_is_native: assertion `G_IS_FILE (file)' failed

(nautilus:14493): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(nautilus:14493): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(nautilus:14493): GLib-GObject-WARNING **: invalid uninstantiatable type `<invalid>' in cast to `GMount'

(nautilus:14493): GLib-GIO-CRITICAL **: g_mount_get_default_location: assertion `G_IS_MOUNT (mount)' failed

(nautilus:14493): GLib-GIO-CRITICAL **: g_mount_get_icon: assertion `G_IS_MOUNT (mount)' failed

(nautilus:14493): GLib-GIO-CRITICAL **: g_file_get_uri: assertion `G_IS_FILE (file)' failed

(nautilus:14493): GLib-GIO-CRITICAL **: g_mount_get_name: assertion `G_IS_MOUNT (mount)' failed

(nautilus:14493): GLib-GIO-CRITICAL **: g_file_get_parse_name: assertion `G_IS_FILE (file)' failed

(nautilus:14493): Gtk-CRITICAL **: gtk_icon_theme_lookup_by_gicon: assertion `G_IS_ICON (icon)' failed

(nautilus:14493): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(nautilus:14493): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(nautilus:14493): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(nautilus:14493): GLib-GIO-CRITICAL **: g_mount_get_default_location: assertion `G_IS_MOUNT (mount)' failed

(nautilus:14493): GLib-GIO-CRITICAL **: g_mount_get_icon: assertion `G_IS_MOUNT (mount)' failed

(nautilus:14493): GLib-GIO-CRITICAL **: g_file_get_uri: assertion `G_IS_FILE (file)' failed

(nautilus:14493): GLib-GIO-CRITICAL **: g_mount_get_name: assertion `G_IS_MOUNT (mount)' failed

(nautilus:14493): GLib-GIO-CRITICAL **: g_file_get_parse_name: assertion `G_IS_FILE (file)' failed

(nautilus:14493): Gtk-CRITICAL **: gtk_icon_theme_lookup_by_gicon: assertion `G_IS_ICON (icon)' failed

(nautilus:14493): GLib-GIO-CRITICAL **: g_mount_can_eject: assertion `G_IS_MOUNT (mount)' failed

(nautilus:14493): GLib-GIO-CRITICAL **: g_mount_can_unmount: assertion `G_IS_MOUNT (mount)' failed

(nautilus:14493): GLib-GObject-CRITICAL **: g_value_type_compatible: assertion `G_TYPE_IS_VALUE (src_type)' failed

(nautilus:14493): Gtk-WARNING **: gtkliststore.c:1050: invalid object type `

(nautilus:14493): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(nautilus:14493): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(nautilus:14493): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(nautilus:14493): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(nautilus:14493): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

Program received signal SIGBUS, Bus error.
[Switching to Thread 0x7fffeb06e700 (LWP 14497)]
0x00007ffff54e144b in g_file_get_path () from /usr/lib/libgio-2.0.so.0
(gdb) quit
A debugging session is active.

	Inferior 1 [process 14493] will be killed.

Quit anyway? (y or n) y
