Comment 4 for bug 72954

Debug backtrace:

 #0 IA__g_str_hash (v=0xfeb9c8b7) at gstring.c:95
        h = <value optimized out>
 #1 0xb77698cb in IA__g_hash_table_lookup_extended (hash_table=0x8d77e20, lookup_key=0xfeb9c8b7, orig_key=0xb4a43238,
     value=0xb4a43234) at ghash.c:231
        node = <value optimized out>
        __PRETTY_FUNCTION__ = "IA__g_hash_table_lookup_extended"
 #2 0xb5ef1de5 in push_callback_into_stack_table (table=0x8d77e20,
     callback_name=0xfeb9c8b7 <Address 0xfeb9c8b7 out of bounds>, callback=0xa343009) at gnome-vfs-module-callback.c:234
        orig_key = (gpointer) 0xb776980b
        old_value = (gpointer) 0x8f2aa60
        stack = <value optimized out>
 #3 0xb7769856 in IA__g_hash_table_foreach (hash_table=0x94aa5a0, func=0xb5ef1e40 <copy_one_callback_to_stack>,
     user_data=0x8d77e20) at ghash.c:662
        node = (GHashNode *) 0x93f2b1f
        i = 7
        __PRETTY_FUNCTION__ = "IA__g_hash_table_foreach"
 #4 0xb5ef1cc8 in copy_callback_table_to_stack_table (source=0xfeb9c8b7, target=<value optimized out>)
     at gnome-vfs-module-callback.c:339
 No locals.
 #5 0xb5ee79ba in _gnome_vfs_job_execute (job=0xa81fd00) at gnome-vfs-job.c:1742
 No locals.
 #6 0xb5ee6fce in thread_entry_point (data=0xa81fd00, user_data=0x0) at gnome-vfs-job-queue.c:66
        complete = <value optimized out>
 #7 0xb7795ce8 in g_thread_pool_thread_proxy (data=0x8da0d50) at gthreadpool.c:265
        task = (gpointer) 0xa81fd00
        pool = (GRealThreadPool *) 0x8da0d50
 #8 0xb779438f in g_thread_create_proxy (data=0xa710400) at gthread.c:553
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
 #9 0xb7507504 in start_thread () from