(gdb) bt
#0  0x0807447a in ao2_iterator_next (a=0xb7069270) at astobj2.c:576
#1  0x01ec8abb in handle_statechange (sc=0xa6a22f0) at app_queue.c:623
#2  0x01ec8cce in device_state_thread (data=0x0) at app_queue.c:703
#3  0x0811abe9 in dummy_start (data=0xa1d40e8) at utils.c:852
#4  0x007ab45b in start_thread () from /lib/libpthread.so.0
#5  0x00702c4e in clone () from /lib/libc.so.6

#0  0x0807447a in ao2_iterator_next (a=0xb7069270) at astobj2.c:576
576			a->version = p->version;
(gdb) p p
$1 = (struct bucket_list *) 0x4880bede
(gdb) p p->version
Cannot access memory at address 0x4880bee2

(gdb) bt full
#0  0x0807447a in ao2_iterator_next (a=0xb7069270) at astobj2.c:576
	lim = 1
	p = (struct bucket_list *) 0x4880bede
	ret = (void *) 0x0
#1  0x01ec8abb in handle_statechange (sc=0xa6a22f0) at app_queue.c:623
	q = (struct call_queue *) 0xa393b70
	cur = (struct member *) 0xb51ddff0
	mem_iter = {
  c = 0xa3944d0, 
  flags = 0, 
  bucket = 19, 
  c_version = 904, 
  obj = 0xb4d475e0, 
  version = 903
}
	curint = (struct member_interface *) 0xb5b1d0d0
	loc = 0xb70691f6 "5098"
	technology = 0xb70691f0 "Agent"
	__PRETTY_FUNCTION__ = "handle_statechange"
#2  0x01ec8cce in device_state_thread (data=0x0) at app_queue.c:703
	sc = (struct statechange *) 0xa6a22f0
	__PRETTY_FUNCTION__ = "device_state_thread"
#3  0x0811abe9 in dummy_start (data=0xa1d40e8) at utils.c:852
	__cancel_buf = {
  __cancel_jmp_buf = {{
      __cancel_jmp_buf = {8101876, 0, -1224303728, -1224305752, 607241816, -1691943025}, 
      __mask_was_saved = 0
    }}, 
  __pad = {0xb7069460, 0x0, 0x0, 0x0}
}
	__cancel_routine = (void (*)(void *)) 0x806a9a5 <ast_unregister_thread>
	__cancel_arg = (void *) 0xb7069b90
	not_first_call = 0
	ret = (void *) 0x0
	a = {
  start_routine = 0x1ec8b5b <device_state_thread>, 
  data = 0x0, 
  name = 0xa1d8440 "device_state_thread  started at [ 5041] app_queue.c load_module()"
}
	lock_info = (struct thr_lock_info *) 0xa1df218
	mutex_attr = {
  __size = "\001\000\000", 
  __align = 1
}
#4  0x007ab45b in start_thread () from /lib/libpthread.so.0
No symbol table info available.
#5  0x00702c4e in clone () from /lib/libc.so.6
No symbol table info available.