(gdb) bt full
#0  0x0811e592 in ast_rtcp_write (data=0xb300c188) at rtp.c:3536
	rtp = (struct ast_rtp *) 0xb300c188
	res = 136550392
#1  0x081469ed in ast_sched_runq (con=0x82397f8) at sched.c:489
	current = (struct sched *) 0xb36d3828
	when = {tv_sec = 1259847634, tv_usec = 886907}
	numevents = 0
	res = -1226864354
	__PRETTY_FUNCTION__ = "ast_sched_runq"
#2  0xb6e55722 in do_monitor (data=0x0) at chan_sip.c:21401
	res = 0
	t = 1259847634
	reloading = 0
	__PRETTY_FUNCTION__ = "do_monitor"
#3  0x0815ab75 in dummy_start (data=0x8237f78) at utils.c:968
	__cancel_buf = {__cancel_jmp_buf = {{__cancel_jmp_buf = {-1211928588, 0, -1238021232, -1238023208, 1160175765, 83266537}, 
      __mask_was_saved = 0}}, __pad = {0xb6354490, 0x0, 0x0, 0x0}}
	__cancel_routine = (void (*)(void *)) 0x8076a46 <ast_unregister_thread>
	__cancel_arg = (void *) 0xb6354b90
	not_first_call = 0
	ret = (void *) 0x0
	a = {start_routine = 0xb6e55442 <do_monitor>, data = 0x0, 
  name = 0x8237f88 "do_monitor", ' ' <repeats 11 times>, "started at [21428] chan_sip.c restart_monitor()"}
#4  0xb7c274fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
No symbol table info available.
#5  0xb7d14e5e in clone () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
(gdb)