(gdb) bt full
#0  0x0808b69a in ast_queue_frame (chan=0x81a913c, fin=0xb78941e4) at channel.c:963
        f = (struct ast_frame *) 0x82613b0
        cur = (struct ast_frame *) 0x22222222
        blah = 1
        qlen = 0
        __PRETTY_FUNCTION__ = "ast_queue_frame"
#1  0x0808ba6d in ast_queue_hangup (chan=0x81a913c) at channel.c:1011
        f = {frametype = AST_FRAME_CONTROL, subclass = 1, datalen = 0, samples = 0, mallocd = 0, mallocd_hdr_len = 0, offset = 0, src = 0x0, data = 0x0, delivery = {tv_sec = 0,
    tv_usec = 0}, frame_list = {next = 0x0}, flags = 0, ts = 0, len = 0, seqno = 0}
        __PRETTY_FUNCTION__ = "ast_queue_hangup"
#2  0xb7942123 in __sip_autodestruct (data=0xb7301d20) at chan_sip.c:2866
        p = (struct sip_pvt *) 0xb7301d20
        __PRETTY_FUNCTION__ = "__sip_autodestruct"
#3  0x08132352 in ast_sched_runq (con=0x81ed730) at sched.c:365
        current = (struct sched *) 0x826bd08
        tv = {tv_sec = 1206133954, tv_usec = 850507}
        numevents = 0
        res = 0
        __PRETTY_FUNCTION__ = "ast_sched_runq"
#4  0xb798d1bd in do_monitor (data=0x0) at chan_sip.c:18358
        res = 0
        dialog = (struct sip_pvt *) 0xb730e490
        t = 1206133954
        reloading = 0
        __PRETTY_FUNCTION__ = "do_monitor"
#5  0x0814671d in dummy_start (data=0x81fe6f8) at utils.c:870
        __cancel_buf = {__cancel_jmp_buf = {{__cancel_jmp_buf = {-1212252172, 0, -1215738992, -1215740984, -814964907, -182056918}, __mask_was_saved = 0}}, __pad = {0xb7894480, 0x0,
    0x0, 0x0}}
        __cancel_routine = (void (*)(void *)) 0x806e5b6 <ast_unregister_thread>
        __cancel_arg = (void *) 0xb7894b90
        not_first_call = 0
        ret = (void *) 0x0
        a = {start_routine = 0xb798cd20 <do_monitor>, data = 0x0, name = 0x81febc8 "do_monitor", ' ' <repeats 11 times>, "started at [18386] chan_sip.c restart_monitor()"}
        lock_info = (struct thr_lock_info *) 0x821e130
        mutex_attr = {__size = "\001\000\000", __align = 1}



(gdb) bt full
#0  0xb793808c in __sip_destroy (p=0x82659d0, lockowner=1, lockdialoglist=1) at chan_sip.c:4275
        cur = (struct sip_pvt *) 0x8255668
        prev = (struct sip_pvt *) 0x0
        cp = (struct sip_pkt *) 0xb7bca311
        __PRETTY_FUNCTION__ = "__sip_destroy"
#1  0xb7938ebc in sip_destroy (p=0x82659d0) at chan_sip.c:4450
        __PRETTY_FUNCTION__ = "sip_destroy"
#2  0xb79312f9 in __sip_autodestruct (data=0x82659d0) at chan_sip.c:2877
        p = (struct sip_pvt *) 0x82659d0
        __PRETTY_FUNCTION__ = "__sip_autodestruct"
#3  0x08132352 in ast_sched_runq (con=0x81f3b20) at sched.c:365
        current = (struct sched *) 0x81fe7a0
        tv = {tv_sec = 1206137532, tv_usec = 802538}
        numevents = 0
        res = 0
        __PRETTY_FUNCTION__ = "ast_sched_runq"
#4  0xb797c1bd in do_monitor (data=0x0) at chan_sip.c:18358
        res = 0
        dialog = (struct sip_pvt *) 0x0
        t = 1206137532
        reloading = 0
        __PRETTY_FUNCTION__ = "do_monitor"
#5  0x0814671d in dummy_start (data=0x81fe5f0) at utils.c:870
        __cancel_buf = {__cancel_jmp_buf = {{__cancel_jmp_buf = {-1212321804, 0, -1215808624, -1215810616, 1347061494, 1759515017}, __mask_was_saved = 0}}, __pad = {0xb7883480, 0x0,
    0x0, 0x0}}
        __cancel_routine = (void (*)(void *)) 0x806e5b6 <ast_unregister_thread>
        __cancel_arg = (void *) 0xb7883b90
        not_first_call = 0
        ret = (void *) 0x0
        a = {start_routine = 0xb797bd20 <do_monitor>, data = 0x0, name = 0x81feac0 "do_monitor", ' ' <repeats 11 times>, "started at [18386] chan_sip.c restart_monitor()"}
        lock_info = (struct thr_lock_info *) 0x821e108
        mutex_attr = {__size = "\001\000\000", __align = 1}