#0  0x080a537b in __ast_pthread_mutex_trylock (filename=0x81dbaf4 "channel.c", lineno=1117,
    func=0x81dd263 "ast_queue_hangup_with_cause", mutex_name=0x81dca33 "&chan->lock_dont_use", t=0xa4)                              ?
    at /root/svn_asterisk/Asterisk/include/asterisk/lock.h:606                                                                 >
        res = 1173386760
        lt = 0xa4
        canlog = 1305033616
        bt = 0x4dc931d8
        __PRETTY_FUNCTION__ = "__ast_pthread_mutex_trylock"
#1  0x080a5615 in ast_queue_hangup_with_cause (chan=0x0, cause=111) at channel.c:1117
        f = {frametype = AST_FRAME_CONTROL, subclass = 1, datalen = 0, samples = 0, mallocd = 0, mallocd_hdr_len = 0, offset = 0,
          src = 0x0, data = {ptr = 0x6f, uint32 = 111, pad = "o\000\000\000\000\000\000"}, delivery = {tv_sec = 0, tv_usec = 0},
          frame_list = {next = 0x0}, flags = 0, ts = 0, len = 0, seqno = 0}
        __PRETTY_FUNCTION__ = "ast_queue_hangup_with_cause"
#2  0x45e7b8d5 in __sip_autodestruct (data=0x613bb5d0) at chan_sip.c:4031
        p = 0x613bb5d0
        __PRETTY_FUNCTION__ = "__sip_autodestruct"
#3  0x08183e72 in ast_sched_runq (con=0x4d97d3c8) at sched.c:621
        current = 0x5e47bb68
        when = {tv_sec = 1305103636, tv_usec = 53488}
        numevents = 8
        res = 1000
        __PRETTY_FUNCTION__ = "ast_sched_runq"
#4  0x45ed9110 in do_monitor (data=0x0) at chan_sip.c:22952
        res = 1
        t = 1305103636
        reloading = 0
        __PRETTY_FUNCTION__ = "do_monitor"
#5  0x081a0dba in dummy_start (data=0x4d9887f8) at utils.c:968
        __cancel_buf = {__cancel_jmp_buf = {{__cancel_jmp_buf = {9453556, 0, 1305033616, 1305031608, 1101258078, 74506942},
              __mask_was_saved = 0}}, __pad = {0x4dc93470, 0x0, 0x0, 0x0}}
        __cancel_routine = 0x8078763 <ast_unregister_thread>
        __cancel_arg = 0x4dc93b90
        not_first_call = 0
        ret = 0x0
        a = {start_routine = 0x45ed8d98 <do_monitor>, data = 0x0,
          name = 0x4d9982f8 "do_monitor", ' ' <repeats 11 times>, "started at [22979] chan_sip.c restart_monitor()"}
        lock_info = 0x9218650
        mutex_attr = {__size = "\001\000\000", __align = 1}
        __PRETTY_FUNCTION__ = "dummy_start"
#6  0x008f4832 in start_thread () from /lib/libpthread.so.0
---Type <return> to continue, or q <return> to quit---
No symbol table info available.
#7  0x00849e0e in clone () from /lib/libc.so.6
No symbol table info available.