(gdb) bt
#0  ast_rtp_destroy (rtp=0x8183838) at rtp.c:1165
#1  0xb7c64b64 in __sip_destroy (p=0x8180d80, lockowner=1) at chan_sip.c:2104
#2  0xb7c70cac in __sip_autodestruct (data=0x8180d80) at chan_sip.c:2263
#3  0x08056378 in ast_sched_runq (con=0x8133890) at sched.c:374
#4  0xb7c9b14a in do_monitor (data=0x0) at chan_sip.c:11258
#5  0x00a6d1d5 in start_thread () from /lib/tls/libpthread.so.0
#6  0x007ca2da in clone () from /lib/tls/libc.so.6
(gdb) bt full
#0  ast_rtp_destroy (rtp=0x8183838) at rtp.c:1165
No locals.
#1  0xb7c64b64 in __sip_destroy (p=0x8180d80, lockowner=1) at chan_sip.c:2104
        hist = (struct sip_history *) 0x8180d9c
        cur = (struct sip_pvt *) 0x9
        prev = (struct sip_pvt *) 0x0
        cp = (struct sip_pkt *) 0x8180d9c
        __PRETTY_FUNCTION__ = "__sip_destroy"
#2  0xb7c70cac in __sip_autodestruct (data=0x8180d80) at chan_sip.c:2263
        __PRETTY_FUNCTION__ = "__sip_autodestruct"
#3  0x08056378 in ast_sched_runq (con=0x8133890) at sched.c:374
        tv = warning: Unhandled dwarf expresion opcode DW_OP_piece
{tv_sec = 10520, tv_usec = 9}
        x = 0
        res = 239321
#4  0xb7c9b14a in do_monitor (data=0x0) at chan_sip.c:11258
        res = 10520
        sip = (struct sip_pvt *) 0x8133890
        peer = (struct sip_peer *) 0x0
        t = 1136369093
        fastrestart = 0
        lastpeernum = -1
        curpeernum = 20
        reloading = 135477392
        __PRETTY_FUNCTION__ = "do_monitor"
#5  0x00a6d1d5 in start_thread () from /lib/tls/libpthread.so.0
No symbol table info available.
#6  0x007ca2da in clone () from /lib/tls/libc.so.6
No symbol table info available.

(gdb) f 0
#0  ast_rtp_destroy (rtp=0x8183838) at rtp.c:1165
1167    in rtp.c
(gdb) p rtp
$1 = (struct ast_rtp *) 0x8183838
(gdb) p *rtp
$2 = {s = 136147520, resp = 72 'H', f = {frametype = 0, subclass = 0, datalen = 0, samples = 0, mallocd = 0, offset = 0,
    src = 0x0, data = 0x0, delivery = {tv_sec = 0, tv_usec = 0}, prev = 0x0, next = 0x0},
  rawdata = '\0' <repeats 8255 times>, ssrc = 1023989969, lastts = 0, lastdigitts = 0, lastrxts = 0, lastividtimestamp = 0,
  lastovidtimestamp = 0, lasteventseqn = 0, lasteventendseqn = 0, lasttxformat = 0, lastrxformat = 0, dtmfcount = 0,
  dtmfduration = 0, nat = 0, flags = 0, us = {sin_family = 2, sin_port = 24694, sin_addr = {s_addr = 0},
    sin_zero = "\000\000\000\000\000\000\000"}, them = {sin_family = 2, sin_port = 0, sin_addr = {s_addr = 0},
    sin_zero = "\000\000\000\000\000\000\000"}, rxcore = {tv_sec = 0, tv_usec = 0}, txcore = {tv_sec = 0, tv_usec = 0},
  dtmfmute = {tv_sec = 0, tv_usec = 0}, smoother = 0x0, ioid = 0x0, seqno = 56750, rxseqno = 0, sched = 0x8133890, io = 0x0,
  data = 0x0, callback = 0, current_RTP_PT = {{isAstFormat = 1, code = 4}, {isAstFormat = 0, code = 0}, {isAstFormat = 0,
      code = 0}, {isAstFormat = 1, code = 2}, {isAstFormat = 1, code = 1}, {isAstFormat = 1, code = 32}, {isAstFormat = 1,
      code = 32}, {isAstFormat = 1, code = 128}, {isAstFormat = 1, code = 8}, {isAstFormat = 0, code = 0}, {isAstFormat = 1,
      code = 64}, {isAstFormat = 1, code = 64}, {isAstFormat = 0, code = 0}, {isAstFormat = 0, code = 2}, {isAstFormat = 0,
      code = 0}, {isAstFormat = 0, code = 0}, {isAstFormat = 1, code = 32}, {isAstFormat = 1, code = 32}, {isAstFormat = 1,
      code = 256}, {isAstFormat = 0, code = 2}, {isAstFormat = 0, code = 0}, {isAstFormat = 0, code = 0}, {isAstFormat = 0,
      code = 0}, {isAstFormat = 0, code = 0}, {isAstFormat = 0, code = 0}, {isAstFormat = 0, code = 0}, {isAstFormat = 1,
      code = 65536}, {isAstFormat = 0, code = 0}, {isAstFormat = 0, code = 0}, {isAstFormat = 0, code = 0}, {
      isAstFormat = 0, code = 0}, {isAstFormat = 1, code = 262144}, {isAstFormat = 0, code = 0}, {isAstFormat = 0,
      code = 0}, {isAstFormat = 1, code = 524288}, {isAstFormat = 0, code = 0} <repeats 62 times>, {isAstFormat = 1,
      code = 1024}, {isAstFormat = 0, code = 0}, {isAstFormat = 0, code = 0}, {isAstFormat = 0, code = 0}, {isAstFormat = 0,
      code = 1}, {isAstFormat = 0, code = 0}, {isAstFormat = 1, code = 1048576}, {isAstFormat = 1, code = 2097152}, {
      isAstFormat = 0, code = 0}, {isAstFormat = 0, code = 0}, {isAstFormat = 0, code = 0}, {isAstFormat = 0, code = 0}, {
      isAstFormat = 0, code = 0}, {isAstFormat = 1, code = 512}, {isAstFormat = 1, code = 16}, {isAstFormat = 0, code = 0}, {
      isAstFormat = 0, code = 0}, {isAstFormat = 0, code = 0}, {isAstFormat = 0, code = 0}, {isAstFormat = 0, code = 0}, {
      isAstFormat = 0, code = 0}, {isAstFormat = 0, code = 0}, {isAstFormat = 0, code = 0}, {isAstFormat = 0, code = 0}, {
      isAstFormat = 0, code = 4}, {isAstFormat = 0, code = 0} <repeats 134 times>}, rtp_lookup_code_cache_isAstFormat = 0,
  rtp_lookup_code_cache_code = 1, rtp_lookup_code_cache_result = 101, rtcp = 0x2918}
(gdb) f 1
#1  0xb7c64b64 in __sip_destroy (p=0x8180d80, lockowner=1) at chan_sip.c:2104
2107    chan_sip.c: No such file or directory.
        in chan_sip.c
(gdb) p p
$3 = (struct sip_pvt *) 0x8180d80
(gdb) p *p
$4 = {lock = {__m_reserved = 8559592, __m_count = 8559592, __m_owner = 0x0, __m_kind = 1, __m_lock = {__status = 0,
      __spinlock = 0}}, method = 5, callid = "4bf6efb057203b8f2786fc337217c26a@192.168.2.1", '\0' <repeats 35 times>,
  randdata = '\0' <repeats 79 times>, prefs = {order = "\003\004\002", '\0' <repeats 28 times>}, ocseq = 102, icseq = 0,
  callgroup = 0, pickupgroup = 2, lastinvite = 102, flags = 12853763, timer_t1 = 500, sipoptions = 0, capability = 14,
  jointcapability = 14, peercapability = 0, prefcodec = 4, noncodeccapability = 1, callingpres = 0, authtries = 0,
  expiry = 0, branch = 542347870, tag = "as4b80909f", sessionid = 3919, sessionversion = 3919, sa = {sin_family = 2,
    sin_port = 1544, sin_addr = {s_addr = 520267968}, sin_zero = "\000\000\000\000\000\000\000"}, redirip = {sin_family = 0,
    sin_port = 0, sin_addr = {s_addr = 0}, sin_zero = "\000\000\000\000\000\000\000"}, vredirip = {sin_family = 0,
    sin_port = 0, sin_addr = {s_addr = 0}, sin_zero = "\000\000\000\000\000\000\000"}, redircodecs = 0, recv = {
    sin_family = 2, sin_port = 1544, sin_addr = {s_addr = 520267968}, sin_zero = "\000\000\000\000\000\000\000"}, ourip = {
    s_addr = 16951488}, owner = 0x0, exten = "11", '\0' <repeats 77 times>, refer_to = '\0' <repeats 79 times>,
  referred_by = '\0' <repeats 79 times>, refer_contact = '\0' <repeats 79 times>, refer_call = 0x0, route = 0x0,
  route_persistant = 0, from = '\0' <repeats 255 times>, useragent = '\0' <repeats 255 times>,
  context = "phones", '\0' <repeats 73 times>, subscribecontext = '\0' <repeats 79 times>,
  fromdomain = '\0' <repeats 63 times>, fromuser = "11", '\0' <repeats 77 times>,
  fromname = "Operator", '\0' <repeats 71 times>, tohost = "192.168.2.31", '\0' <repeats 51 times>,
  language = '\0' <repeats 19 times>, musicclass = "default", '\0' <repeats 12 times>, rdnis = '\0' <repeats 255 times>,
  theirtag = "5pbdjofywc", '\0' <repeats 245 times>, username = "12", '\0' <repeats 253 times>,
  peername = "12", '\0' <repeats 253 times>, authname = "12", '\0' <repeats 253 times>,
  uri = "sip:12@192.168.2.31:2054;line=jf3ccbys", '\0' <repeats 217 times>, okcontacturi = '\0' <repeats 255 times>,
  peersecret = "37412", '\0' <repeats 250 times>, peermd5secret = '\0' <repeats 255 times>, peerauth = 0x0,
  cid_num = '\0' <repeats 255 times>, cid_name = '\0' <repeats 255 times>,
  via = "SIP/2.0/UDP 192.168.2.1:5060;branch=z9hG4bK2053925e;rport", '\0' <repeats 198 times>,
  fullcontact = "sip:12@192.168.2.31:2054;line=jf3ccbys", '\0' <repeats 89 times>, accountcode = '\0' <repeats 19 times>,
  our_contact = "<sip:11@192.168.2.1>", '\0' <repeats 235 times>, rpid = 0x0, rpid_from = 0x0,
  realm = '\0' <repeats 63 times>, nonce = '\0' <repeats 255 times>, noncecount = 0, opaque = '\0' <repeats 255 times>,
  qop = '\0' <repeats 79 times>, domain = '\0' <repeats 63 times>, lastmsg = "Tx: ACK\000VITE", '\0' <repeats 243 times>,
  amaflags = 0, pendinginvite = 0, initreq = {rlPart1 = 0x81827d0 "INVITE",
    rlPart2 = 0x81827d7 "sip:12@192.168.2.31:2054;line=jf3ccbys", len = 783, headers = 13, method = 5, header = {
      0x81827d0 "INVITE", 0x8182807 "Via: SIP/2.0/UDP 192.168.2.1:5060;branch=z9hG4bK2053925e;rport",
      0x8182847 "From: \"Operator\" <sip:11@192.168.2.1>;tag=as4b80909f",
      0x818287d "To: <sip:12@192.168.2.31:2054;line=jf3ccbys>", 0x81828ab "Contact: <sip:11@192.168.2.1>",
      0x81828ca "Call-ID: 4bf6efb057203b8f2786fc337217c26a@192.168.2.1", 0x8182901 "CSeq: 102 INVITE",
      0x8182913 "User-Agent: Asterisk PBX", 0x818292b "Max-Forwards: 70", 0x818293d "Date: Wed, 04 Jan 2006 10:03:25 GMT",
      0x8182962 "Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY",
      0x81829a6 "Content-Type: application/sdp", 0x81829c5 "Content-Length: 259", 0x81829da "", 0x0 <repeats 50 times>},
    lines = 12, line = {0x81829dc "v=0", 0x81829e1 "o=root 3919 3919 IN IP4 192.168.2.1", 0x8182a06 "s=session",
      0x8182a11 "c=IN IP4 192.168.2.1", 0x8182a27 "t=0 0", 0x8182a2e "m=audio 30304 RTP/AVP 0 8 3 101",
      0x8182a4f "a=rtpmap:0 PCMU/8000", 0x8182a65 "a=rtpmap:8 PCMA/8000", 0x8182a7b "a=rtpmap:3 GSM/8000",
      0x8182a90 "a=rtpmap:101 telephone-event/8000", 0x8182ab3 "a=fmtp:101 0-16", 0x8182ac4 "a=silenceSupp:off - - - -",
      0x8182adf "", 0x0 <repeats 51 times>},
    data = "INVITE\000sip:12@192.168.2.31:2054;line=jf3ccbys\000SIP/2.0\000\000Via: SIP/2.0/UDP 192.168.2.1:5060;branch=z9hG4b---Type <return> to continue, or q <return> to quit---
K2053925e;rport\000\000From: \"Operator\" <sip:11@192.168.2.1>;tag=as4b80909f\000\000To: <sip:12@192.168.2.31:20"...,
    debug = 0, flags = 0}, maxtime = 0, initid = -1, autokillid = -1, lastrtprx = 1136369005, lastrtptx = 1136369005,
  rtptimeout = 300, rtpholdtimeout = 480, rtpkeepalive = 0, subscribed = NONE, stateid = -1, laststate = 0, dialogver = 0,
  vad = 0x0, peerpoke = 0x0, registry = 0x0, rtp = 0x8183838, vrtp = 0x8186150, packets = 0x0, history = 0x0,
  chanvars = 0x0, next = 0x81d1478, options = 0x81d6c40}
(gdb) f 3
#3  0x08056378 in ast_sched_runq (con=0x8133890) at sched.c:374
374     sched.c: No such file or directory.
        in sched.c
(gdb) p con
$8 = (struct sched_context *) 0x8133890
(gdb) p *con
$9 = {lock = {__m_reserved = 0, __m_count = 0, __m_owner = 0x0, __m_kind = 1, __m_lock = {__status = 0, __spinlock = 0}},
  eventcnt = 215, schedcnt = 22, schedq = 0x815b7d8, schedc = 0x81d6ce0, schedccnt = 7}