(gdb) bt
#0  0x008f1129 in __ast_pthread_mutex_unlock (
    filename=0x8f3ef4 "chan_local.c", lineno=597,
    func=0x8f4479 "local_hangup", mutex_name=0x8f4156 "&p->lock", t=0xb30968f0)
    at /dar/build/asterisk-1.4.26/include/asterisk/lock.h:504
#1  0x008f311c in local_hangup (ast=0xb3095160) at chan_local.c:597
#2  0x0808a050 in ast_hangup ()
#3  0x0035d8ed in hangupcalls (outgoing=0xb3087ee8, exception=0x0)
    at app_queue.c:1735
#4  0x00363b01 in try_calling (qe=0xb531abe0, options=0xb531ab8a "",
    announceoverride=0xb531ab8c "", url=0xb531ab8b "", tries=0xb531ad80,
    noption=0xb531ad7c, agi=0xb531ab90 "") at app_queue.c:3296
#5  0x00366b62 in queue_exec (chan=0x83f89e8, data=0xb531cf08)
    at app_queue.c:4086
#6  0x080d5555 in pbx_exec ()
#7  0x080d92db in pbx_extension_helper ()
#8  0x080da63a in ast_spawn_extension ()
#9  0x080daa9a in __ast_pbx_run ()
#10 0x080dbaab in pbx_thread ()
#11 0x08120aeb in dummy_start ()
#12 0x008b249b in start_thread () from /lib/libpthread.so.0
#13 0x0080942e in clone () from /lib/libc.so.6
(gdb) bt full
#0  0x008f1129 in __ast_pthread_mutex_unlock (
    filename=0x8f3ef4 "chan_local.c", lineno=597,
    func=0x8f4479 "local_hangup", mutex_name=0x8f4156 "&p->lock", t=0xb30968f0)
    at /dar/build/asterisk-1.4.26/include/asterisk/lock.h:504
        res = 0
        canlog = 0
        __PRETTY_FUNCTION__ = "__ast_pthread_mutex_unlock"
#1  0x008f311c in local_hangup (ast=0xb3095160) at chan_local.c:597
        p = (struct local_pvt *) 0xb30968f0
        isoutbound = 0
        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}
        ochan = (struct ast_channel *) 0x0
        glaredetect = 0
        res = 0
        __PRETTY_FUNCTION__ = "local_hangup"
#2  0x0808a050 in ast_hangup ()
No symbol table info available.
#3  0x0035d8ed in hangupcalls (outgoing=0xb3087ee8, exception=0x0)
    at app_queue.c:1735
        oo = (struct callattempt *) 0xb3088078

        __PRETTY_FUNCTION__ = "hangupcalls"
#4  0x00363b01 in try_calling (qe=0xb531abe0, options=0xb531ab8a "",
    announceoverride=0xb531ab8c "", url=0xb531ab8b "", tries=0xb531ad80,
    noption=0xb531ad7c, agi=0xb531ab90 "") at app_queue.c:3296
        cur = (struct member *) 0x0
        outgoing = (struct callattempt *) 0xb301e8b8
        to = 0
        oldexten = '\0' <repeats 79 times>
        oldcontext = '\0' <repeats 79 times>
        queuename = "default-customer-new-english", '\0' <repeats 232 times>
        peer = (struct ast_channel *) 0x0
        which = (struct ast_channel *) 0xb531aae8
        lpeer = (struct callattempt *) 0x0
        member = (struct member *) 0x0
        app = (struct ast_app *) 0x36b0f5
        res = 0
        bridge = 0
        numbusies = 0
        x = 11
        announce = 0x0
        digit = 0 '\0'
        callstart = 134786325
        now = 1245930861

        bridge_config = {features_caller = {flags = 4}, features_callee = {
    flags = 2}, start_time = {tv_sec = 0, tv_usec = 0}, nexteventts = {
    tv_sec = 0, tv_usec = 0}, partialfeature_timer = {tv_sec = 0,
    tv_usec = 0}, feature_timer = 0, timelimit = 0, play_warning = 0,
  warning_freq = 0, warning_sound = 0x0, end_sound = 0x0, start_sound = 0x0,
  fcustomertpass = 0, flags = 0, end_bridge_callback = 0,
  end_bridge_callback_data = 0x0, end_bridge_callback_data_fixup = 0}
        nondataquality = 1 '\001'
        agiexec = 0x0
        ret = 0
        monitorfilename = 0xb531aadc "\210#\n³\004"
        monitor_exec = 0x83628b4 "\002"
        monitor_options = 0xb531aae8 ""
        tmpid = "\bا1µ\221¶\b\b\224þ\024\bÑ\a\000\000â\030\025\b\227\r\025\b`\212?\bp$6\b \000\000\000\000\000\000\000\t\000\000\000 \n\025\b\224þ\024\bÐ?Ê\bð\222 \000\000\000\000\000\001\000\000\000\\\0247\000\213«1µ(õÏ\b8ª1µ{Ð\b\b\224þ\024\bÃ\t\000\000d\031\025\b\227\r\025\b`\212?\bÔ¬y\000\001\000\000\000\0000ñ·P\000\000\000ñB\213\000´(6\b\225s\213\000'f\000\000\225þ\024\bH¨1µ\214ò\021\b¬T\213\000ïþ\021\bX¨1µ\001\000\000\000'f\000\000\220û1µ\225þ\024\b!\n\025\bH¨1µÀX\213\000x¨1µñ\004\022"...
        tmpid2 = "\000 \000\000\000(\221S\b¤¦1µ¨Èy\000(\221S\b\000\000\000\000HB\000\000\002\000\000\000N\vy\000\001\000\000\000\002\000\000\000ñB\213\000ئ1µ\225s\213\000\\\0247\000\213«1µø¦1µ\214ò\021\b\002\000\000\000MD\f\b\b§1µ\214ò\021
\b¬T\213\000\000\033P\b\225þ\024\b\001\000\000\000¬T\213\000\000\033P\b(§1µfó\021\b¤á\027\b\204\000\000\000(§1µ\225s\213\000'f\000\000\000\033P\bH§1µ\214ò\021\b¬T\213\000\000\033P\b\230ª1µOc\f\b¤á\027\b\200\000\000\000\225þ\024\b!\n\025\bH§1µÀX\213\000x§1µñ\004\022"...
        meid = "\000è¢1µøõ\n\bhÂ\027\b¯\000\000\000\\Ô\024\bnÔ\024\b\200\203\027\b\024\001\000\000«XÏè\004\001\000\000\004\001\000\000ø?Ê\b\000\000\000\000\235@Ê\b\t\000\000\000\206\177\025\b|~\025\b\2031\a\b\232\225z\000\000\000\000\000\001\000\000\000tù \000Tµ,\b$£1µH¦1µT\r\v\b|~\025\b\030\002\000\000å\203\025\bÚ~\025\bhÂ\027\bD£1µH¦1µ\225s\213\000tù \000\213«1µ\230£1µ ÿ\000\000À\231?\bMD\f\b\000\000\000 ÇK\227A\000\000\000 @D¿A\000\000\000\000\000\000\020@wav\000\000\033P\bÉÿaHzc¡"...
        meid2 = "\000¬\2361µÿÿÿÿf\000\000\000-\203\025\b=\000\000\000\0000ñ·¼¤1µ\000\000\000\000À\204\207\000ÿÿÿÿ\225©y\000-\203\025\b;\000\000\000f\000\000\000ܤ1µ\000\000\000\000\0000ñ·ÿÿÿÿf\000\000\000-\203\025\b;\000\000\000ÿÿÿÿü¤1µ\000\000\000\000\001\000\000\000ÿÿÿÿ\000\000\000\000-\203\025\b=\000\000\000ô\177\207\000\034¥1µ\000\000\000\000\000\000\000\000ÿÿÿÿ\000\000\000\000-\203\025\b", '\0' <repeats 20 times>, " ò\021\b¬T\213\000ïþ\021\b\026^\201\000\001\000\000s!\000\000\000\000\000\000\000½º\025\b½º\025\bì\221\213\000\000\000\000\000\000"...
        mixmonargs = "\000t\000\000\000À\204\207\000´\2301µ\177¬y\000ÿÿÿÿØ\2301µnµy\000À\204\207\000\0000ñ·t\000\000\000ô\177\207\000ô\177\207\000\000\000\000\000Y\000\000\000\024\2311µl«y\000À\204\207\000ñB\213\000Y\000\000\000\225s\213\000'f\000\000½º\025\b(\2311µ\214ò\021\b¬T\213\000ïþ\021\bô\177\207\000\001\000\000\000'f\000\000\220û1µ½º\025\b½º\025\b(\2311µÀX\213\000X\2311µñ\004\022\b¬T\213\0
00(\b\000\000½º\025\b\001\000\000\000H\2311µ\220û1µ½º\025\b½º\025\bX\2311µÀX\213\000¸\2311µ2S\f\bÈá\027\b\033[1"...
        mixmonapp = (struct ast_app *) 0x0
        p = 0x36dec3 "are"
        vars = '\0' <repeats 105 times>, "SÕy", '\0' <repeats 17 times>, "õÈ\026\b\000\000\000\000\177\2311µô\177\207\000ôÈ\026\b\001\000\000\000X\2271µ1Bw\000|\2271µôÈ\026\b\001", '\0' <repeats 27 times>, "0\2271µ\000\000\000\000\000\000\000\000Ä\2261µ\037?w", '\0' <repeats 41 times>, "(\000\000\000\000\000\000\000\020\2301µ", '\0' <repeats 36 times>, "ÿÿÿÿóÈ\026\bßÈ\026\b\006\000\000\000\004", '\0' <repeats 15 times>, "\n\000\000\000Â\2261µ", '\0' <repeats 40 times>, " \2321µ\000\000\000\000õ\034\"³ô\177\207\000\r\2321d\a\000\000\000\000\000\000\0001B"...
        forwardsallowed = 1
        callcompletedinsl = 1
        memi = {c = 0x83bd2d8, flags = 0, bucket = 37, c_version = 12,
  obj = 0x0, version = 0}
        datastore = (struct ast_datastore *) 0xb30a2388
        transfer_ds = (struct ast_datastore *) 0x4
        __PRETTY_FUNCTION__ = "try_calling"
#5  0x00366b62 in queue_exec (chan=0x83f89e8, data=0xb531cf08)
    at app_queue.c:4086
        stat = 137601508
        makeannouncement = 1

        res = 0
        ringing = 0
        lu = (struct ast_module_user *) 0x858d358
        user_priority = 0x857e76b "0"
        max_penalty_str = 0x0
        prio = 0
        max_penalty = 0
        reason = QUEUE_UNKNOWN
        tries = 0
        noption = 0
        parse = 0xb531ab70 "default-customer-new-english"
        args = {argc = 6, argv = 0xb531ad64,
  queuename = 0xb531ab70 "default-customer-new-english", options = 0xb531ab88 "tH",
  url = 0xb531ab8b "", announceoverride = 0xb531ab8c "",
  queuetimeoutstr = 0xb531ab8d "60", agi = 0xb531ab90 ""}
        qe = {parent = 0x83bc910, moh = "default", '\0' <repeats 72 times>,
  announce = '\0' <repeats 79 times>,
  context = "default-aa-customerenglishqueuepatience1vmail", '\0' <repeats 39 times>, digits = '\0' <repeats 79 times>, valid_digits = 0, pos = 1, prio = 0,
  last_pos_said = 0, last_periodic_announce_time = 1245930815,
  last_periodic_announce_sound = 0, last_pos = 0, opos = 44, handled = 0,
  pending = 0, max_penalty = 0, start = 1245930815, expire = 1245930875,
  chan = 0x83f89e8, next = 0xb4e6abe0}

        __PRETTY_FUNCTION__ = "queue_exec"
#6  0x080d5555 in pbx_exec ()
No symbol table info available.
#7  0x080d92db in pbx_extension_helper ()
No symbol table info available.
#8  0x080da63a in ast_spawn_extension ()
No symbol table info available.
#9  0x080daa9a in __ast_pbx_run ()
No symbol table info available.
#10 0x080dbaab in pbx_thread ()
No symbol table info available.
#11 0x08120aeb in dummy_start ()
No symbol table info available.
#12 0x008b249b in start_thread () from /lib/libpthread.so.0
No symbol table info available.
#13 0x0080942e in clone () from /lib/libc.so.6
No symbol table info available.
(gdb) thread apply all bt

Thread 1 (process 26151):
#0  0x008f1129 in __ast_pthread_mutex_unlock (
    filename=0x8f3ef4 "chan_local.c", lineno=597,
    func=0x8f4479 "local_hangup", mutex_name=0x8f4156 "&p->lock", t=0xb30968f0)
    at /dar/build/asterisk-1.4.26/include/asterisk/lock.h:504
#1  0x008f311c in local_hangup (ast=0xb3095160) at chan_local.c:597
#2  0x0808a050 in ast_hangup ()
#3  0x0035d8ed in hangupcalls (outgoing=0xb3087ee8, exception=0x0)
    at app_queue.c:1735
#4  0x00363b01 in try_calling (qe=0xb531abe0, options=0xb531ab8a "",
    announceoverride=0xb531ab8c "", url=0xb531ab8b "", tries=0xb531ad80,
    noption=0xb531ad7c, agi=0xb531ab90 "") at app_queue.c:3296
#5  0x00366b62 in queue_exec (chan=0x83f89e8, data=0xb531cf08)
    at app_queue.c:4086
#6  0x080d5555 in pbx_exec ()
#7  0x080d92db in pbx_extension_helper ()
#8  0x080da63a in ast_spawn_extension ()
#9  0x080daa9a in __ast_pbx_run ()
#10 0x080dbaab in pbx_thread ()
#11 0x08120aeb in dummy_start ()
#12 0x008b249b in start_thread () from /lib/libpthread.so.0
#13 0x0080942e in clone () from /lib/libc.so.6