(gdb) bt full
#0  _int_malloc (av=0x7fda8c000020, bytes=354) at malloc.c:4404
        nb = 368
        idx = 23
        bin = <value optimized out>
        victim = 0x7fda8c002bf0
        size = 816
        victim_index = <value optimized out>
        remainder = <value optimized out>
        remainder_size = <value optimized out>
        block = <value optimized out>
        bit = <value optimized out>
        map = <value optimized out>
        fwd = 0x7fda8c000238
        bck = 0x40
        __PRETTY_FUNCTION__ = "_int_malloc"
#1  0x00007fdabea5ee74 in __libc_calloc (n=<value optimized out>, elem_size=<value optimized out>) at malloc.c:4041
        av = 0x7fda8c000020
        oldtop = 0x7fda8c144630
        bytes = 354
        csz = <value optimized out>
        oldtopsize = 31184
        mem = 0x7ba1df0
        clearsize = <value optimized out>
        nclears = <value optimized out>
        __PRETTY_FUNCTION__ = "__libc_calloc"
#2  0x000000000057ffba in _ast_calloc (num=1, len=354, file=0x5d4614 "frame.c", lineno=509, func=0x5d5b60 "ast_frdup") at /usr/src/asterisk_trunk/include/asterisk/utils.h:467
        p = 0x7b35140
        __PRETTY_FUNCTION__ = "_ast_calloc"
#3  0x00000000004d54b0 in ast_frdup (f=0x7ba1df8) at frame.c:509
        out = 0x0
        len = 354
        srclen = 9
        buf = 0x0
        frames = 0x7b35140
        __PRETTY_FUNCTION__ = "ast_frdup"
#4  0x00000000004d4fb7 in ast_frisolate (fr=0x7ba1df8) at frame.c:394
        out = 0xffffffff000b8470
        newdata = 0x7ba1f98
        __PRETTY_FUNCTION__ = "ast_frisolate"
#5  0x0000000000576acf in ast_trans_frameout (pvt=0x7ba1df0, datalen=0, samples=0) at translate.c:230
        f = 0x7ba1df8
#6  0x0000000000576af3 in default_frameout (pvt=0x7ba1df0) at translate.c:235
No locals.
#7  0x00000000005771e7 in ast_translate (path=0x7ba1df0, f=0x7fda8c0833e0, consume=0) at translate.c:338
        p = 0x7ba1df0
        out = 0x7fda8c0833e0
        delivery = {tv_sec = 1268846826, tv_usec = 754800}
        has_timing_info = 1
        ts = 517950091
---Type <return> to continue, or q <return> to quit---
        len = 20
        seqno = 32118
#8  0x000000000044cfb6 in audio_audiohook_write_list (chan=0x7b87fe8, audiohook_list=0x7b438a0, direction=AST_AUDIOHOOK_DIRECTION_READ, frame=0x7b851e8) at audiohook.c:685
        in_translate = 0x7b438a0
        out_translate = 0x7b438c0
        start_frame = 0x7b851e8
        middle_frame = 0x7fda8c0833e0
        end_frame = 0x7fda8c0833e0
        audiohook = 0x0
        samples = 160
        __PRETTY_FUNCTION__ = "audio_audiohook_write_list"
#9  0x000000000044d061 in ast_audiohook_write_list (chan=0x7b87fe8, audiohook_list=0x7b438a0, direction=AST_AUDIOHOOK_DIRECTION_READ, frame=0x7b851e8) at audiohook.c:714
No locals.
#10 0x000000000047570a in __ast_read (chan=0x7b87fe8, dropaudio=0) at channel.c:3489
        old_frame = 0x7b851e8
        readq_tail = 0x0
        f = 0x7b851e8
        blah = 0
        prestate = 6
        cause = 0
        __PRETTY_FUNCTION__ = "__ast_read"
#11 0x0000000000475d83 in ast_read (chan=0x7b87fe8) at channel.c:3580
No locals.
#12 0x00007fdaa960fe67 in conf_run (chan=0x7b87fe8, conf=0x7b4eff0, confflags=0x7fda91434460, optargs=0x7fda91434220) at app_meetme.c:2993
        dtmfstr = "\000"
        menu_was_active = 0
        user = 0x7b8f950
        usr = 0x0
        fd = 30
        dahdic = {chan = 100, confno = 1023, confmode = 772}
        dahdic_empty = {chan = 0, confno = 0, confmode = 0}
        f = 0x7fda8c0833e0
        c = 0x7b87fe8
        fr = {frametype = AST_FRAME_VOICE, subclass = {integer = 64, codec = 64}, datalen = 320, samples = 160, mallocd = 0, mallocd_hdr_len = 0, offset = 64, src = 0x0, data = {
            ptr = 0x7fda91433f00, uint32 = 2437103360, pad = "\000?C\221\332\177\000"}, delivery = {tv_sec = 0, tv_usec = 0}, frame_list = {next = 0x0}, flags = 0, ts = 0, len = 0, seqno = 0}
        outfd = -99999
        ms = -1
        nfds = 1
        res = 320
        retrydahdi = 1
        origfd = 27
        musiconhold = 0
        mohtempstopped = 0
        firstpass = 1
        lastmarked = 0
        currentmarked = 0
        ret = -1
        x = 1
        menu_active = 0
---Type <return> to continue, or q <return> to quit---
        talkreq_manager = 0
        using_pseudo = 1
        duration = 20
        hr = 32730
        min = -1857866712
        sec = 32730
        sent_event = 1
        checked = 0
        announcement_played = 0
        now = {tv_sec = 1268846826, tv_usec = 703730}
        dsp = 0x7ba4010
        agi_app = 0x0
        agifile = 0x0
        mod_speex = 0x7b35040 "\300P\263\a"
        agifiledefault = 0x7fdaa9621bc9 "conf-background.agi"
        tmpvar = 0xffffffffffffffff <Address 0xffffffffffffffff out of bounds>
        meetmesecs = '\000' <repeats 29 times>
        exitcontext = '\000' <repeats 79 times>
        recordingtmp = '\000' <repeats 79 times>
        members = "2\000\000\000\000\000\000\000\000"
        dtmf = 32730
        opt_waitmarked_timeout = 0
        timeout = 0
        bi = {txbufpolicy = 0, rxbufpolicy = 0, numbufs = 32, bufsize = 160, readbufs = 0, writebufs = 0}
        __buf = "\020\231C\221\332\177\000\000\066\002X\000\000\000\000\000H\020\000\000\000\000\000\000\220~\205\000\000\000\000\000H\020\000\000\000\000\000\000\340\340\270\a\000\000\000\000\020\231C\221\332\177\000\000\202\036X\000\000\000\000\000\240\377\210\377l\377|\377\220\377\250\377\360\377X\000\244\000\344\000$\001\064\001$\001\364\000\304\000\204\000 \000\330\377\260\377|\377L\377,\377,\377,\377,\377l\377\270\377\000\000P\000\244\000\324\000\344\000\344\000\304\000x\000 \000\310\377|\377L\377\034\377\f\377,\377l\377\240\377\340\377\030\000H\000P\000X\000`\000X\000X\000`\000p\000x\000h\000X\000P\000 \000\370\377\330\377\300\377\240\377\220\377\220\377\220\377\230\377\250\377\300\377\330\377\360\377\b\000\030\000 \000\070\000@\000@\000P\000X\000P\000\070\000\060\000\030\000\350\377\300\377\300\377\300\377\270\377\330\377\030\000@\000@\000@\000@\000\000\000\250\377l\377l\377\\\377\\\377\300\377 \000X\000\224\000\344\000\364\000\324\000\264\000\224\000H\000\350\377\240\377l\377,\377\f\377\f\377\034\377,\377l\377\260\377\360\377\060\000\204\000\304\000\344\000\024\001\064\001\024\001\344\000\244\000X\000\350\377l\377,\377\374\376\334\376\354\376<\377"...
        buf = 0x7fda91433f00 "\240\377\210\377l\377|\377\220\377\250\377\360\377X"
        exitkeys = 0x0
        calldurationlimit = 0
        timelimit = 0
        play_warning = 0
        warning_freq = 0
        warning_sound = 0x0
        end_sound = 0x0
        parse = 0x7fda91433228 "\340\063C\221\332\177"
        time_left_ms = 0
        nexteventts = {tv_sec = 0, tv_usec = 0}
        to = -1
        setusercount = 1
        confsilence = 0
        totalsilence = 0
        __PRETTY_FUNCTION__ = "conf_run"
        __FUNCTION__ = "conf_run"
#13 0x00007fdaa9615d1b in conf_exec (chan=0x7b87fe8, data=0x7fda91436cd0 "0987") at app_meetme.c:4055
        res = -1
---Type <return> to continue, or q <return> to quit---
        confno = "0987", '\000' <repeats 75 times>
        allowretry = 0
        retrycnt = 0
        cnf = 0x7b4eff0
        confflags = {flags = 0}
        config_flags = {flags = 0}
        dynamic = 0
        empty = 0
        empty_no_pin = 0
        always_prompt = 0
        notdata = 0x7fda91436cd0 "0987"
        info = 0x7fda914341f0 "0987"
        the_pin = '\000' <repeats 79 times>
        args = {argc = 1, argv = 0x7fda91434258, confno = 0x7fda914341f0 "0987", options = 0x0, pin = 0x0}
        optargs = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0}
        __PRETTY_FUNCTION__ = "conf_exec"
#14 0x000000000050f090 in pbx_exec (c=0x7b87fe8, app=0x7aac250, data=0x7fda91436cd0 "0987") at pbx.c:1395
        res = 1
        u = 0x7b354b0
        saved_c_appl = 0x0
        saved_c_data = 0x0
        __PRETTY_FUNCTION__ = "pbx_exec"
#15 0x00000000005199d3 in pbx_extension_helper (c=0x7b87fe8, con=0x0, context=0x7b88438 "local", exten=0x7b88488 "7890", priority=1, label=0x0, callerid=0x7b35c00 "snom", action=E_SPAWN, 
    found=0x7fda91438eac, combined_find_spawn=1) at pbx.c:4069
        e = 0x7fda8c0bdd70
        app = 0x7aac250
        res = 0
        q = {incstack = {0x0 <repeats 128 times>}, stacklen = 0, status = 5, swo = 0x0, data = 0x0, foundcontext = 0x7b88438 "local"}
        passdata = "0987", '\000' <repeats 5740 times>, "\020\212C\221\332\177\000\000\000\212C\221\332\177\000\000\f\000\000\000\000\000\000\000p\213C\221\332\177\000\000\026\000\\\000\000\000\000\000E\243\242\276\332\177\000\000\027\000\\", '\000' <repeats 13 times>, "\001", '\000' <repeats 31 times>"\360, \210C\221\332\177", '\000' <repeats 18 times>"\230, \211C\221\332\177\000\000x\211C\221\332\177\000\000\016\000\\\000\000\000\000\000\\\211C\221\332\177", '\000' <repeats 34 times>"\340, \204C\221\332\177\000\000\000\000\000\000\000\000\000\000ȈC\221\332\177\000\000\000\000\000\000\000\000\000\000P\211C\221\332\177\000\000\000\000\000\000\363\020\000\000\000\000\000\000\000\000\000\000\377\377\377\377\377\377\377\377", '\000' <repeats 32 times>, " ", '\000' <repeats 43 times>, "\001", '\000' <repeats 59 times>"\377, \377\377\377\000\000\000\000ȈC\221\332\177\000\000"...
        matching_action = 0
        __PRETTY_FUNCTION__ = "pbx_extension_helper"
#16 0x000000000051b3f3 in ast_spawn_extension (c=0x7b87fe8, context=0x7b88438 "local", exten=0x7b88488 "7890", priority=1, callerid=0x7b35c00 "snom", found=0x7fda91438eac, combined_find_spawn=1)
    at pbx.c:4549
No locals.
#17 0x000000000051bc2d in __ast_pbx_run (c=0x7b87fe8, args=0x0) at pbx.c:4643
        digit = 0
        invalid = 0
        timeout = 0
        dst_exten = "\360\216C\221\332\177\000\000\060\202\201\221\332\177\000\000\000\000\000\000\000\000\000\000\066\002X\000\000\000\000\000H\020\000\000\000\000\000\000\220~\205", '\000' <repeats 13 times>"\340, \340\270\a", '\000' <repeats 12 times>"\202, \036X\000\000\000\000\000\260`\202\000\000\000\000\000\220_\202\000\000\000\000\000\340\340\270\a\000\000\000\000\225\214C\000\000\000\000\000\260`\202", '\000' <repeats 13 times>, "ЏC\221\332\177\000\000(\230C\000\000\000\000\000ЏC\221\332\177\000\000\301\235C\000\000\000\000\000\260`\202\000\000\000\000\000\060\202\201\221\332\177\000\000\020\231C\221\332\177\000\000 \271[\000\000\000\000\000\003\000\000\000\207\001\000\000\064r[\000\000\000\000\000\303t[\000\000\000\000\000@\376Ծ\332\177\000\000>\000\000\000\000\000\000\000>\000\000\000\000\000\000\000\020\231C\221\332\177\000\000\000\000\000\000\000\000\000"
        pos = 0
        found = 1
---Type <return> to continue, or q <return> to quit---
        res = 0
        autoloopflag = 0
        error = 0
        __PRETTY_FUNCTION__ = "__ast_pbx_run"
#18 0x000000000051d421 in pbx_thread (data=0x7b87fe8) at pbx.c:4930
        c = 0x7b87fe8
#19 0x0000000000582791 in dummy_start (data=0x7b369e0) at utils.c:971
        __cancel_buf = {__cancel_jmp_buf = {{__cancel_jmp_buf = {0, 5468978091902922370, 140576720781872, 140576716724496, 0, 3, 5468978091925991042, -5453695673006395774}, __mask_was_saved = 0}}, 
          __pad = {0x7fda91439180, 0x0, 0x0, 0x0}}
        __cancel_routine = 0x43a474 <ast_unregister_thread>
        __cancel_arg = 0x7fda91439910
        not_first_call = 0
        ret = 0x0
        a = {start_routine = 0x51d3fc <pbx_thread>, data = 0x7b87fe8, name = 0x7b3e290 "pbx_thread", ' ' <repeats 11 times>, "started at [ 4951] pbx.c ast_pbx_start()"}
        lock_info = 0x7b8e0e0
        mutex_attr = {__size = "\001\000\000", __align = 1}
#20 0x00007fdabf74aa04 in start_thread (arg=<value optimized out>) at pthread_create.c:300
        __res = <value optimized out>
        pd = 0x7fda91439910
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140576716724496, -5453696290472563070, 140576720781872, 140576716724496, 0, 3, 5468978091905019522, 5469035669996203650}, mask_was_saved = 0}}, 
          priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <value optimized out>
        robust = <value optimized out>
#21 0x00007fdabeac480d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#22 0x0000000000000000 in ?? ()
No symbol table info available.