(gdb) bt full
#0  0x00533dfd in set_pointer () from /usr/lib/asterisk/modules/format_mp3.so
No symbol table info available.
#1  0x0806a691 in ast_readframe (s=0x40) at file.c:554
        f = (struct ast_frame *) 0x88c90f0
        whennext = 0
#2  0x00871bb8 in moh_files_generator (chan=0x87e3ec8, data=0x886b2c0, len=160, samples=160) at res_musiconhold.c:229
        state = (struct moh_files_state *) 0x886b2c0
        res = 8867196
        __PRETTY_FUNCTION__ = "moh_files_generator"
#3  0x080639ca in ast_read (chan=0x87e3ec8) at channel.c:1659
        res = 143429872
        generate = (int (*)(struct ast_channel *, void *, int, int)) 0x40
        f = (struct ast_frame *) 0x88c4060
        blah = 15
        prestate = 6
        func = (int (*)(void *)) 0x88c4060
        data = (void *) 0x42ee4905
        res = 143429872
        null_frame = {frametype = 5, 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}
        __PRETTY_FUNCTION__ = "ast_read"
#4  0x08065425 in ast_safe_sleep (chan=0x87e3ec8, ms=6175) at channel.c:764
        f = (struct ast_frame *) 0x88c90f0
#5  0x008729d1 in moh0_exec (chan=0x87e3ec8, data=0x2710) at res_musiconhold.c:530
        __PRETTY_FUNCTION__ = "moh0_exec"
#6  0x0808cd98 in pbx_extension_helper (c=0x87e3ec8, con=0x0, context=0x87e4018 "from-sip", exten=0x87e410c "705", priority=2,
    label=0x0, callerid=0xb7b8f080 "classical", action=0) at pbx.c:553
        e = (struct ast_exten *) 0x8864c48
        sw = (struct ast_switch *) 0x0
        data = 0x0
        foundcontext = 0x88667a3 "common"
        newstack = 1
        res = 0
        status = 5
        incstack = {0x8862e58 "from-sip", 0x0, 0x0, 0x0, 0xc1cce4 "\201Ã\020c\f", 0x0, 0x0, 0xce2ff4 "<-Î",
  0xb7b910f0 "\001\200­û0\022¹·0\022¹·0\022¹·0\022¹·<\022¹·\177\022¹·0\022¹·\177\022¹·", 0xb7b910cc "Ü\021¹·6\205Á",
  0xc1dff1 "\211~\020\213U\024\211~\f\211~\004\205Òt6\213U\024\213}ð\211V\024\211V\b1Ò\211~\030\211\226\230",
  0xb7b910f0 "\001\200­û0\022¹·0\022¹·0\022¹·0\022¹·<\022¹·\177\022¹·0\022¹·\177\022¹·", 0xb7b91230 "\"Abby\" <602>", 0xb7b9127f "",
  0x0, 0xb7b9127f "", 0xce2ff4 "<-Î", 0x80f3a14 "\"%s\" <%s>", 0xb7b9120c "P±\206\bØ)\206\b", 0xb7b911dc "ø\021¹·\222\004À",
  0xc18536 "\213\215\fÿÿÿ\211Â9\2150ÿÿÿt\t\213µ(ÿÿÿÆ\006",
  0xb7b910f0 "\001\200­û0\022¹·0\022¹·0\022¹·0\022¹·<\022¹·\177\022¹·0\022¹·\177\022¹·", 0x80f3a14 "\"%s\" <%s>", 0xb7b91214 "",
  0xb7b91230 "\"Abby\" <602>", 0x0, 0xb7b91190 "",
  0xb7b910f0 "\001\200­û0\022¹·0\022¹·0\022¹·0\022¹·<\022¹·\177\022¹·0\022¹·\177\022¹·",
  0xfbad8001 <Address 0xfbad8001 out of bounds>, 0xb7b91230 "\"Abby\" <602>", 0xb7b91230 "\"Abby\" <602>",
  0xb7b91230 "\"Abby\" <602>", 0xb7b91230 "\"Abby\" <602>", 0xb7b9123c "", 0xb7b9127f "", 0xb7b91230 "\"Abby\" <602>", 0xb7b9127f "",
  0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xcd83f1 "corrupted double-linked list", 0xcd83f1 "corrupted double-linked list",
  0xcd83f1 "corrupted double-linked list", 0xcd83f1 "corrupted double-linked list", 0xffffffff <Address 0xffffffff out of bounds>,
  0x0, 0x0, 0x0, 0x0, 0x40 "", 0x18 "", 0xce4838 "", 0x0, 0xce4824 "", 0xce4828 "", 0xce4800 "", 0x0, 0x0, 0xce2a20 "", 0x0,
  0xce2ff4 "<-Î", 0xce4800 "", 0x0, 0xb7b9125c "",
  0xc20143 "éZþÿÿ\213\215\\ÿÿÿ9A\004ë\022\213\225\\ÿÿÿ\213r\b9F\004\211µ\\ÿÿÿwì\213\205\\ÿÿÿ\213p\fé\222þÿÿ\201}àÿ\001", 0x0, 0x0,
  0x0, 0x0, 0x0, 0x0, 0x881a748 "6", 0xc1fea4 "\201ÃP1\f", 0x0, 0x0, 0x0, 0xce4838 "", 0xce2ff4 "<-Î", 0xb7b91230 "\"Abby\" <602>",
---Type <return> to continue, or q <return> to quit---
  0x50 "", 0xb7b911f8 "xi\214\bì\024\n\b0\022¹·P",
  0xc00492 "\203Ä\020[]Ã\220\220\220\220\220\220\220\220U\211å\215M\020S\203ì\f\213U\f\211L$\b\213E\bè¸'ýÿ\201Ã;+\016",
  0xb7b91230 "\"Abby\" <602>", 0x50 "", 0x80f3a14 "\"%s\" <%s>", 0xb7b9120c "P±\206\bØ)\206\b", 0x87e3ec8 "SIP/602-bc49",
  0x88c6978 "\"Abby\" <602>", 0x80a14ec "éoýÿÿ\211T$\024¹\204l\017\bº)r\017\b\211L$\020¿[\002", 0xb7b91230 "\"Abby\" <602>", 0x50 "",
  0x80f3a14 "\"%s\" <%s>", 0x886b150 "Abby", 0x88629d8 "602", 0x0, 0x0, 0xce4800 "", 0x0, 0x0, 0x8 "", 0x88629d8 "602",
  0x62624122 <Address 0x62624122 out of bounds>, 0x3c202279 <Address 0x3c202279 out of bounds>,
  0x3e323036 <Address 0x3e323036 out of bounds>, 0x0 <repeats 11 times>, 0xc39656 "\211Ó=\001ðÿÿs\001Ãè)H\b",
  0x80a088a "\213L$\030\213t$\034\211\213\200\002", 0xb7b91288 "ÄHîB\002", 0x0, 0x0, 0x0}
        passdata = "classical", '\0' <repeats 8182 times>
        stacklen = 1
        tmp = "\033[1;36;40mMusicOnHold\033[0;37;40m", '\0' <repeats 48 times>
        tmp2 = "\033[1;35;40mSIP/602-bc49\033[0;37;40m", '\0' <repeats 47 times>
        tmp3 = "\033[1;35;40mclassical\033[0;37;40m", '\0' <repeats 8162 times>
        atmp = '\0' <repeats 79 times>
        atmp2 = '\0' <repeats 8291 times>
        __PRETTY_FUNCTION__ = "pbx_extension_helper"
#7  0x0808e086 in __ast_pbx_run (c=0x87e3ec8) at pbx.c:2149
        digit = 0
        exten = '\0' <repeats 255 times>
        pos = 0
        waittime = 2
        res = 0
        __PRETTY_FUNCTION__ = "__ast_pbx_run"
#8  0x0808fc7e in pbx_thread (data=0x87e3ec8) at pbx.c:2436
No locals.
#9  0x0065c341 in __pthread_initialize_minimal () from /lib/tls/libpthread.so.0
No symbol table info available.
#10 0x00c84fee in clone () from /lib/tls/libc.so.6
No symbol table info available.
(gdb)