(gdb) bt full
#0  0xfeb2527c in memchr () from /lib/libc.so.1
No symbol table info available.
#1  0xfeb8040a in _ndoprnt () from /lib/libc.so.1
No symbol table info available.
#2  0xfeb83657 in vsnprintf () from /lib/libc.so.1
No symbol table info available.
#3  0x0811b12e in __ast_str_helper (buf=0x80474f8, max_len=0, append=0, fmt=0x814d2ad "%-20.20s  %-35.35s  %s\n", 
    ap=0x8047518 ".3\224ü") at utils.c:1668
        res = -57396425
        need = -20848640
        offset = 134509668
#4  0x0809508f in ast_cli (fd=1, fmt=0x814d2ad "%-20.20s  %-35.35s  %s\n") at cli.c:79
        __res = 0
        buf = (struct ast_str *) 0x8574cf0
#5  0x080d9c8a in handle_show_functions (e=0x0, cmd=115, a=0x80475d0) at pbx.c:2612
        acf = (struct ast_custom_function *) 0xfc954d20
        count_acf = 12
        like = 0
#6  0x0809925c in ast_cli_command (fd=1, s=0x81a0490 "core show functions") at cli.c:1888
        args = {0x8183d74 "¸\231\031\b½\231\031\bÂ\231\031\bÌ\231\031\b", 0x81a1920 "core", 0x81a1925 "show", 
  0x81a192a "functions", 0x0, 0x0, 0xfec1f5d0 "", 0xfec1e000 "<ë\021", 0xfec1f5dc "", 0x1000000 <Address 0x1000000 out of bounds>, 
  0x0, 0xfec1f5d0 "", 0xfec1e000 "<ë\021", 0x8047644 "dv\004\bu\022ºþÐõÁþ", 0xfeba0108 "\203Ä\004©", 0xfec1f5dc "", 0x0, 
  0xfec1f5d0 "", 0xfec1e000 "<ë\021", 0x0, 0x81a04a4 "", 
  0x8047664 "xv\004\b\021S´þÐõÁþP\230\031\b\200\207\031\b\230v\004\b,Z\022\b\200\207\031\b", 0xfeba1275 "\203Ä\b\205Àt\024PèÎb", 
  0xfec1f5d0 "", 0x0, 0x81a04a4 "", 0xfec1f5d0 "", 0xfec1e000 "<ë\021", 0xfec92a00 "", 
  0x8047678 "\230v\004\b,Z\022\b\200\207\031\b", 0xfeb45311 "\203Ä\004^[\213å]ÃU\213ìSè", 0xfec1f5d0 "", 0x8199850 "", 
  0x8198780 "Pßj\b \031\032\bP\230\031\b\230\207\031\b\021", 
  0x8047698 "¸v\004\b\021[\022\bP\230\031\b|w\004\b\200\207\031\bh\fÂþ|w\004\bÀ \032\b\030w\004\b?b\022\bP\230\031\b|w\004\b\220\004\032\b\004", 
  0x8125a2c "ÿN\030\203Ä\020\215eø[^ÉÃU\211åWVS\203ì\030\213]\b\213}\fj\020èžóÿ\211Æ\211C\020\203Ä\020\205Àt \203ì\fÿu\020è\036Áóÿ\211F\004\203Ä\020\203{\020", 0x8198780 "Pßj\b \031\032\bP\230\031\b\230\207\031\b\021", 0xfec1e000 "<ë\021", 
  0x804769c "\021[\022\bP\230\031\b|w\004\b\200\207\031\bh\fÂþ|w\004\bÀ \032\b\030w\004\b?b\022\bP\230\031\b|w\004\b\220\004\032\b\004", 0x8199850 "", 0x8199850 "", 0x804777c "e", 0x80476b8 "\030w\004\b?b\022\bP\230\031\b|w\004\b\220\004\032\b\004", 
  0x8125b11 "\203Ä\020\213C\030;C\024~\004\205À\177äº", 0x8199850 "", 0x804777c "e", 
  0x8198780 "Pßj\b \031\032\bP\230\031\b\230\207\031\b\021", 0xfec20c68 "", 0x804777c "e", 0x81a20c0 "P\230\031\be", 
  0x8047718 "¬|\004\b«¼\a\b\001", 0x812623f "\211Â\203Ä\020\203øÿ\017\204\017\002", 0x8199850 "", 0x804777c "e", 
  0x81a0490 "core show functions", 0x4 <Address 0x4 out of bounds>, 0xfec20c5c "", 0xfec1e000 "<ë\021", 
  0xa <Address 0xa out of bounds>, 0xfec20c5c "", 
  0x8047700 "\030w\004\b-Ö¸þ\\\fÂþ\220\004\032\b\204w\004\b¤\004\032\b¬|\004\b«¼\a\b\001", 0xfeba1275 "\203Ä\b\205Àt\024PèÎb", 
  0xfec20c5c "", 0x0, 0xfec20c5c ""}
        e = (struct ast_cli_entry *) 0x8183d74
        x = 3
        dup = 0x81a1920 "core"
        retval = 0x0
        a = {fd = 1, argc = 3, argv = 0x80475f4, line = 0x0, word = 0x0, pos = 0, n = 0}
#7  0x0807bcab in main (argc=134510468, argv=0x8047cd4) at asterisk.c:1517
        fd = 135922832
        title = "Asterisk Console on 'gull' (pid 18489)\000þ\024x\004\bïÙüþ\034\030ýþ5\027ýþ\030¸ÿþ\034x\004\bàx\004\bPx\004\b\214²ÿþ \005øþ \005øþ¨x\004\b\217Ñüþ\214²ÿþ\034\000\000\000Ð\002áþ \005øþ\001\034\000\000Y\031ýþ\030¸ÿþXx\004\b~\032ýþx\000ñþ\020\000\000\000\004\000\000\000\030\000ñþ³§üþ,\000ñþ¸x\004\b\b\000\000\000\000\000\000\000\002\000\000\000\030¸ÿþ\020\000\000\000è\017áþ\036Kþþ@\207°þz\001\000\000\030¸ÿþe\000_l"...
        dont_care = 26
        c = 0
        filename = "/root/.asterisk_history", '\0' <repeats 56 times>
        hostname = "gull", '\0' <repeats 251 times>
        tmp = "\033[1;37;40mAsterisk Ready.\n\033[0;37;40m\000{\004\bÐ{\004\b\f\000\000\000\214²ÿþXÝÿþ Zºþ<³ÿþ\030¸ÿþH{\004\bo\027ýþ\001\000\000"
        xarg = 0x0
---Type <return> to continue, or q <return> to quit---
        x = 115
        f = (FILE *) 0x81a0490
        sigs = {__sigbits = {544771, 0, 0, 0}}
        num = 20
        isroot = 1
        buf = 0x81a0490 "core show functions"
        runuser = 0x0
        rungroup = 0x0
        remotesock = 0x0
        __PRETTY_FUNCTION__ = "main"
        __FUNCTION__ = "main"
(gdb)