(gdb) bt full
#0  0x0056cb5c in _int_malloc () from /lib/libc.so.6
No symbol table info available.
#1  0x0056ebaa in calloc () from /lib/libc.so.6
No symbol table info available.
#2  0x0819b1b7 in _ast_calloc (num=1, len=51, file=0x81d7914 "config.c", lineno=236, func=0x81d793d "ast_variable_new")
    at /usr/src/asterisk/include/asterisk/utils.h:495
        p = 0xfc71be
        __PRETTY_FUNCTION__ = "_ast_calloc"
#3  0x080cc8a7 in ast_variable_new (name=0xb5e2578 "saycid", value=0xb77e41a0 "no", filename=0xfc71bd "") at config.c:236
        variable = 0x574e27
        name_len = 7
        val_len = 3
        fn_len = 1
        __PRETTY_FUNCTION__ = "ast_variable_new"
#4  0x00fbee30 in realtime_multi_mysql (database=0xb781d9ec "asterisk", table=0xb781d8ec "voicemail_users", ap=0xb781db10 "")
    at res_config_mysql.c:532
        dbh = 0x9fece78
        result = 0xb5ea230
        row = 0x11b95d38
        fields = 0xb5e1ec8
        numFields = 12
        i = 9
        sql = 0x11b88f90
        buf = 0xa103688
        initfield = 0xb781d7f0 "context"
        stringp = 0x0
        chunk = 0xb77e41a0 "no"
        op = 0xfc7300 " ="
        newparam = 0x0
        newval = 0xb5df759 "default"
        var = 0x11c1a4d0
        cfg = 0x11b87bf8
        cat = 0x11c1a270
        __PRETTY_FUNCTION__ = "realtime_multi_mysql"
#5  0x080d2756 in ast_load_realtime_multientry (family=0x9af039 "voicemail") at config.c:2252
        eng = 0xfca960
        db = "asterisk\000\t\000\000\bÚ\267v\026^\000\304\354\370\t\025y\035\b\030Ú\267v\026^\000`\200 \b\220ë·\250Ú\267\301\001\022\b`\200 \b\000\000\000\000HÚ\267\327\311\031\bÜ\270\021(\t\000\000HÚ\267\337\366\021\b\304\354\370\t\320~\270\021---Type---Type <return> to continue, or q <return> to quit---
\250Ú\267\t\000\000\000\ai\036\b\024y\035\b\000\000\000\000\246\203\035\bR\201\035\b`\200 \bt\347\370\t", '\000' <repeats 20 times>, "\t\000\000\000\ai\036\b\024y\035\b\000\000\000\000\320\346\370\t\001\000\000\000\000\000\000\000\254e\233\000\000\000\000\000\213`\034\b\350Ú\267\265 \r\b\024y\035\b\370\a\000\000\246\203\035\bR\201\035\b`\200 \b", '\000' <repeats 28 times>, "`\251\374\000\310\363\370\t(Û\267"
        table = "voicemail_users", '\000' <repeats 141 times>, ",Ú\267\000\000\000\000\070Ú\267\060Ú\267\064Ú\267<Ú\267", '\000' <repeats 12 times>"\305, \351f\000\220ë·\025y\035\b'\274f\000\000\000\000\000\000\000\000\000\210\306\031\b%+\000\000\364oe\000\025y\035\b\025y\035\b\350Ù\267v\026^\000Ü\270\021\220ë·\030Ú\267"
        res = 0x0
        ap = 0xb781db04 "K", <incomplete sequence \360\232>
        i = 1
#6  0x009a63ac in show_users_realtime (fd=18, context=0xb5df759 "default") at app_voicemail.c:10885
        cfg = 0xb781dbbc
        cat = 0x0
#7  0x009a675f in handle_voicemail_show_users (e=0x9b6f80, cmd=-4, a=0xb781dcdc) at app_voicemail.c:10975
        vmu = 0x9f80a40
        context = 0xb5df759 "default"
        users_counter = 0
        __PRETTY_FUNCTION__ = "handle_voicemail_show_users"
#8  0x080cc427 in ast_cli_command_full (uid=0, gid=0, fd=18, s=0xb781de7c "voicemail show users for default") at cli.c:2488
        args = {0x9b6f80 "\210&\230\021\222&\230\021\227&\230\021", 0xb5df740 "voicemail", 0xb5df74a "show",
          0xb5df74f "users", 0xb5df755 "for", 0xb5df759 "default", 0x0 <repeats 59 times>}
        e = 0x9b6f80
        x = 5
        duplicate = 0xb5df740 "voicemail"
        tmp = "voicemail show users for default", '\000' <repeats 32 times>
        retval = 0x0
        a = {fd = 18, argc = 5, argv = 0xb781dd44, line = 0x0, word = 0x0, pos = 0, n = 0}
        __PRETTY_FUNCTION__ = "ast_cli_command_full"
#9  0x080cc55d in ast_cli_command_multiple_full (uid=0, gid=0, fd=18, size=33,
    s=0xb781e0e4 "voicemail show users for default") at cli.c:2511
        cmd = "voicemail show users for default\000Sx\000\354Þ\267W\000\000\000\230\002\000\000\000\000\000\000\344\026x\000\224\260w\000\001\000\000\000\000\000\000\061\060\071\071\071\340Sx\000HHx\000\344\026x\000\260Ex", '\000' <repeats 13 times>, "bDY\000`\330\\\000\344â·7\337\201\267\b\000\000\000\260ILinux", '\000' <repeats 37 times>, "4\204V\000\000\000\000\000\000\000\000\000\364oe\000\000\000\000\000\000\000\000\000\335\226V\000|\337\201\267\344\340\201\267\343â·\234\340\201\267\364oe\000|\337\201\267\344\340\201\267h\340\201\267\364\063V\000|\337\201\267h`\034\b\244\340\201\267\344\340\201\267\000\000\000\000\034\340\201\267\377\001\000\000\001\200\255\373\344\340\201\267\344\340\201\267\344\340\201\267\344\340\201\267\004\341\201\267\343â·\344\340\201\267\343â·", '\000' <repeats 28 times>, "SMP \000\000\000 \000\000\000\000\062\071 12"...
        x = 32
---Type <return> to continue, or q <return> to quit---
        y = 33
        count = 0
#10 0x0807dfba in netconsole (vconsole=0x82311c0) at asterisk.c:1270
        con = 0x82311c0
        hostname = "eat-pbx", '\000' <repeats 56 times>
        tmp = "voicemail show users for default\000\000t debug atleast 0\000logger mute silent\000\000\000\000\000\000\060\375\020\n@\t\000\000\303\341\201\267p\204e\000\000\000\000\000p\201e\000\000\000\000\000@\201e\000(\t\000\000@\201e\000$\000\000\000\004", '\000' <repeats 15 times>, "1\t\000\000p\201e\000\003\000\000\000\000\000\000\000\002", '\000' <repeats 43 times>, "_\000\000\000\000\000\000\000\310~\270\021", '\000' <repeats 24 times>"\364, oe\000@\201e\000\bi\036\b\320~\270\021\267\354V\000\320~\270\021\000\000\000\000,\t\000\000@\201e\000\220\021\301\021(\t"...
        res = 33
        fds = {{fd = 18, events = 1, revents = 1}, {fd = 19, events = 1, revents = 0}}
        __PRETTY_FUNCTION__ = "netconsole"
#11 0x0819d64d in dummy_start (data=0xa10fbf8) at utils.c:1010
        __cancel_buf = {__cancel_jmp_buf = {{__cancel_jmp_buf = {6791156, 0, -1216222320, -1216224328, 1563963108,
                -492824337}, __mask_was_saved = 0}}, __pad = {0xb781e470, 0x0, 0x0, 0x0}}
        __cancel_routine = 0x807b9c0 <ast_unregister_thread>
        __cancel_arg = 0xb781eb90
        not_first_call = 0
        ret = 0x0
        a = {start_routine = 0x807dd52 <netconsole>, data = 0x82311c0,
          name = 0x11b87bb0 "netconsole", ' ' <repeats 11 times>, "started at [ 1348] asterisk.c listener()"}
        lock_info = 0x11b87ed0
        mutex_attr = {__size = "\001\000\000", __align = 1}
#12 0x00669832 in start_thread () from /lib/libpthread.so.0
No symbol table info available.
#13 0x005d4e0e in clone () from /lib/libc.so.6
No symbol table info available.