(gdb) bt full
#0  0x00839b5c in _int_malloc () from /lib/libc.so.6
No symbol table info available.
#1  0x0083be97 in malloc () from /lib/libc.so.6
No symbol table info available.
#2  0x08089b96 in __ast_alloc_region (size=67, which=FUNC_CALLOC, file=0x2bb294 "res_config_mysql.c", lineno=532, func=0x2bb696 "realtime_multi_mysql", cache=0) at astmm.c:114
        reg = 0xb74d9148
        ptr = 0x0
        fence = 0x81d23e4
        hash = 135
        __PRETTY_FUNCTION__ = "__ast_alloc_region"
#3  0x08089b4f in __ast_calloc (nmemb=1, size=67, file=0x2bb294 "res_config_mysql.c", lineno=532, func=0x2bb696 "realtime_multi_mysql") at astmm.c:203
        ptr = 0x40
#4  0x080d1317 in _ast_variable_new (name=0x11befcd0 "stamp", value=0xb74d91d0 "2011-04-09 16:23:00", filename=0x2bb481 "", file=0x2bb294 "res_config_mysql.c",
    func=0x2bb696 "realtime_multi_mysql", lineno=532) at config.c:234
        variable = 0x841f87
        name_len = 6
        val_len = 20
        fn_len = 1
#5  0x002b2f7f in realtime_multi_mysql (database=0xb75129ec "asterisk", table=0xb75128ec "voicemail_users", ap=0xb7512b10 "") at res_config_mysql.c:532
        dbh = 0x8c1b890
        result = 0x11bdcd30
        row = 0x11cc9678
        fields = 0x11bef608
        numFields = 13
        i = 8
        sql = 0x11bc1a60
        buf = 0x11bc1860
        initfield = 0xb75127f0 "context"
        stringp = 0x0
        chunk = 0xb74d91d0 "2011-04-09 16:23:00"
        op = 0x2bb5c4 " ="
        newparam = 0x0
        newval = 0x11bc17c9 "default"
        var = 0x123a83f0
        cfg = 0x11bc1908
        cat = 0x123a7dc0
        __PRETTY_FUNCTION__ = "realtime_multi_mysql"
#6  0x080d756a in ast_load_realtime_multientry (family=0x5a7621 "voicemail") at config.c:2253
        eng = 0x2bec40
        db = "asterisk\000\t\000\000\b*Q\267\326\347\212\000\304\300\207\b\025\022\036\b\030*Q\267\326\347\212\000\200q#\b\220;Q\267\250*Q\267\277\034\022\b\200q#\b\000\000\000\000H*Q\267\037\371\031\b<\v\276\021(\t\000\000H*Q\267\305\021\022\b\304\300\207\b0\002\276\021\250*Q\267\t\000\000\000\020\v\037\b\024\022\036\b\000\000\000\000\262\035\036\b^\033\036\b\200q#\bt\273\207\b", '\000' <repeats 20 times>, "\t\000\000\000\020\v\037\b\024\022\036\b\000\000\000\000к\207\b\001\000\000\000\000\000\000\000\214\353Z\000\000\000\000\000\003\354\034\b\350*Q\267\261n\r\b\024\022\036\b\371\a\000\000\262\035\036\b^\033\036\b\200q#\b", '\000' <repeats 28 times>, "@\354+\000\220\311\207\b(+Q\267"
        table = "voicemail_users", '\000' <repeats 141 times>, ",*Q\267\000\000\000\000\070*Q\267\060*Q\267\064*Q\267<*Q\267", '\000' <repeats 12 times>"\305, y\226\000\220;Q\267\025\022\036\b'L\226\000\000\000\000\000\000\000\000\000\320\365\031\bC\025\000\000\364O\222\000\025\022\036\b\025\022\036\b\350)Q\267\326\347\212\000<\v\276\021\220;Q\267\030*Q\267"
        res = 0x0
        ap = 0xb7512b04 "3vZ"
        i = 1
---Type <return> to continue, or q <return> to quit---
#7  0x0059e817 in show_users_realtime (fd=22, context=0x11bc17c9 "default") at app_voicemail.c:10838
        cfg = 0xb7512bbc
        cat = 0x0
#8  0x0059ebca in handle_voicemail_show_users (e=0x5af580, cmd=-4, a=0xb7512cdc) at app_voicemail.c:10928
        vmu = 0x886c678
        context = 0x11bc17c9 "default"
        users_counter = 0
        __PRETTY_FUNCTION__ = "handle_voicemail_show_users"
#9  0x080d0e42 in ast_cli_command_full (uid=0, gid=0, fd=22, s=0xb7512e7c "voicemail show users for default ") at cli.c:2474
        args = {0x5af580 "\350\354\307\021\362\354\307\021\367\354\307\021", 0x11bc17b0 "voicemail", 0x11bc17ba "show", 0x11bc17bf "users", 0x11bc17c5 "for",
          0x11bc17c9 "default", 0x0 <repeats 59 times>}
        e = 0x5af580
        x = 5
        duplicate = 0x11bc17b0 "voicemail"
        tmp = "voicemail show users for default\000how users for de de", '\000' <repeats 12 times>
        retval = 0x0
        a = {fd = 22, argc = 5, argv = 0xb7512d44, line = 0x0, word = 0x0, pos = 0, n = 0}
        __PRETTY_FUNCTION__ = "ast_cli_command_full"
#10 0x080d0f90 in ast_cli_command_multiple_full (uid=0, gid=0, fd=22, size=34, s=0xb75130e4 "voicemail show users for default ") at cli.c:2497
        cmd = "voicemail show users for default \000how users for de\" \"de\"\000\000\000\000$<}\000\304'}\000\350Dmw\340\303O\000\000\000\000\000\000\000\000\000\005\000\000\000\237\003\000\000\250V\370\267\240U\371\267}=\005\b\224\307}\000l\311\004\b\001\000\000\000\300\317|\000\020\330|\000\330/Q\267\364/Q\267\367\251{\000l\311\004\b\330/Q\267\264\327|\000\003\000\000\000\250V\370\267\005\000\000\000\000\000\000\000\001\000\000\000\f\271\004\b\370/Q\267\264\327|\000\003\000\000\000\250V\370\267\005\000\000\000\000\000\000\000\001\000\000\000\344/Q\267\234\060Q\267\364O\222\000|/Q\267\344\060Q\267h0Q\267\364\003\203\000|/Q\267\004\060Q\267 0Q\267X\326|\000}=\005\b\034\060Q\267\377\001\000\000\001\200"...
        x = 33
        y = 34
        count = 0
#11 0x0807f022 in netconsole (vconsole=0x8262c60) at asterisk.c:1266
        con = 0x8262c60
        hostname = "localhost.localdomain", '\000' <repeats 42 times>
        tmp = "voicemail show users for default \000\000ow users for de\" \"de\"\000\000 mute silent\000\000\326\347\212\000\240_#\b\364/\227\000\310\061Q\267\277\034\022\b\240_#\b\003\000\000\000C\025\000\000\364O\222\000\345#\035\b\021\v\037\bh1Q\267\246\347\212\000\240_#\b\364/\227\000\310\061Q\267\t\000\000\000\020\v\037\b\344#\035\b_\000\000\000\000\000\000\000\250\001\276\021", '\000' <repeats 24 times>"\364, O\222\000\t\000\000\000\020\v\037\b\344#\035\b", '\000' <repeats 16 times>"\364, /\227\000u\336\034\b\021\v\037\b\b2Q\267a\233\203\000\344#\035\b\207\000\000\000\000%\035\bC$\035\b\240_#\b\000\000\000\000\214"...
        res = 34
        fds = {{fd = 22, events = 1, revents = 1}, {fd = 23, events = 1, revents = 0}}
        __PRETTY_FUNCTION__ = "netconsole"
#12 0x081a063d in dummy_start (data=0x11bd6448) at utils.c:973
        __cancel_buf = {__cancel_jmp_buf = {{__cancel_jmp_buf = {9908212, 0, -1219413104, -1219415112, -172538758, 1258058265}, __mask_was_saved = 0}}, __pad = {0xb7513470,
            0x0, 0x0, 0x0}}
        __cancel_routine = 0x807c9d5 <ast_unregister_thread>
        __cancel_arg = 0xb7513b90
        not_first_call = 0
        ret = 0x0
        a = {start_routine = 0x807edba <netconsole>, data = 0x8262c60, name = 0x11bd6ec8 "netconsole", ' ' <repeats 11 times>, "started at [ 1344] asterisk.c listener()"}
        lock_info = 0x11be0230
        mutex_attr = {__size = "\001\000\000", __align = 1}
        __PRETTY_FUNCTION__ = "dummy_start"
#13 0x00962832 in start_thread () from /lib/libpthread.so.0
No symbol table info available.
#14 0x008a1f6e in clone () from /lib/libc.so.6
No symbol table info available.