(gdb) bt full
#0  0xb766a981 in close_mailbox (vms=0xb6ec3788, vmu=0xb6ec3284)
    at app_voicemail.c:4826
        x = 0
        __PRETTY_FUNCTION__ = "close_mailbox"
#1  0xb7671840 in vm_execmain (chan=0x8224af0, data=0xb6eca008)
    at app_voicemail.c:6733
        res = 0
        cmd = 0
        valid = 0
        u = (struct ast_module_user *) 0x82257c8
        prefixstr = '\0' <repeats 79 times>
        ext_context = '\0' <repeats 255 times>
        box = -1226015176
        useadsi = 0
        skipuser = 1
        vms = {curbox = '\0' <repeats 79 times>,
  username = "2400", '\0' <repeats 75 times>,
  curdir = '\0' <repeats 4095 times>, vmbox = '\0' <repeats 4095 times>,
  fn = '\0' <repeats 4095 times>, fn2 = '\0' <repeats 4095 times>,
  deleted = 0x0, heard = 0x0, curmsg = -1, lastmsg = 0, newmessages = 2,
  oldmessages = 0, starting = 0, repeats = 0, updated = 2, msgArray = {
    0 <repeats 256 times>}, mailstream = 0x82318e8, vmArrayIndex = 0,
  imapuser = '\0' <repeats 79 times>, interactive = 1, quota_limit = 0,
  quota_usage = 0, persist_vms = 0x8235700}
        vmu = (struct ast_vm_user *) 0xb6ec3284
        vmus = {context = "CapPBX", '\0' <repeats 73 times>,
  mailbox = "2400", '\0' <repeats 75 times>,
  password = "4321", '\0' <repeats 75 times>,
  fullname = "John Doe", '\0' <repeats 71 times>,
  email = '\0' <repeats 79 times>, pager = '\0' <repeats 79 times>,
  serveremail = '\0' <repeats 79 times>, mailcmd = '\0' <repeats 159 times>,
  language = '\0' <repeats 19 times>, zonetag = '\0' <repeats 79 times>,
  callback = '\0' <repeats 79 times>, dialout = '\0' <repeats 79 times>,
  uniqueid = '\0' <repeats 19 times>, exit = '\0' <repeats 79 times>,
  attachfmt = '\0' <repeats 19 times>, flags = 18488, saydurationm = 2,
  maxmsg = 100, imapuser = "jdoe", '\0' <repeats 75 times>,
  imappassword = '\0' <repeats 79 times>, volgain = 0, list = {next = 0x0}}
        context = 0xb6ec31c5 "CapPBX"
        silentexit = 0
        flags = {flags = 0}
        record_gain = 0 '\0'
        play_auto = 0
        play_folder = 0
        deleted = 0
        __PRETTY_FUNCTION__ = "vm_execmain"
#2  0x080b66b4 in pbx_exec (c=0x8224af0, app=0x81d5570, data=0xb6eca008)
    at pbx.c:532
        res = 8191
        saved_c_appl = 0x0
        saved_c_data = 0x0
#3  0x080b9afa in pbx_extension_helper (c=0x8224af0, con=0x0,
    context=0x8224c70 "sip-internal", exten=0x8224cc0 "*98", priority=1,
    label=0x0, callerid=0x82257f0 "2400", action=E_SPAWN) at pbx.c:1833
        e = (struct ast_exten *) 0x821c888
        app = (struct ast_app *) 0x81d5570
        res = 8195840
        q = {incstack = {0x0 <repeats 128 times>}, stacklen = 0, status = 5,
  swo = 0x0, data = 0x0, foundcontext = 0x8224c70 "sip-internal"}
        passdata = "2400@CapPBX", '\0' <repeats 8180 times>
        matching_action = 0
        __PRETTY_FUNCTION__ = "pbx_extension_helper"
#4  0x080babc8 in ast_spawn_extension (c=0x8224af0,
    context=0x8224c70 "sip-internal", exten=0x8224cc0 "*98", priority=1,
    callerid=0x82257f0 "2400") at pbx.c:2288
No locals.
#5  0x080bb098 in __ast_pbx_run (c=0x8224af0) at pbx.c:2388
        dst_exten = "´UÚ·\000\000\000\000h\000\000\000\000\017}\000ÀÃì¶ë\230Û·ÜÂì¶DÃì¶TyηÜÂì¶DÃ춬Ãì¶\000\000\000\000\027@ò·ìÃì¶\000\000\000\000ôïÚ·À\004Û·`U\"\b\030Ãì¶rvηÀ\004Û·`U\"\b\020\000\000\000È\004Û·bÃì¶\030Äì¶\205k\207·`U\"\b/\000\000\000\003¾\v\b\000\000\000\000\000\000\000\000ô¿ò·ð1ò·\000\000\000\000\000\000\000\000\001oη\000\000\000\000Ei\207·ÀVη2500\f\000\000\000273\0000\000ì¶ÄÃì¶\021\000\000\000ôïÚ·À\004Û·\0017\000\000"...
        pos = 0
        digit = 0
        found = 1
        res = 0
        autoloopflag = 0
        error = 0
        __PRETTY_FUNCTION__ = "__ast_pbx_run"
#6  0x080bbdf2 in pbx_thread (data=0x8224af0) at pbx.c:2601
        c = (struct ast_channel *) 0x8224af0
#7  0x080f5741 in dummy_start (data=0x82258c0) at utils.c:545
        _buffer = {__routine = 0x806870f <ast_unregister_thread>,
  __arg = 0xb6eccbb0, __canceltype = -1210525442, __prev = 0x0}
        ret = (void *) 0xb6ecc468
        a = {start_routine = 0x80bbddb <pbx_thread>, data = 0x8224af0,
  name = 0x81e09c0 "pbx_thread", ' ' <repeats 11 times>, "started at [ 2625] pbx.c ast_pbx_start()"}
#8  0xb7f22240 in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
No symbol table info available.
#9  0xb7d4d3de in clone () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
(gdb)