(gdb) bt full
#0  0x0805be46 in ast_queue_frame (chan=0x818cbb0, fin=0xbf1ff694) at channel.c:412
        f = (struct ast_frame *) 0x8199e10
        prev = (struct ast_frame *) 0x0
        cur = (struct ast_frame *) 0x818cbb0
        blah = 1
        qlen = 0
#1  0x080afbee in ast_dsp_process (chan=0x818cbb0, dsp=0x818c438, af=0xbf1ff694) at dsp.c:1462
        silence = 135842736
        res = 0
        x = 0
        shortdata = (short unsigned int *) 0xbf1fee3c
        odata = (
    unsigned char *) 0xbf1ff2d4 "ÙT_{\177qÁñÃ××õßXxFWß\\ÖÏóðGKMÛÚTtSËÄÒSÖTF~rJßËWQÞÎÞ×u^Ù\\ÕÜÇõöOJDß
ÊUJ[ÍÀÀYVS@tuußðÒØÑÂÊÜp]Ó]ÔXÜðóINCÄ÷RpCõôÀGW×\\IqLÍõWÓß÷õAsÖÒ^FGÙøÉKwYÃÊErTöôVYSÒXJKZÁÙÒÖÀÃÚuIÓUuwV"
        len = 135842736
        writeback = 0
#2  0x4047b117 in pipe_frame (p=0x81be2b8, f=0x818c438) at chan_capi.c:1218
        wfds = {fds_bits = {1073741824, 0 <repeats 31 times>}}
        written = 135842736
        tv = {tv_sec = 0, tv_usec = 10}
#3  0x4047b44b in pipe_msg (PLCI=257, CMSG=0x81417a0) at chan_capi.c:1865
        p = (struct capi_pipe *) 0x81be2b8
        CMSG2 = {ApplId = 1, Command = 134 '\206', Subcommand = 131 '\203', Messagenumber = 41763,
  adr = {adrController = 393473, adrPLCI = 393473, adrNCCI = 393473},
  AdditionalInfo = CAPI_COMPOSE, B1configuration = 0x0, B1protocol = 0, B2configuration = 0x0,
  B2protocol = 0, B3configuration = 0x0, B3protocol = 0, BC = 0x0, BChannelinformation = 0x0,
  BProtocol = CAPI_COMPOSE, CalledPartyNumber = 0x0, CalledPartySubaddress = 0x0,
  CallingPartyNumber = 0x0, CallingPartySubaddress = 0x0, CIPmask = 0, CIPmask2 = 0, CIPValue = 0,
  Class = 0, ConnectedNumber = 0x0, ConnectedSubaddress = 0x0, Data32 = 0, Data64 = 0,
  DataHandle = 121, DataLength = 0, FacilityConfirmationParameter = 0x0, Facilitydataarray = 0x0,
  FacilityIndicationParameter = 0x0, FacilityRequestParameter = 0x0,
  FacilityResponseParameters = 0x0, FacilitySelector = 0, Flags = 0, Function = 0, HLC = 0x0,
  Info = 0, InfoElement = 0x0, InfoMask = 0, InfoNumber = 0, Keypadfacility = 0x0, LLC = 0x0,
  ManuData = 0x0, ManuID = 0, NCPI = 0x0, Reason = 0, Reason_B3 = 0, Reject = 0,
  Useruserdata = 0x0, Data = 0x0, l = 14, p = 2, par = 0x40495fde "\003\031\001",
  m = 0x4049a720 "\016", buf = '\0' <repeats 179 times>}
        error = 135842736
        fr = {frametype = 2, subclass = 8, datalen = 160, samples = 160, mallocd = 0, offset = 64,
---Type <return> to continue, or q <return> to quit---
  src = 0x0, data = 0xbf1ff2d4, delivery = {tv_sec = 0, tv_usec = 0}, prev = 0x40236ff4,
  next = 0xbf1ff6d0}
        b3buf = "\000\000\000\000\000\0004R m\214Þ\fÀ\000\000\000\000\000\000\000\0004R Dªè\fÀ\000\0
00\000\000\000\000\000\000\032)P\"U\204\rÀ", '\0' <repeats 11 times>, "°½Ì\032@\000\000ÙT_{\177qÁñÃ×
×õßXxFWß\\ÖÏóðGKMÛÚTtSËÄÒSÖTF~rJßËWQÞÎÞ×u^Ù\\ÕÜÇõöOJDßÊUJ[ÍÀÀYVS@tuußðÒØÑÂÊÜp]Ó]ÔXÜðóINCÄ÷RpCõôÀGW×\
\IqLÍõWÓß÷õAsÖÒ^FGÙøÉKwYÃÊErTö"...
        j = 0
        b3len = 160
        dtmf = 86 'V'
        dtmflen = 0
#4  0x40480ad0 in capi_handle_msg (CMSG=0x101) at chan_capi.c:2214
        i = (struct ast_capi_pvt *) 0xbf1ffad4
        DNID = 0x0
        msn = 0x81417a0 "\001"
        CMSG2 = {ApplId = 0, Command = 0 '\0', Subcommand = 0 '\0', Messagenumber = 0, adr = {
    adrController = 0, adrPLCI = 0, adrNCCI = 0}, AdditionalInfo = CAPI_COMPOSE,
  B1configuration = 0x0, B1protocol = 0, B2configuration = 0x0, B2protocol = 0,
  B3configuration = 0x0, B3protocol = 0, BC = 0x0, BChannelinformation = 0x0,
  BProtocol = CAPI_COMPOSE, CalledPartyNumber = 0x0, CalledPartySubaddress = 0x0,
  CallingPartyNumber = 0x0, CallingPartySubaddress = 0x0, CIPmask = 0, CIPmask2 = 0, CIPValue = 0,
  Class = 0, ConnectedNumber = 0x0, ConnectedSubaddress = 0x0, Data32 = 0,
  Data64 = 9281074407088306264, DataHandle = 20468, DataLength = 16387,
  FacilityConfirmationParameter = 0xbf1ff99c "\003P",
  Facilitydataarray = 0xbf1ffa34 "Dú\037¿\020«\002@",
  FacilityIndicationParameter = 0x4002df88 "\213E\b\213\0169H`uî\201Ä\234",
  FacilityRequestParameter = 0xbf1ff99c "\003P",
  FacilityResponseParameters = 0x20 <Address 0x20 out of bounds>, FacilitySelector = 63900,
  Flags = 48927, Function = 2160918528, HLC = 0x8005003 <Address 0x8005003 out of bounds>,
  Info = 0, InfoElement = 0xbf1ffa54 " \027\024\b$\031\024\b\214ú\037¿\207QI@ \027\024\b\202",
  InfoMask = 1073930120, InfoNumber = 63932, Keypadfacility = 0x20 <Address 0x20 out of bounds>,
  LLC = 0xbf1ff9bc "\003P", ManuData = 0x0, ManuID = 134238211, NCPI = 0x0, Reason = 0,
  Reason_B3 = 0, Reject = 3, Useruserdata = 0x0, Data = 0x0, l = 1073931552, p = 1073931552,
  par = 0x40236ff4 "\034\215\021", m = 0x40236ff4 "\034\215\021",
  buf = "ôù\037¿0F\036@ð\200I@$ú\037¿¼ú\037¿l\023\035@\001\000\000\000P4I@\016\000\000\000$ú\037¿\00
0\000\000\000\000\000\000\000Ôú\037¿ð\200I@0«\002@ï3I@ôO\003@0«\002@¹ª\002@\235NI@Dú\037¿\020«\002@\
000\000\000\000\024\000\000\000\202\000\000\000D|\023\b\214ú\037¿ð\200I@ \027\024\b$\031\024\b\214ú\
037¿\207QI@ \027\024\b\202\000\000\000\000\000\000\000\r\000\000\000¶\000\000\000 \001\000\000y\000\
000\000ð\200I@\000\000\000\000\000\000\000\000¼ú\037¿°RI@ \027\024\b"}
        error = 135842736
---Type <return> to continue, or q <return> to quit---
        PLCI = 257
        NCCI = 135842736
        NPLAN = 0
        fds = {0, 0}
        controller = 0
        buffer = '\0' <repeats 79 times>
        p = (struct capi_pipe *) 0x81417a0
        flags = 135842736
#5  0x4047fbbd in do_monitor (data=0x0) at chan_capi.c:2244
        monCMSG = (_cmsg *) 0x81417a0
#6  0x4002c54e in pthread_start_thread () from /lib/libpthread.so.0
No symbol table info available.
#7  0x401d7b8a in clone () from /lib/libc.so.6
No symbol table info available.