Core was generated by `/usr/sbin/asterisk -vvvvvvvvvvvvvvvg -c'.
Program terminated with signal 11, Segmentation fault.
#0  0xb744a407 in reqprep (req=0xb6ab602c, p=0xb68065f0, sipmethod=8, seqno=102, newbranch=1) at /root/archive/asterisk-1.4.0/include/asterisk/strings.h:35
35              return (!s || (*s == '\0'));
(gdb) bt full
#0  0xb744a407 in reqprep (req=0xb6ab602c, p=0xb68065f0, sipmethod=8, seqno=102, newbranch=1) at /root/archive/asterisk-1.4.0/include/asterisk/strings.h:35
        orig = (struct sip_request *) 0xb68068f4
        stripped = "\000\000\000\000\000\000\000\000¬ý\026\b", '\0' <repeats 28 times>, "ÿÿÿÿ+\000\000\000G£\022\b¤d«¶", '\0' <repeats 12 times>, "\001\000\000\000\000\000\000\000\000\000\000"
        tmp = "À£Í·¸d«¶", '\0' <repeats 24 times>, "ÿÿÿÿÈ\210«¶\000\000\000\000\000\000\000\000¤d«¶\037¦Í·¼¨!\b", '\0' <repeats 19 times>
        newto = "ÿÿÿÿ+\000\000\000\nv\022\b,c«¶\003", '\0' <repeats 15 times>, "Àd«¶\n\000\000\000'c«¶", '\0' <repeats 20 times>, "ÿÿÿÿO\000\000\000G£\022\blc«¶", '\0' <repeats 74 times>, " s", '\0' <repeats 36 times>, "omò·+\000\000\000\000\020Æ·D_«¶+rò·ô¯ò·\030ý\026\b+\000\000\000Á\031ò·\213>ò·Àý\026\bôOÛ·D_«¶ôOÛ·\030ý\026\b@e«¶"
        c = 0xf9960efb <Address 0xf9960efb out of bounds>
        ot = <value optimized out>
        of = <value optimized out>
        is_strict = 1
        __PRETTY_FUNCTION__ = "reqprep"
#1  0xb744b866 in transmit_request_with_auth (p=0xb68065f0, sipmethod=-1233105339, seqno=0, reliable=XMIT_RELIABLE, newbranch=1) at chan_sip.c:7424
        resp = {rlPart1 = 0x0, rlPart2 = 0x0, len = 0, headers = 0, method = 0, lines = 0, flags = 0, header = {0x0 <repeats 64 times>}, line = {0x0 <repeats 64 times>},
  data = '\0' <repeats 4095 times>, sdp_start = 0, sdp_end = 0}
        __PRETTY_FUNCTION__ = "transmit_request_with_auth"
#2  0xb7461a1f in sip_hangup (ast=0xb68030b8) at chan_sip.c:3364
        audioqos = 0xb6802f90 "ssrc=378632169;themssrc=0;lp=0;rxjitter=0.000000;rxcount=0;txjitter=0.049667;txcount=0;rlp=0;rtt=0.000000"
        videoqos = 0xb747f8a2 ""
        p = (struct sip_pvt *) 0xb68065f0
        needcancel = 0
        __PRETTY_FUNCTION__ = "sip_hangup"
#3  0x0808021d in ast_hangup (chan=0xb68030b8) at channel.c:1608
        res = <value optimized out>
        __PRETTY_FUNCTION__ = "ast_hangup"
#4  0x080c244f in __ast_pbx_run (c=0xb68030b8) at pbx.c:2496
        __p = <value optimized out>
        found = 0
        res = -1
        error = <value optimized out>
        __PRETTY_FUNCTION__ = "__ast_pbx_run"
#5  0x080c2e7e in pbx_thread (data=0xb68030b8) at pbx.c:2556
No locals.
#6  0x080ed780 in dummy_start (data=0xb6804e68) at utils.c:545
        _buffer = {__routine = 0x8069ad0 <ast_unregister_thread>, __arg = 0x213801e, __canceltype = -1210492064, __prev = 0x0}
        ret = <value optimized out>
#7  0xb7f22b51 in pthread_start_thread () from /lib/libpthread.so.0
No symbol table info available.
#8  0xb7d5974a in clone () from /lib/libc.so.6
No symbol table info available.