Core was generated by `/usr/sbin/asterisk -vvvg -c'.
Program terminated with signal 11, Segmentation fault.
#0  0xb7f6cfcd in pthread_mutex_lock () from /lib/libpthread.so.0
(gdb) bt full
#0  0xb7f6cfcd in pthread_mutex_lock () from /lib/libpthread.so.0
No symbol table info available.
#1  0x080c6610 in ast_rtp_lookup_code (rtp=0x10d9, isAstFormat=1, code=4)
    at /root/archive/asterisk-1.4.0/include/asterisk/lock.h:532
        pt = <value optimized out>
#2  0x080cb048 in bridge_p2p_rtp_write (rtp=0xb6b02558, bridged=0x10d9,
    rtpheader=0xb6b025dc, len=172, hdrlen=12) at rtp.c:1038
        res = <value optimized out>
        payload = 1
        bridged_payload = <value optimized out>
        __PRETTY_FUNCTION__ = "bridge_p2p_rtp_write"
#3  0x080cb3c5 in p2p_rtp_callback (id=0x81f2358, fd=60, events=1,
    cbdata=0xb6b02558) at rtp.c:2900
        res = 172
        sin = {sin_family = 2, sin_port = 62691, sin_addr = {
    s_addr = 3187779776}, sin_zero = "\000\000\000\000\000\000\000"}
        len = 16
        rtp = (struct ast_rtp *) 0x324d
        bridged = (struct ast_rtp *) 0x10d9
        __PRETTY_FUNCTION__ = "p2p_rtp_callback"
#4  0x080a2690 in ast_io_wait (ioc=0x81b5840, howlong=320) at io.c:279
        res = 3
        x = 1
---Type <return> to continue, or q <return> to quit---
        origcnt = 5
#5  0xb74a0d9d in do_monitor (data=0x0) at chan_sip.c:14858
        prev = <value optimized out>
        res = <value optimized out>
        sip = (struct sip_pvt *) 0x0
        t = 1180446338
        fastrestart = 0
        lastpeernum = -1
        curpeernum = 45
        reloading = 0
        __PRETTY_FUNCTION__ = "do_monitor"
#6  0x080ed780 in dummy_start (data=0x81b9c60) at utils.c:545
        _buffer = {__routine = 0x8069ad0 <ast_unregister_thread>,
  __arg = 0x20008, __canceltype = -1210193056, __prev = 0x0}
        ret = <value optimized out>
#7  0xb7f6bb51 in pthread_start_thread () from /lib/libpthread.so.0
No symbol table info available.
#8  0xb7da274a in clone () from /lib/libc.so.6
No symbol table info available.
(gdb)