./unreal backtrace
Core files available:
-rw------- 1 ircd ircd 59768832 Nov  3 17:07 core

=================== START HERE ======================
BACKTRACE:
Core was generated by `/home/ircd/Unreal3.2.10.1/src/ircd'.
Program terminated with signal 11, Segmentation fault.
#0  ircvsprintf (str=0x7292c9 "MOTD command.\r\n", format=0x476f7c " %s %s %s %s%s%s%s:%s", vl=0x7fff292a1d20) at ircsprintf.c:289
289                                     if ((*str = *p1))
#0  ircvsprintf (str=0x7292c9 "MOTD command.\r\n", format=0x476f7c " %s %s %s %s%s%s%s:%s", vl=0x7fff292a1d20) at ircsprintf.c:289
#1  0x000000000044968e in vsendto_one (to=0x1c8fe40, pattern=0x476f7a "%s %s %s %s %s%s%s%s:%s", vl=0x7fff292a1e18) at send.c:252
#2  0x000000000044b2a6 in sendto_one (to=0x7292a0, pattern=0x476f7a "%s %s %s %s %s%s%s%s:%s") at send.c:246
#3  0x000000000044bb3d in sendto_serv_butone_nickcmd (one=0x3114940, sptr=0x3114940, nick=<value optimized out>, hopcount=<value optimized out>, lastnick=<value optimized out>, username=<value optimized out>, realhost=0x32ab0a5 "server ip was here", server=0x0,
    svid=0x32ab078 "0", info=0x31149d8 "", umodes=0x7fd67e3a23c0 "+z", virthost=0x0) at send.c:2072
#4  0x00007fd67e178b26 in _register_user (cptr=0x3114940, sptr=0x3114940, nick=<value optimized out>, username=<value optimized out>, umode=<value optimized out>, virthost=<value optimized out>, ip=0x0) at m_nick.c:1170
#5  0x00007fd67e155c09 in m_nospoof (cptr=0x3114940, sptr=0x3114940, parc=<value optimized out>, parv=<value optimized out>) at m_pingpong.c:184
#6  0x0000000000427972 in parse (cptr=0x3114940, buffer=0x3114a6c "PONG", bufend=0xe <Address 0xe out of bounds>) at parse.c:451
#7  0x0000000000426c97 in dopacket (cptr=0x3114940, buffer=<value optimized out>, length=0) at packet.c:138
#8  0x0000000000414de7 in read_packet (cptr=0x3114940, doread=<value optimized out>) at s_bsd.c:1629
#9  0x0000000000417280 in read_message (delay=<value optimized out>, listp=<value optimized out>) at s_bsd.c:2146
#10 0x0000000000421c63 in main (argc=<value optimized out>, argv=<value optimized out>) at ircd.c:1848

#0  ircvsprintf (str=0x7292c9 "MOTD command.\r\n", format=0x476f7c " %s %s %s %s%s%s%s:%s", vl=0x7fff292a1d20) at ircsprintf.c:289
289                                     if ((*str = *p1))

0x73fa20 <backupbuf>:    "PONG :5E57BF9C"

#0  ircvsprintf (str=0x7292c9 "MOTD command.\r\n", format=0x476f7c " %s %s %s %s%s%s%s:%s", vl=0x7fff292a1d20) at ircsprintf.c:289
        p1 = 0x0
        c = <value optimized out>
#1  0x000000000044968e in vsendto_one (to=0x1c8fe40, pattern=0x476f7a "%s %s %s %s %s%s%s%s:%s", vl=0x7fff292a1e18) at send.c:252
No locals.
#2  0x000000000044b2a6 in sendto_one (to=0x7292a0, pattern=0x476f7a "%s %s %s %s %s%s%s%s:%s") at send.c:246
        vl = {{gp_offset = 48, fp_offset = 48, overflow_arg_area = 0x7fff292a1e18, reg_save_area = 0x7fff292a1d40}}
GCC: gcc version 4.4.5 (Debian 4.4.5-8)
UNAME: Linux <hostname> 3.2.13-grsec-xxxx-grs-ipv6-64 #1 SMP Thu Mar 29 09:48:59 UTC 2012 x86_64 GNU/Linux
UNREAL: Unreal3.2.10.1 build 3.2.10.1
CORE: -rw------- 1 ircd ircd 59768832 Nov  3 17:07 core