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This GDB was configured as "x86_64-unknown-linux-gnu"...
Core was generated by `./ircd'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /lib/libcrypt.so.1...done.
Loaded symbols for /lib/libcrypt.so.1
Reading symbols from /lib/tls/libc.so.6...done.
Loaded symbols for /lib/tls/libc.so.6
Reading symbols from /lib64/ld-linux-x86-64.so.2...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2
#0  my_strnlen (str=0x60400 <Address 0x60400 out of bounds>, maxlen=-1)
    at ircd_snprintf.c:1511
1511        len++;
(gdb) bt
#0  my_strnlen (str=0x60400 <Address 0x60400 out of bounds>, maxlen=-1)
    at ircd_snprintf.c:1511
#1  0x0000000000418d77 in doprintf (dest=0x6c7380, buf_p=0x7fff9489bd40,
    fmt=0x45c379 "s (%s@%s) is now an IRC Operator (%s) on oline %s",
    vp=0x7fff9489bf78) at ircd_snprintf.c:2115
#2  0x0000000000419da0 in doprintf (dest=0x6c7380, buf_p=0x7fff9489bdf0,
    fmt=0x461cf0 "v", vp=0x7fff9489be80) at ircd_snprintf.c:2006
#3  0x000000000041a285 in ircd_vsnprintf (dest=0x586320,
    buf=0xffffffff <Address 0xffffffff out of bounds>,
    buf_len=140735685443776, format=0x0, args=0xffff03e8)
    at ircd_snprintf.c:2174
#4  0x0000000000437478 in msgq_vmake (dest=0x6c7380,
    format=0x461ce4 "%C SNO %d :%v", vl=0x7fff9489be80) at msgq.c:376
#5  0x00000000004376d6 in msgq_make (dest=0x60400,
    format=0xffffffff <Address 0xffffffff out of bounds>) at msgq.c:406
#6  0x0000000000448d69 in vsendto_allops_butserv (one=0x0, from=0x6c7380,
    mask=1, pattern=0x4000000 <Address 0x4000000 out of bounds>, vl=0x4300000)
    at send.c:910
#7  0x0000000000448e5b in sendto_allops (from=0x60400, mask=4294967295,
    pattern=0x4000000 <Address 0x4000000 out of bounds>) at send.c:862
#8  0x000000000042b28e in m_oper (cptr=0x81e160, sptr=0x81e160,
    parc=-1802911552, parv=0x6b6620) at m_oper.c:190
#9  0x0000000000439e6a in client_dopacket (cptr=0x81e160, length=17)
---Type <return> to continue, or q <return> to quit---q
 at packet.cQuit