MapServ Crash (convex mirror related)

Core was generated by `./map-server_sql'.
Program terminated with signal 11, Segmentation fault.
#0  clif_bossmapinfo (fd=10, md=0xb39ce214, flag=1) at clif.c:12231
12231                           seconds = DIFF_TICK(timer_data->tick, gettick()) / 1000;
(gdb) bt full
#0  clif_bossmapinfo (fd=10, md=0xb39ce214, flag=1) at clif.c:12231
        timer_data = <value optimized out>
        seconds = <value optimized out>
        hours = <value optimized out>
#1  0x080960b0 in status_change_start (bl=0xe6ddac0, type=SC_BOSSMAPINFO, rate=10000, val1=0, val2=<value optimized out>,
    val3=<value optimized out>, val4=<value optimized out>, tick=<value optimized out>, flag=2) at status.c:5262
        sd = (struct map_session_data *) 0xe6ddac0
        sc = (struct status_change *) 0xe6ddd58
        sce = (struct status_change_entry *) 0x0
        status = (struct status_data *) 0xe6ddd08
        vd = (struct view_data *) 0xe6ddca4
        opt_flag = <value optimized out>
        calc_flag = 0
        undead_flag = 0
        boss_md = (struct mob_data *) 0xb39ce214
        types = {SC_AUTOGUARD, SC_DEFENDER, SC_REFLECTSHIELD, SC_ENDURE}
#2  0x080b5e63 in buildin_sc_start (st=0xb7f5e92c) at script.c:8292
        bl = (struct block_list *) 0xe6ddac0
        type = SC_BOSSMAPINFO
        tick = 600000
        val1 = 0
        val4 = <value optimized out>
#3  0x080b8926 in run_func (st=0xb7f5e92c) at script.c:2884
        i = <value optimized out>
        start_sp = 0
        end_sp = 5
        func = 0
        __FUNCTION__ = "run_func"
#4  0x080c3bce in run_script_main (st=0xb7f5e92c) at script.c:3089
        c = C_NOP
        cmdcount = 655355
        gotocount = 2048
        sd = (TBL_PC *) 0xe6ddac0
        bk_st = (struct script_state *) 0x0
Missing separate debuginfos, use: debuginfo-install e2fsprogs.i386 keyutils.i386 krb5.i386 libselinux.i386 mysql.i386
---Type <return> to continue, or q <return> to quit---
        bk_npcid = 0
        stack = (struct script_stack *) 0xb2c69fc4
        __FUNCTION__ = "run_script_main"
#5  0x08082e15 in pc_useitem (sd=0xe6ddac0, n=17) at pc.c:3225
        tick = 647764901
        amount = <value optimized out>
        script = (struct script_code *) 0xb6c8e7f4
#6  0x0806a1f4 in clif_parse_UseItem (fd=10, sd=0xe6ddac0) at clif.c:8752
        n = 17
#7  0x08065bbc in clif_parse (fd=10) at clif.c:12519
        cmd = 159
        packet_ver = 22
        packet_len = 14
        err = 128
        sd = (TBL_PC *) 0xe6ddac0
        pnum = 0
#8  0x081382f0 in do_sockets (next=50) at socket.c:743
        rfd = {__fds_bits = {1024, 0 <repeats 31 times>}}
        timeout = {tv_sec = 0, tv_usec = 45000}
        ret = 0
        i = 10
#9  0x08136d96 in main (argc=1, argv=0xbfddb384) at core.c:254
        next = 0
(gdb)