panic: assertion "zmsg.start_rule == NULL" failed in ip_fw3_ctl_zero_entry at /usr/src/sys/net/ipfw3/ip_fw3.c:939
ip_fw3_ctl_zero_entry() at ip_fw3_ctl_zero_entry+0x1c9 0xffffffff82601d39 
ip_fw3_ctl_zero_entry() at ip_fw3_ctl_zero_entry+0x1c9 0xffffffff82601d39 
ip_fw3_ctl_sockopt() at ip_fw3_ctl_sockopt+0xe2 0xffffffff826020c2 
Stopped at      Debugger+0x7c:  movb    $0,0xbdaf09(%rip)
db>