This is call stack:
Program received signal SIGABRT, Aborted.
1  0x00007ffff6a4f8e8 in __GI_abort () at abort.c:90
2  0x00000000004765d6 in ofputil_protocol_to_ofp_version (protocol=<optimized out>) at lib/ofp-util.c:769
3  0x000000000047c19e in ofputil_encode_packet_out (po=po@entry=0x7fffffffa0e0, protocol=<optimized out>) at lib/ofp-util.c:7060
4  0x0000000000410870 in send_garp (garp=0x83cfe0, current_time=current_time@entry=1200375400) at ovn/controller/pinctrl.c:1738
5  0x000000000041430f in send_garp_run (active_tunnels=<optimized out>, local_datapaths=0x7fffffffc0a0, chassis_index=<optimized out>, chassis=0x8194d0, br_int=<optimized out>, ctx=0x7fffffffc080) at ovn/controller/pinctrl.c:2069

Signed-off-by: Guoshuai Li <ligs@dtdream.com>
Acked-by: Mark Michelson <mmichels@redhat.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>