After creating tap interface, and set IP address at local0.

Ping to tap interface.

There is segmetation fault.

DBGvpp# tap connect lstack address 192.168.2.2/24
tap-0
DBGvpp# set interface state tap-0 up
DBGvpp#
DBGvpp# set interface ip address local0 192.168.2.1/24
DBGvpp# set interface state local0 up
DBGvpp#
DBGvpp# ping 192.168.2.2

Thread 1 "vpp_main" received signal SIGSEGV, Segmentation fault.
0x00007ffff6f4d9f7 in clib_memcpy (dst=0x7fff14438b48, src=0x0, n=6) at /root/dev2/vpp/build-data/../src/vppinfra/memcpy_sse3.h:208
208 *(u16 *) dstu = *(const u16 *) srcu;
(gdb)