make -C tools/testing/selftests TARGETS="net" TEST_PROGS=l2tp.sh TEST_GEN__PROGS="" run_tests
make: Entering directory '/home/virtme/testing-3/tools/testing/selftests'
make[1]: Entering directory '/home/virtme/testing-3/tools/testing/selftests/net'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing-3/tools/testing/selftests/net'
make[1]: Entering directory '/home/virtme/testing-3/tools/testing/selftests/net'
TAP version 13
1..1
# overriding timeout to 7200
# selftests: net: l2tp.sh
# ./l2tp.sh: line 138: 30028 Segmentation fault      ip -netns $host_1 l2tp add tunnel tunnel_id 1041 peer_tunnel_id 1042 encap ip local 10.1.1.1 remote 10.1.2.1
not ok 1 selftests: net: l2tp.sh # exit=139
make[1]: Leaving directory '/home/virtme/testing-3/tools/testing/selftests/net'
make: Leaving directory '/home/virtme/testing-3/tools/testing/selftests'
xx__-> echo $?
0
xx__-> echo scan > /sys/kernel/debug/kmemleak && cat /sys/kernel/debug/kmemleak
xx__->