make -C tools/testing/selftests TARGETS="net/forwarding" TEST_PROGS=min_maax_mtu.sh TEST_GEN_PROGS="" run_tests
make: Entering directory '/home/virtme/testing-4/tools/testing/selftests'
make[1]: Entering directory '/home/virtme/testing-4/tools/testing/selftests/net/forwarding'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing-4/tools/testing/selftests/net/forwarding'
make[1]: Entering directory '/home/virtme/testing-4/tools/testing/selftests/net/forwarding'
TAP version 13
1..1
# overriding timeout to 21600
# selftests: net/forwarding: min_max_mtu.sh
# 12.35 [+12.35] TEST: ping                                                          [ OK ]
# 13.86 [+1.51] TEST: ping6                                                         [ OK ]
# 16.25 [+2.39] TEST: Test maximum MTU configuration                                [ OK ]
# 24.86 [+8.61] TEST: Test traffic, packet size is maximum MTU                      [ OK ]
# 27.10 [+2.24] TEST: Test minimum MTU configuration                                [ OK ]
# 30.94 [+3.84] TEST: Test traffic, packet size is minimum MTU                      [ OK ]
ok 1 selftests: net/forwarding: min_max_mtu.sh
make[1]: Leaving directory '/home/virtme/testing-4/tools/testing/selftests/net/forwarding'
make: Leaving directory '/home/virtme/testing-4/tools/testing/selftests'
xx__-> echo $?
0
xx__-> echo scan > /sys/kernel/debug/kmemleak && cat /sys/kernel/debug/kmemleak
xx__->