make -C tools/testing/selftests TARGETS="net/forwarding" TEST_PROGS=ip6gree_hier_keys.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: ip6gre_hier_keys.sh

DETECTED CRASH, lowering timeout
# 19.53 [+19.53] TEST: GRE hierarchical IPv4-in-IPv6 with ikey/okey                  [ OK ]
# 21.20 [+1.67] TEST: GRE hierarchical IPv6-in-IPv6 with ikey/okey                  [ OK ]
# 23.51 [+2.31] TEST: ping GRE IPv6, packet size 1800 after MTU change              [ OK ]
# 25.43 [+1.91] TEST: GRE hierarchical IPv4-in-IPv6 with ikey/okey (new remote)     [ OK ]
# 27.02 [+1.60] TEST: GRE hierarchical IPv6-in-IPv6 with ikey/okey (new remote)     [ OK ]
# 29.21 [+2.18] TEST: GRE hierarchical IPv4-in-IPv6 with ikey/okey (old remote)     [ OK ]
# 30.77 [+1.56] TEST: GRE hierarchical IPv6-in-IPv6 with ikey/okey (old remote)     [ OK ]
ok 1 selftests: net/forwarding: ip6gre_hier_keys.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__->