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
# 18.08 [+18.08] TEST: GRE hierarchical IPv4-in-IPv6 with ikey/okey                  [ OK ]
# 19.48 [+1.40] TEST: GRE hierarchical IPv6-in-IPv6 with ikey/okey                  [ OK ]
# 21.77 [+2.28] TEST: ping GRE IPv6, packet size 1800 after MTU change              [ OK ]
# 23.50 [+1.74] TEST: GRE hierarchical IPv4-in-IPv6 with ikey/okey (new remote)     [ OK ]
# 24.97 [+1.47] TEST: GRE hierarchical IPv6-in-IPv6 with ikey/okey (new remote)     [ OK ]
# 27.03 [+2.06] TEST: GRE hierarchical IPv4-in-IPv6 with ikey/okey (old remote)     [ OK ]
# 28.46 [+1.43] 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__->