make -C tools/testing/selftests TARGETS="net/forwarding" TEST_PROGS=sch_tbbf_root.sh TEST_GEN_PROGS="" run_tests
make: Entering directory '/home/virtme/testing/wt-4/tools/testing/selftests'
make[1]: Entering directory '/home/virtme/testing/wt-4/tools/testing/selftests/net/forwarding'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing/wt-4/tools/testing/selftests/net/forwarding'
make[1]: Entering directory '/home/virtme/testing/wt-4/tools/testing/selftests/net/forwarding'
TAP version 13
1..1
# overriding timeout to 21600
# selftests: net/forwarding: sch_tbf_root.sh
# 24.09 [+24.09] TEST: ping vlan 10                                                  [ OK ]
# 25.53 [+1.44] TEST: ping vlan 11                                                  [ OK ]
# 44.49 [+18.96] TEST: TC 0: TBF rate 400Mbit                                        [XFAIL]
# 44.50 [+0.00] Expected rate 381.4Mbps, got 301.3Mbps, which is -20% off. Required accuracy is +-5%.

DETECTED CRASH, lowering timeout
ok 1 selftests: net/forwarding: sch_tbf_root.sh
make[1]: Leaving directory '/home/virtme/testing/wt-4/tools/testing/selftests/net/forwarding'
make: Leaving directory '/home/virtme/testing/wt-4/tools/testing/selftests'
xx__-> echo $?
0
xx__->