make -C tools/testing/selftests TARGETS="net" TEST_PROGS=big_tcp.sh TEST_GGEN_PROGS="" run_tests
make: Entering directory '/home/virtme/testing-1/tools/testing/selftests'
make[1]: Entering directory '/home/virtme/testing-1/tools/testing/selftests/net'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing-1/tools/testing/selftests/net'
make[1]: Entering directory '/home/virtme/testing-1/tools/testing/selftests/net'
TAP version 13
1..1
# timeout set to 3600
# selftests: net: big_tcp.sh
# 0.28 [+0.28] Error: TC classifier not found.
# 0.28 [+0.00] We have an error talking to the kernel
# 0.32 [+0.04] Error: TC classifier not found.
# 0.32 [+0.00] We have an error talking to the kernel
# 0.42 [+0.11] Testing for BIG TCP:
# 0.42 [+0.00] CLI GSO | GW GRO | GW GSO | SER GRO
# 0.50 [+0.08] Warning: Extension length revision 0 not supported, missing kernel module?
# 0.51 [+0.01] iptables v1.8.8 (nf_tables): Could not fetch rule set generation id: Invalid argument
# 0.51 [+0.00] 
# 0.54 [+0.02] Warning: Extension length revision 0 not supported, missing kernel module?
# 0.55 [+0.01] iptables v1.8.8 (nf_tables): Could not fetch rule set generation id: Invalid argument
# 0.55 [+0.00] 
# 1.60 [+1.05] iptables v1.8.8 (nf_tables): Could not fetch rule set generation id: Invalid argument
# 1.60 [+0.00] 
# 1.60 [+0.00] ./big_tcp.sh: line 107: test: !=: unary operator expected
# 1.63 [+0.03] Warning: Extension length revision 0 not supported, missing kernel module?
# 1.64 [+0.01] iptables v1.8.8 (nf_tables): Could not fetch rule set generation id: Invalid argument
# 1.64 [+0.00] 
# 1.67 [+0.03] Warning: Extension length revision 0 not supported, missing kernel module?
# 1.68 [+0.01] iptables v1.8.8 (nf_tables): Could not fetch rule set generation id: Invalid argument
# 1.68 [+0.00] 
# 1.68 [+0.00] on        on       on       on      : [FAIL_on_link1]
not ok 1 selftests: net: big_tcp.sh # exit=1
make[1]: Leaving directory '/home/virtme/testing-1/tools/testing/selftests/net'
make: Leaving directory '/home/virtme/testing-1/tools/testing/selftests'
xx__-> echo $?
0
xx__->