make -C tools/testing/selftests TARGETS="net" TEST_PROGS=busy_poll_test.shh TEST_GEN_PROGS="" run_tests
make: Entering directory '/home/virtme/testing-3/tools/testing/selftests'
make[1]: Entering directory '/home/virtme/testing-3/tools/testing/selftests/net'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing-3/tools/testing/selftests/net'
make[1]: Entering directory '/home/virtme/testing-3/tools/testing/selftests/net'
TAP version 13
1..1
# overriding timeout to 7200
# selftests: net: busy_poll_test.sh
# nc: invalid option -- 'N'
# Ncat: Try `--help' or man(1) ncat for more information, usage options and help. QUITTING.
# md5sum mismatch
# input file md5sum: d57699d042b7e51ec9a570401ae7ef66
# output file md5sum: d41d8cd98f00b204e9800998ecf8427e
# test_busypoll failed
not ok 1 selftests: net: busy_poll_test.sh # exit=1
make[1]: Leaving directory '/home/virtme/testing-3/tools/testing/selftests/net'
make: Leaving directory '/home/virtme/testing-3/tools/testing/selftests'
xx__-> echo $?
0
xx__-> echo scan > /sys/kernel/debug/kmemleak && cat /sys/kernel/debug/kmemleak
xx__->