make -C tools/testing/selftests TARGETS="net" TEST_PROGS=msg_zerocopy.sh TTEST_GEN_PROGS="" run_tests
make: Entering directory '/home/virtme/testing/wt-1/tools/testing/selftests'
make[1]: Entering directory '/home/virtme/testing/wt-1/tools/testing/selftests/net'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing/wt-1/tools/testing/selftests/net'
make[1]: Entering directory '/home/virtme/testing/wt-1/tools/testing/selftests/net/lib'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing/wt-1/tools/testing/selftests/net/lib'
make[1]: Entering directory '/home/virtme/testing/wt-1/tools/testing/selftests/net'
TAP version 13
1..1
# timeout set to 3600
# selftests: net: msg_zerocopy.sh
# 0.09 [+0.09] !!!malformed message: len=0
# 0.21 [+0.12] !!!malformed message: len=0
# 0.32 [+0.11] !!!malformed message: len=0
# 0.43 [+0.11] !!!malformed message: len=0
not ok 1 selftests: net: msg_zerocopy.sh # exit=1
make[1]: Leaving directory '/home/virtme/testing/wt-1/tools/testing/selftests/net'
make: Leaving directory '/home/virtme/testing/wt-1/tools/testing/selftests'
xx__-> echo $?
0
xx__->