General :: NS2 - Some Validation Tests Failed

After many modifications, I managed to install ns2.28 , but some validation tests failed. I got the following message at the end of validation test:

validate overall report: some tests failed:
./test-all-simple ./test-all-tcp ./test-all-testReno ./test-all-newreno ./test-all-sack ./test-all-tcpOptions ./test-all-sack-full ./test-all-tcpVariants ./test-all-LimTransmit ./test-all-aimd ./test-all-greis ./test-all-rfc2581 ./test-all-sctp ./test-all-tcpHighspeed ./test-all-frto ./test-all-friendly ./test-all-srm ./test-all-realaudio ./test-all-ecn ./test-all-ecn-full ./test-all-quickstart ./test-all-hier-routing ./test-all-lan ./test-all-mcast ./test-all-vc ./test-all-mixmode ./test-all-red ./test-all-adaptive-red ./test-all-red-pd ./test-all-rio ./test-all-vq ./test-all-rem ./test-all-gk ./test-all-pi ./test-all-cbq ./test-all-schedule ./test-all-jobs ./test-all-intserv
to re-run a specific test, cd tcl/test; ./test-all-TEST-NAME

Notice that some tests in webcache will fail on freebsd when -O is turned on. This is due to some event reordering, which will disappear when -g is turned on. I tried to run the test individually one after another, but that is too time consuming, it prompts for permission after every test and thus runs many test & opens a lot of xgraph window. The tests I run so far individually, agreed with the reference output. Now I am wondering, should I report a bug about it, or should I hire a kid to run those failed 40 tests( which require hitting the ENTER key 1200 times,maybe ), or what else should I do.