Running new-run-webkit-tests on Snow Leopard against the apple mac build, the following two tests appear to be somewhat flaky when run under the whole test suite: storage/domstorage/localstorage/storagetracker/storage-tracker-4-create.html storage/domstorage/localstorage/storagetracker/storage-tracker-5-delete-one.html to reproduce, run: % new-run-webkit-tests --print default,config --worker-model=inline --worker-model=inline runs every test in a single DRT from under a single python process; it most closely resembles the behavior of old-run-webkit-tests