http/tests/navigation/postredirect-frames.html crashed on Leopard Intel Release Bot http://build.webkit.org/results/Leopard%20Intel%20Release%20(Tests)/r53345%20(9429)/results.html Sadly I have no way to get you the crash report. This test has been around for a long time: http://trac.webkit.org/browser/trunk/LayoutTests/http/tests/navigation/postredirect-frames.html I suspect this is just a symptom of some other bug.