http://tinderbox.mozilla.org/showlog.cgi?log=TraceMonkey/1281656863.1281658409.13509.gz Rev3 Fedora 12 tracemonkey opt test xpcshell on 2010/08/12 16:47:43 s: talos-r3-fed-027 TEST-INFO | /home/cltbld/talos-slave/tracemonkey_fedora_test-xpcshell/build/xpcshell/tests/test_necko/unit_ipc/test_redirect-caching_canceled_wrap.js | running test ... command timed out: 1200 seconds without output, killing pid 1953

http://tinderbox.mozilla.org/showlog.cgi?log=Firefox/1281684471.1281686308.20004.gz Rev3 Fedora 12 mozilla-central debug test xpcshell on 2010/08/13 00:27:51 TBPL doesn't autofind this bug so it's possible there have been more instances of it.