Thanks to our failure to check in bug 559839, we didn't notice that ever since the TraceMonkey merge Saturday afternoon (http://hg.mozilla.org/mozilla-central/rev/759a2a19f8d3 and friends), every single mozilla-central mochitest-2 run has had eight failures, e.g. http://tinderbox.mozilla.org/showlog.cgi?log=Firefox/1272251503.1272252005.18919.gz Linux mozilla-central opt test mochitests-2/5 on 2010/04/25 20:11:43 s: moz2-linux-slave01 1588 ERROR TEST-UNEXPECTED-FAIL | /tests/dom/tests/mochitest/ajax/jquery/test_jQuery.html | ajax module: $.ajax - dataType html - Check if script was evaluated for datatype html expected: foo actual: undefined 1589 ERROR TEST-UNEXPECTED-FAIL | /tests/dom/tests/mochitest/ajax/jquery/test_jQuery.html | ajax module: $.ajax - dataType html - Check if script src was evaluated for datatype html expected: bar actual: null 1590 ERROR TEST-UNEXPECTED-FAIL | /tests/dom/tests/mochitest/ajax/jquery/test_jQuery.html | ajax module: $.ajax - dataType html - Expected 5 assertions, but 3 were run 1620 ERROR TEST-UNEXPECTED-FAIL | /tests/dom/tests/mochitest/ajax/jquery/test_jQuery.html | ajax module: load(String, Function) - check scripts - Check if script evaluation has modified DOM expected: foo actual: 1621 ERROR TEST-UNEXPECTED-FAIL | /tests/dom/tests/mochitest/ajax/jquery/test_jQuery.html | ajax module: load(String, Function) - check scripts - Check if script was evaluated after load expected: foo actual: undefined 1622 ERROR TEST-UNEXPECTED-FAIL | /tests/dom/tests/mochitest/ajax/jquery/test_jQuery.html | ajax module: load(String, Function) - check scripts - Check if script src was evaluated after load expected: bar actual: null 1623 ERROR TEST-UNEXPECTED-FAIL | /tests/dom/tests/mochitest/ajax/jquery/test_jQuery.html | ajax module: load(String, Function) - check scripts - Check if script evaluation has modified DOM expected: bar actual: 1624 ERROR TEST-UNEXPECTED-FAIL | /tests/dom/tests/mochitest/ajax/jquery/test_jQuery.html | ajax module: load(String, Function) - check scripts - Expected 7 assertions, but 5 were run They also show up (not as orange, but in the brief log) in TraceMonkey Mo2/Md2, so a slow and tiresome trip back in time in tbpl should show when it first started failing.

First failure is in http://tinderbox.mozilla.org/showlog.cgi?log=TraceMonkey/1271916039.1271917257.22901.gz from http://hg.mozilla.org/tracemonkey/rev/35c25547a135 - bug 560358

sayrer, I am not opposed to backing out the patch while I work on a fix, your call

I backed out the patch on mozilla-central. http://hg.mozilla.org/mozilla-central/rev/2968d19b0165

Thanks roc.

Both tests use match() and those are the only tests that use match. That's a pretty good starting point: test("$.ajax - dataType html", function() { expect(5); stop(); foobar = null; testFoo = undefined; var verifyEvaluation = function() { equals( testFoo, "foo", 'Check if script was evaluated for datatype html' ); equals( foobar, "bar", 'Check if script src was evaluated for datatype html' ); start(); }; $.ajax({ dataType: "html", url: url("data/test.html"), success: function(data) { $("#ap").html(data); ok( data.match(/^html text/), 'Check content for datatype html' ); setTimeout(verifyEvaluation, 600); } }); }); test("load(String, Function) - check scripts", function() { expect(7); stop(); window.testFoo = undefined; window.foobar = null; var verifyEvaluation = function() { equals( foobar, "bar", 'Check if script src was evaluated after load' ); equals( $('#ap').html(), 'bar', 'Check if script evaluation has modified DOM'); start(); }; $('#first').load(url('data/test.html'), function() { ok( $('#first').html().match(/^html text/), 'Check content after loading html' ); equals( $('#foo').html(), 'foo', 'Check if script evaluation has modified DOM'); equals( testFoo, "foo", 'Check if script was evaluated after load' ); setTimeout(verifyEvaluation, 600); }); });

AFAICT this was fixed by backing out, and then the offending patch was corrected and relanded.