jquery/effects.html times out on Windows XP Debug (Tests). See the URL for an example. I think this test is just too big to be run in Windows Debug builds. Is there any way we can break it up into smaller chunks?
Other options (in decreasing order of preference): 1) Add a way for certain tests to have longer timeout values 2) Skip this test in Debug builds on Windows (which would require fixing bug 55254) 3) Skip this test on Windows XP
Splitting it up doesn't seem too hard. We'd have to split up jquery/resources/unit/effects.js into effects{1,2,3,...}.js and then make effects{1,2,3,...}.html to match. It would make merging future versions of the jquery test suite harder, though.
There's a similar bug filed about GTK. Splitting the test into smaller pieces is pretty straightforward. I wouldn't worry too much about merging with future versions of the test suite.
*** This bug has been marked as a duplicate of bug 56080 ***