http://bugs.winehq.org/show_bug.cgi?id=12112
--- Comment #9 from Austin English austinenglish@gmail.com 2008-03-20 20:19:59 --- (In reply to comment #7)
I found the reason why the results don't make sense: it doesn't always crash, so I have mistakenly marked commits as good.
Once you've narrowed down a commit, revert it, compile and try running a few times to be sure you've got the right commit. If reverting doesn't work, compile the parent commit.