https://bugs.winehq.org/show_bug.cgi?id=26130
--- Comment #3 from Henri Verbeet hverbeet@gmail.com --- This is probably more of a Valgrind issue than an issue with Wine or the tests. The test is calling DirectDrawEnumerateA() with a NULL callback on purpose, to test the exception handler in DirectDrawEnumerateExA(). It seems Valgrind doesn't handle that very well for some reason.