http://bugs.winehq.org/show_bug.cgi?id=13892
--- Comment #1 from Dmitry Timoshkov dmitry@codeweavers.com 2008-06-14 04:04:01 --- Created an attachment (id=13991) --> (http://bugs.winehq.org/attachment.cgi?id=13991) Make the tests for MMIO_ALLOCBUF pass in Wine
Does the attached patch help?