http://bugs.winehq.org/show_bug.cgi?id=18824
--- Comment #13 from Rico kgbricola@web.de 2009-06-08 11:49:52 --- I've added a fixme after the count=InterlockedIncrement(&This->lock_count); with the result:
fixme:d3d:buffer_Map ###########count 1 fixme:d3d:buffer_Map ###########count 0 fixme:d3d:buffer_Map ###########count -96
huh?