http://bugs.winehq.org/show_bug.cgi?id=28276
--- Comment #8 from Grazvydas Ignotas notasas@gmail.com 2011-09-11 19:29:13 CDT --- Created an attachment (id=36332) --> (http://bugs.winehq.org/attachment.cgi?id=36332) btrfs workaround
Thanks, it seems to be btrfs bug, I've sent a fix for btrfs people: http://marc.info/?t=131577377600003&r=1&w=2
Meanwhile you can use this wine workaround, but it's not really suitable for upstream..