http://bugs.winehq.org/show_bug.cgi?id=23323
--- Comment #61 from Devin Cofer ranguvar@archlinux.us 2010-06-24 03:35:40 --- Confrmed workaround, switching to kernel 2.6.32.15 also fixes the problem for me.
I'm messing with a git bisect now, but don't let that stop any of you from doing your own -- this'll likely take a while, and I have other stuff to attend to as well :)