@frostschutz: Huh. That's mighty strange
.
It never ever touches hardware rotation, and never even does any "PUT" fb ioctls, so I'm not quite sure how a "GET" could potentially race with anything. If it did, I'd expect fbink to get messed up, not Nickel ;p.
Not familiar enough with the intricacies of ioctl handling in the Linux fb/epdc driver code to say if there could be weird-ass side-effects like that during an ioctl race
.