[resent, because i got the lkml-adress wrong the first time] Hi Eric! To put this mail into context: http://bugs.freedesktop.org/show_bug.cgi?id=20985 I finally poked a little bit at the code, since i figured you would be glad if i came up with something. I think I understood the problem and made a correct patch, but kernel is new territory for me. So please doublecheck if i made the correct choices for the error-returns. Can you make shure that this patch (if acceptable) goes into mainline? Sincerely, Florian p.s.: does somebody know where the actual implementation of copy_[from/to]_user for my core2duo @64bit is? it is a mistery!