> Maybe this is silly and there exist services that do exactly this, in
> userspace, in a safe way, and as fast as a kernel trap. Sorry if so, but i
> think many people dont see the way out [the GGI people for example].
You can just use another selector/segment instead of the default datasegment
just as WINE does? Ok, will only work on i386 and friends. ...
(See modify_ldt system call.)
> best regards, Ingo Molnar
Marcus