On Fri, 2008-03-14 at 09:42 +0100, Segher Boessenkool wrote: > > I saw no effect from that change. So now we're back to pure > mystery, > > I guess. > > Hey, we know something now: it's "just" a problem in the kernel :-) We don't know that for sure. The DABR context switching code is trivial enough... Ben.