Indeed probably <sched.h> is what's wanted here. Shuah - I was taking patches for this code during the 6.12 development cycle, because it all interacted with the dev work I was doing. But I think that's died down now and things can return to normal. Do you want to take these like you usually do now? Or is that annoying because your tree won't be based on them for another cycle, so I should still do it? I'm okay with doing whatever you want. Jason