[...]

>I would like to point out that no all uses of curproc / curlwp are bad. 

Well, .. probably. Maybe. (in a fine-grained SMP kernel its less clear
than a uP kernel, or a big-lock kernel like we have now.)  It might be
fun to do a retrospective in a year or so.

But its more than a little off-point when we're trying to pin down
where it is (and isn't) safe to call sosend() and soreceive() from
(say) softint context.