Bill Studenmund wrote:

> I think the problem with this is that there are times when the page fault
>
>happens in code that is not on an upcall stak yet has locks held such that
>an upcall will block.
>  
>
I'm curious, how does the original paper on SA suggest handling this?
Such a fundamental thing as handling page faults cannot have been ignored
in the paper, can it?
How does FreeBSD handle?  How does Sun handle it?
Or is our SA implementation different enough that this problem only occurs
in NetBSD?

    -- Lennart