Sheesh. Everyone is so negative! Well, I'm going to be too.
I think compared to some of the other things that have been thrown into
-current, the KSE stuff will be the LEAST disruptive. Don't go bashing
Julian for coming up with a reasoned approach to adding them, discussing
the concept at many meetings (including at USENIX), and doing all the
hard work to get it done. He's done a hellof a lot more discussion and
worked with people a lot more any other feature that has been thrown into
-current. He doesn't deserve these kind of responses, not after all the
work that's been done. He's been talking about this for 2 years. TWO
years!
-
Just for myself, I am seriously considering just throwing the whole lot
(-current, that is) away and starting over from -stable. I spent 20 hours
last weekend trying to unwind even part of the VM system from Giant, and
failed utterly. I'd love to see the KSE stuff in -stable, I think it
might even be a better fit.
I am seriously considering this because I think we made a huge mistake
throwing away the spl*() mechanism in -current, as a means of getting out
from under the Giant lock paradigm quickly and partitioning the problem
in a manner that allows subsystems to be worked on independantly. And
I don't see any way to get it back. The spl*() mechanism already
partitions the major subsystems that *need* to operate concurrently:
I/O, interrupts, and the network stack. We would be able to work on
major subsystems independantly and we would be able to debug things much
more easily. -current as it currently stands is very nearly undebuggable.
I've been thinking about this for the last few months... I am still
thinking about it. I haven't made a decision yet. I think if KSEs go
into -current I would stick with it, but if KSEs do not go into -current
I don't see much of a point, -current will have wholely gone off in a
direction that I don't believe in (rather then just mostly gone off).
-Matt
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