ad@NetBSD.org (Andrew Doran) writes:

>Device drivers return 1/0 to flag whether or not they serviced an interrupt.
>For some time we have ignored that and called all of the handlers.

How do you want to handle concurrent interrupts on the same level?
IMHO you always have to call all of the handlers.

-- 
-- 
                                Michael van Elst
Internet: mlelstv@serpens.de
                                "A potential Snark may lurk in every tree."