Hi, I remember that SPLs were removed from DragonFlyBSD, but having readwhat
they are for (setting the various priority levels on interruptprocessing code
so things are processed in the right order wheninterrupts/traps are received),
I wondered how replacing them with asingle tier of critical sections works? Are
there some interruptpriorities hard coded into the LWKT scheduler on each CPU?
Also, just wondering how the above relates to converting the
interruptprocessing stuff to run in a thread context for each driver...doesthat
allow interrupts to be scheduled by normal means (I would guessLWKT) rather
than having a special mechanism? Thank you for putting up with these sorts of
questions, I am trying toget my head around operating systems and some of the
approaches inDragonFlyBSD are really novel so I cant find much information
aboutthem. Thanks in advance, Alex Burke.
