Subject: Re: Multiprocessor with NetBSD ?
To: Erik E. Fair <firstname.lastname@example.org>
From: Bill Sommerfeld <email@example.com>
Date: 06/03/2001 15:19:43
> > Jason, just to be accurate, does NetBSD/alpha have a sufficiently
> > re-entrant kernel that it can run simultaneously on all processors,
> > as required? Do we do interrupt processing on all processors?
> General I/O interrupts, no. Clock interrupts, yes.
Also, there's nothing in the MI kernel code in -current which requires
that I/O interrupts run only on the master processor.
> So, "symmetric multiprocessing", as I have always understood the term,
> simply refers to the ability for all processors to run general kernel
> code, not necessarily concurrently. Please correct me if I am simply
> confused on this point :-)
That's my understanding as well.