Subject: Re: SGMAP DMA improvements
To: Matthew Jacob <>
From: Wilko Bulte <>
List: port-alpha
Date: 07/19/2001 20:04:25
On Thu, Jul 19, 2001 at 10:59:56AM -0700, Matthew Jacob wrote:
> On Thu, 19 Jul 2001, Jason R Thorpe wrote:
> > On Thu, Jul 19, 2001 at 07:51:41PM +0200, Wilko Bulte wrote:
> >
> >  > If Matt can't, I have a AS8400 with 8 CPUs and 12 GB of memory that I should
> >  > be able to 'borrow'.
> >
> > Hm, and if I kluge something into the PROM console code, I'd like to know
> > how well MP works on that machine, too.
> I tried FreeBSD/SMP yesterday at NASA/Ames on it. At least on jules the second
> processor of the two on the CPU board did not have Processor Available
> set even though SRM said it was there. Igmoring that seemed to work, but there
> were some really funky freezups- not sure why. I thought it might be that the
> IPI interrupts weren't enabled on all the processors, but, no, they were. One
> thing I also did notice was that the mcclock interrupts were enabled on both
> processors- that might be what was causing wierdness (two! two! two
> schedulers in one!).
> >
> > Feh, I should just do a zs attachment for TLSB/GBUS.
> Please do- I haven't had time to hack in one.

Whatever you do: I'm more than happy to test things (in between my day
job chores that is ;-) but please supply me with a binary kit as small
as possible. This greatly enhances my turnaround time with results of the


|   / o / /  _   	Arnhem, The Netherlands    	email:
|/|/ / / /( (_) Bulte	"Youth is not a time in life, it is a state of mind"