Re: SGI O2 unable to boot 9.0+ (status update)

On Mon, Jul 01, 2024 at 01:39:56PM +1000, matthew green wrote:
> Mike Shields writes:
> > Just thought I'd give a status update on the attempts to get R5k/R10k IP32 sgimips back to life:
> > 
> > I was able to find the point via bisection, only took about 9 or 10 iterations. On the freebsd-8 branch, the failure starts between 2018-03-07 and 2018-03-08 (a build of 03-97 boots fine, a build of 03-08 freezes after a few lines). 
> > 
> > I have been sifting through the changes, and am finding some updates in src/sys/arch/mips/mips/locore.S to be the most suspicious.
> > 
> > I am not familiar with R5k/R10k core setup steps, so I'm just fooling around in the dark for now, testing various reversions in that file, but with no success so far.
> > 
> > I'll keep plugging away, but if any other interested eyes have more familiarity, feel free to bail me out of these depths! ;-)
> 
> cc: maya@ who made these changes to locore.S rev's 1.211-1.217.
> 
> 
> .mrg.

I only briefly looked at this, sorry, but I vaguely recall a regression
after my commit that was fixed by macallan.

locore.S 1.219
re-enable 64bit addressing in n32 kernels
Now these work again, at least on my Indy.

I'll try to take a closer look and will replyif I have anything.