Re: SMP on Mac99

[BALATON Zoltan]

On Sat, 1 Mar 2025, Jd Lyons wrote:
> The error was about it not being able to write the new grub.cfg to the 
> hfs partition, I booted rescue mode form he CD and copied it manually in 
> CHROOT with hcopy from hfsutils.
>
> Now:
>
> lscpu
> Architecture:           ppc
>  CPU op-mode(s):       32-bit
>  Byte Order:           Big Endian
> CPU(s):                 2<————————two CPOs online!
>  On-line CPU(s) list:  0
>  Off-line CPU(s) list: 1

Does that match what you get on real dual G4? Shouldn't this say 
on-line cpus 0-1 instead of 1 offline?

> Model name:             7450, altivec supported
>  Model:                2.1 (pvr 8000 0201)
>  Thread(s) per core:   1
>  Core(s) per socket:   1
>  Socket(s):            1
>  BogoMIPS:             50.00
> Caches (sum of all):
>  L1d:                  32 KiB (1 instance)
>  L1i:                  32 KiB (1 instance)
>
> So we know ‘modern’ Linux seem to work just fine.

I think modern Linux just does not crash on smp bringup but I'm not sure 
it could actually init and use the second CPU.

> Now does morphOS work with SMP?

No it has no support for SMP. It would probably boot but use only 1 CPU.

Regards,
BALATON Zoltan