On Tue, 9 Sept 2025 at 14:39, H. Peter Anvin <h...@zytor.com> wrote:
>
> 1 GB systems used highmem too, sadly. And 1 GB was the norm for a big chuck
> of the late 32-bit era.
Well, while on x86 1GB systems did use highmem, they'd typically not
use very much of it.
IOW, they'd have about 900MB as lowmem (ok, I think it was 896MB to be
exact), with something like 120MB highmem.
So they'd either lose a bit of memory, or they'd use the 2G:2G split.
Or - and I think this is the main point - they'd stay on old kernels
like the ancient museum pieces they are.
I'm not convinced it makes sense to have a modern kernel on a museum piece.
Linus
