Re: [PATCH] mm: avoid zeroing user movable page twice with init_on_alloc=1

[Geert Uytterhoeven]

Hi Zi,

On Thu, Dec 5, 2024 at 5:05 PM Zi Yan <ziy@xxxxxxxxxx> wrote:
> Is it possible to run a 32bit kernel with HIGHMEM and
> CONFIG_INIT_ON_ALLOC_DEFAULT_ON on the machine (of course with my patch
> reverted)? Just to check my reasoning below.

While I can boot 32-bit kernels, CPU_TX49XX and MACH_TX49XX do not
select CPU_SUPPORTS_HIGHMEM resp. SYS_SUPPORTS_HIGHMEM, and thus
HIGHMEM is not supported.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds