Op do 23 feb. 2023 om 15:05 schreef Kars de Jong <jongk@xxxxxxxxxxxxxx>:
Op do 23 feb. 2023 om 13:39 schreef Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>:
So this has been broken for the last 15 years?
Yes, looks like this commit broke it:
https://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k.git/commit/arch/m68k/mm/motorola.c?id=12d810c1b8c2b913d48e629e2b5c01d105029839,
so slightly longer than 15 years :-).
I found the original thread where I reported this here:
https://marc.info/?t=117175647600006&r=1&w=2, including a version of
this same patch, created by Roman Zippel:
https://marc.info/?l=linux-m68k&m=117184910524555&w=2. This was still
in CVS times.
Apparently I used to work around this issue by subtracting 1 from the
memory size in my boot loader.
Now I just need to figure out why the last page of memory is excluded.
Do you also see this on other machines?
Zone ranges:
DMA [mem 0x00000000fc000000-0x00000fffffffefff]
Normal empty
Movable zone start for each node
Early memory node ranges
node 0: [mem 0x00000000fc000000-0x00000000ffffefff]
Initmem setup node 0 [mem 0x00000000fc000000-0x00000000ffffefff]
Kind regards,
Kars.
