Re: [PATCH] m68k: Implement kernel memory protection

From: Daniel Palmer
Date: Mon Nov 17 2025 - 04:51:49 EST


Hi Greg,

On Mon, 17 Nov 2025 at 12:04, Greg Ungerer <gerg@xxxxxxxxxx> wrote:
> Seems to work fine on real ColdFire hardware (tested on an M5475 -
> that is one that has an MMU):

Thanks for testing. I just tried on my MVME147 (030) and the marking
RO seems to work but it locks up starting init:

[ 6.520000] devtmpfs: mounted
[ 6.540000] Freeing unused kernel image (initmem) memory: 120K
[ 6.550000] Write protecting kernel text: 0x2000 - 0x3676f0
[ 6.560000] Write protecting kernel read-only data: 0x36a000 - 0x3be000
[ 6.580000] rodata_test: all tests were successful
[ 6.590000] Run /sbin/init as init process
<dead>

My 060 Amiga 4000 seems ok. So I guess some 030 mmu issue. I'll debug
and send again..

Thanks!

Daniel