Re: CVS commit: src/sys/arch/m68k/m68k

[Tetsuya Isaki <isaki%pastel-flower.jp@localhost>]

At Sat, 5 Apr 2025 22:01:37 +1100,
Nat Sloss wrote:
> Following advice and following the spirit of my intentions adding nop in the 
> switch i added nops before "rte" in locore.s in sys/mac68k as opposed to 
> m68k/swicher.

Are you sure?

First, errata E4 said the workaround is "nop-before-f-line",
Somehow, what you wrote was "nop-before-rts" (in the kernel).
I've also pointed it out.

Next you claimed that as if these rts instructions returned the
flow to the userland directly...  (Of course not)
So I've just pointed out that the rts is not what you imagined.
In the first place, "nop-before-rts" is already your fiction.


If I believe this E4 text, no kernel patch should be necessary
for this issue, as Martin alreadly said.
---
Tetsuya Isaki <isaki%pastel-flower.jp@localhost / isaki%NetBSD.org@localhost>