Re: Atari console corruption

Geert Uytterhoeven
2022-07-11T11:43:26Z

On Wed, Oct 13, 2010 at 9:10 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> If your shell command line looks like:
>
> sh-3.1# abcd
>
> Then insert another 'b' in front of the existing 'b'. The 'c' will
> become corrupted.
> The actual characters don't matter, except that the inserted character must be
> the same as the existing one.
> It happens in all even columns, so if your prompt is different, just try it at
> a different even position.
>
> It happens in frame buffer depths 2, 4, and 8. In monochrome mode the corruption
> is different. In 16 bpp, when it uses the cfb code, there's no
> corruption, so the bug
> must be in the Atari-specific code.
>
> I could not reproduce it in vi, only in bash.
>
> Tested on ARAnyM only.

FTR, this was "fixed" in commit 81732c3b2fede049 ("tty vt: Fix line
garbage in virtual console on command line edition") in v3.7, followed
by a few fixes for the regressions introduced by this fix.

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

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