Re: kern/51148: i386 install floppies no longer boot

[Maxime Villard <max%m00nbsd.net@localhost>]

Le 25/05/2016 à 19:06, Andreas Gustafsson a écrit :
> Maxime,
>
> I have now run the tests you asked for.
>
> > 	Does reverting only [1] fix the problem?
>
> Yes.  The system still doesn't install because the kernel is unable
> to exec /sbin/init, but this is a different bug; when I don't revert
> [1], the kernel does not even start (there are no kernel messages
> on the console).
>
> > 	What if you put 'fillkpt' instead of 'fillkpt_nox' in [1]?
>
> I tested with this patch against 2016.05.22.09.10.37 sources:
>
> diff -u -r1.124 locore.S
> --- locore.S    15 May 2016 07:17:53 -0000      1.124
> +++ locore.S    25 May 2016 14:33:35 -0000
> @@ -731,7 +731,7 @@
>         movl    RELOC(tablesize),%ecx   /* length of BOOTSTRAP TABLES */
>         shrl    $PGSHIFT,%ecx
>         orl     $(PG_V|PG_KW),%eax
> -       fillkpt_nox
> +       fillkpt
>
>         /* We are on (4). Map ISA I/O mem (later atdevbase) RWX. */
>         movl    $(IOM_BEGIN|PG_V|PG_KW/*|PG_N*/),%eax
>
> and it did _not_ fix the problem.

Thanks for the tests. I see where the problem is, and I'll commit a patch
soon.

> Later, you wrote:
>
> > I would be happy to do the tests myself. But the only i386 machine I have right
> > now is a VirtualBox VM, and there is PR 51134 that reboots the machine every ~5
> > minutes. I can do almost nothing on it.
>
> What do you host VirtualBox on?  You can test the i386 port using anita+qemu
> even on a non-i386 host.

I'll answer in the other PR.