Re: [patch] Re: That horrible hack from hell called A20

From: H. Peter Anvin (hpa@transmeta.com)
Date: Wed Jan 10 2001 - 15:02:13 EST


rdunlap wrote:
>
> Alan-
>
> Here's a patch to 2.2.19-pre7 that is essentially a backport of the
> 2.4.0 gate-A20 code.
>
> This speeds up booting on my fast-A20 board (Celeron 500 MHz, no KBC)
> from 2 min:15 seconds to <too small to measure by my wrist watch>.
>
> Kai, you reported that your system was OK with 2.4.0-test12-pre6.
> Does that mean that it's OK with 2.4.0-final also?
>
> Comments? Should we be merging Peter's int 0x15-first patch with this?
> And test for A20-gated after each step, before going to the next
> method? Get that working and then backport it to 2.2.19?
> Have their been any test reports on Peter's last patch? I didn't see
> any, but if that should be the goal, I'll give it a whirl.
>
> I'd like to see this applied to 2.2.19. At least changing the long
> delay so that it doesn't appear that Linux isn't going to boot...
>

I certainly would appreciate feedback. I'm probably going to have to
release a new version of SYSLINUX which will use that method, too.

        -hpa

-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt
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