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SubjectRe: KERNEL BUG: console not working in linux
Followup to:  <>
By author: Andries Brouwer <>
In newsgroup:
> On Mon, Nov 27, 2000 at 05:40:58PM -0800, H. Peter Anvin wrote:
> > > What about adding an additional
> > >
> > > andb $0xfe, %al
> > >
> > > in front of the outb?
> > Already in test12-pre1.
> Ach, I see I am too slow - had not even seen -pre1 and now Linus
> already announces -pre2.
> Anyway, I considered that this A20 stuff belonged to my docs on
> the keyboard controller, so added a page
> (written half an hour ago). Comments are welcome.

One thing... the "thwarted by cache" comment probably isn't very
useful. As far as I know the only machines which have the cache
problem are i386 boxen, but the i386 doesn't have WBINVD. The i486
has a pin on the CPU for A20, which takes effect inside the L1 cache,
and so it shouldn't have any A20 cache issues.


<> at work, <> in private!
"Unix gives you enough rope to shoot yourself in the foot."
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