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Message-ID: <20090115123614.GR11087@lug-owl.de>
Date: Thu, 15 Jan 2009 13:36:14 +0100
From: Jan-Benedict Glaw <jbglaw@...-owl.de>
To: "Maciej W. Rozycki" <macro@...ux-mips.org>
Cc: Ingo Molnar <mingo@...e.hu>, Alan Cox <alan@...rguk.ukuu.org.uk>,
Peter Zijlstra <peterz@...radead.org>,
Jiri Kosina <jkosina@...e.cz>, Adam Osuchowski <adwol@...k.pl>,
linux-kernel@...r.kernel.org, Nick Piggin <npiggin@...e.de>,
Thomas Gleixner <tglx@...utronix.de>,
"H. Peter Anvin" <hpa@...or.com>
Subject: Re: Is 386 processor still supported?
On Tue, 2009-01-13 01:06:55 +0000, Maciej W. Rozycki <macro@...ux-mips.org> wrote:
>
> Myself, I could not resist trying an APIC-based 486 SMP box and possibly
> fixing issues if I found one and it was MPS-compliant, but nothing beyond
> that I would say. Life's too short.
While it is not SMP, I still have one or two working i386 (and
a compatible AMD) system around.
Back in the days where I ran them the last time, there were two
issues:
* Debian's baseline libc is compiled to use LOCK and some other
newish instructions that are not available on a real i386 CPU.
* There was a patch flying around to introduce a kernel-based
emulator for those instructions. However, this was (at that time)
neither included in Debian's kernel, nor in the upstream sources.
MfG, JBG
--
Jan-Benedict Glaw jbglaw@...-owl.de +49-172-7608481
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