linux-kernel - Re: Is 386 processor still supported?

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Message-ID: <alpine.LFD.1.10.0901151437230.5737@ftp.linux-mips.org>
Date:	Thu, 15 Jan 2009 14:44:24 +0000 (GMT)
From:	"Maciej W. Rozycki" <macro@...ux-mips.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
cc:	Jan-Benedict Glaw <jbglaw@...-owl.de>, Ingo Molnar <mingo@...e.hu>,
	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 Thu, 15 Jan 2009, Alan Cox wrote:

> > userland support with little burden for both Linux and respective user 
> > software maintainers.  Certainly it adds some bloat to the kernel, but I 
> > think it is not an option that should be outright dismissed without 
> > consideration.
> 
> Nobody normally builds for 386 (and you need the big FPU emulator etc too
> and pay a big penalty for the lack of working WP bits) so it wouldn't be
> a big penalty if you can actually find an i386 user any more ;)

 You can actually escape the FPU emulator if you have a proper computer 
(an i386/80287 combo, anyone? ;) -- we've got it right actually :) ), but 
the rest and overall I agree with you.  And I think i386-class cores can 
be still seen in some embedded applications, so there may be non-epsilon 
interest yet.

  Maciej
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