linux-kernel - Re: Drop support for x86-32

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Message-ID: <20120824185741.GC5094@thunk.org>
Date:	Fri, 24 Aug 2012 14:57:41 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Brian Gerst <brgerst@...il.com>, wbrana <wbrana@...il.com>,
	Martin Nybo Andersen <tweek@...ek.dk>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Drop support for x86-32

On Fri, Aug 24, 2012 at 11:17:20AM -0700, H. Peter Anvin wrote:
> 
> Speaking as one of the x86 maintainers... we are currently deciding the
> cost/benefit tradeoff around removing i386 support.  I don't mean
> general x86-32 support, I mean i386 as opposed to i486, Pentium, and so on.

Random question.  As I recall the Space Shuttle and the International
Space Station was only using 80386's because they have to be hardened
against radiation/cosmic rays, as well as all of the other mechnical
and thermal stresses associated with being in a spacecraft.  Is there
any newer generation cpu's which are space-cerified at this point?

(Of course, I'm rather doubtful that NASA would ever be willing to use
Linux on something like the Curiosity Mars Rover, but I could imagine
Linux being used in a non-mission critcal system on the ISS....)

      	      		    	    	      - Ted
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