Date: Wed, 1 Apr 2015 15:41:55 +0100
From: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
To: Ingo Molnar <mingo@kernel.org>
Cc: Robert Richter <rric@kernel.org>, Borislav Petkov <bp@alien8.de>,
        LKML <linux-kernel@vger.kernel.org>, "H. Peter Anvin" <hpa@zytor.com>,
        Thomas Gleixner <tglx@linutronix.de>, Tony Luck <tony.luck@intel.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Steven Rostedt <rostedt@goodmis.org>,
        Andy Lutomirski <luto@amacapital.net>,
        Matt Fleming <matt@codeblueprint.co.uk>,
        =?UTF-8?B?SsO2cmcgUsO2ZGVs?= <joro@8bytes.org>,
        Jiri Kosina <jkosina@suse.cz>, Jeff Mahoney <jeffm@suse.com>,
        Michal Hocko <mhocko@suse.cz>, Vlastimil Babka <vbabka@suse.cz>,
        Andre Przywara <andre@andrep.de>,
        Andreas Herrmann <herrmann.der.user@gmail.com>,
        Richard Weinberger <richard@nod.at>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Andi Kleen <andi@firstfloor.org>
Subject: Re: [PATCH] x86: Drop 32-bit support ... finally.
Message-ID: <20150401154155.08f796db@lxorguk.ukuu.org.uk>
In-Reply-To: <20150401115803.GA20149@gmail.com>
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	<20150401082156.GA18371@pd.tnic>
	<20150401085600.GG4201@rric.localhost>
	<20150401115803.GA20149@gmail.com>
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> We really don't want to have this unmaintainable mixture of:
> 
> 	128-bit support
> 	 64-bit support (legacy mode)
> 	 32-bit support (compat mode)
> 	 16-bit support (vm86 mode)
> 	  8-bit support (UART mode)
> 
> ... all in the same kernel!

I think a lot of us working on other free Unixlike OS platforms have
reached a similar conclusion. It's a natural segmentation. The final
commit should include the following helpful table


	Bits		Free Unixlike OS
        ---------------------------------
	8bit		FUZIX
	16bit		ELKS
	32bit		NetBSD/FreeBSD
	64bit		Linux

(For 18 and 36bit consult a specialist.. probably a medical one)

Alan
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