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

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Date:	Fri, 24 Aug 2012 11:17:20 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Brian Gerst <brgerst@...il.com>
CC:	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 08/23/2012 11:54 AM, Brian Gerst wrote:
> 
>> - wastes time of developers who can spend their time supporting X32
>> instead of x86-32 or support x86-64 only as 99% of users will be able
>> to run x86-64 software if x86-32 will be dropped
> 
> The x86-32 arch is mature and well maintained, and shares so much in
> common with x86-64, that there is little to be gained by dropping
> kernel support.
> 

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.

Dropping x86-32 support is decades away.

	-hpa

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