Date: Tue, 16 Sep 2003 17:54:46 -0700
From: William Lee Irwin III <wli@holomorphy.com>
To: "Martin J. Bligh" <mbligh@aracnet.com>
Cc: Ben Johnson <ben@blarg.net>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: linear vs. logical addresses?  how does cpu interpret kernel addrs?
Message-ID: <20030917005446.GW4306@holomorphy.com>
Mail-Followup-To: William Lee Irwin III <wli@holomorphy.com>,
	"Martin J. Bligh" <mbligh@aracnet.com>, Ben Johnson <ben@blarg.net>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
References: <20030916154747.A22526@blarg.net> <1562370000.1063759683@[10.10.2.4]>
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At some point in the past, someone had their attribution stripped from:
>> 1) When I am referencing a pointer in the kernel, is the value of that
>> pointer variable interpreted by the cpu as a logical or linear address?
>> 2) if I have two overlapping data/stack segments presently selected,
>> each with a different base, how does the cpu know which segment/base
>> address to use to get the linear address?

On Tue, Sep 16, 2003 at 05:48:04PM -0700, Martin J. Bligh wrote:
> IIRC, all the base segments are 0, so none of this matters ;-)

2.0.x used such things as the segment bits, hardware tasking, and so on.


-- wli
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