From: "Stephen C. Tweedie" <sct@redhat.com>
To: Daniel Blakeley <daniel@msc.cornell.edu>
Cc: linux-mm@kvack.org, Stephen Tweedie <sct@redhat.com>
Subject: Re: Large memory system
Date: Mon, 8 Feb 1999 11:22:15 GMT [thread overview]
Message-ID: <199902081122.LAA02263@dax.scot.redhat.com> (raw)
In-Reply-To: <19990130083631.B9427@msc.cornell.edu>
Hi,
On Sat, 30 Jan 1999 08:36:31 -0500, Daniel Blakeley
<daniel@msc.cornell.edu> said:
> I've jumped the gun a little bit and recommended a Professor buy 4GB
> of RAM on a Xeon machine to run Linux on and he did. After he got it
> I read the large memory howto which states that the max memory size
> for Linux 2.2.x is 2GB physical/2GB virtual. The memory size seems to
> limited by the 32bit nature of the x86 architecture. The Xeon seems
> to have a 36bit memory addressing mode. Can Linux be easily expanded
> to use the 36bit addressing?
It's not exactly trivial, but it can (and will) be done. For now, you
can only use 4G on a 64-bit architecture (Alpha or Sparc64), but
basically we know how to address it on Intel too, transparently to the
user.
--Stephen
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next prev parent reply other threads:[~1999-02-08 11:22 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-01-30 13:36 Daniel Blakeley
1999-01-30 17:00 ` Benjamin C.R. LaHaise
1999-02-08 11:24 ` Stephen C. Tweedie
1999-02-08 15:31 ` Eric W. Biederman
1999-02-09 22:57 ` Stephen C. Tweedie
1999-02-01 15:59 ` Rik van Riel
1999-02-08 11:22 ` Stephen C. Tweedie [this message]
1999-02-08 20:33 Manfred Spraul
1999-02-10 14:25 ` Stephen C. Tweedie
1999-02-10 17:02 Manfred Spraul
1999-02-11 11:12 ` Stephen C. Tweedie
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