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From: Martin Steigerwald <ms@teamix.de>
To: linux-kernel@vger.kernel.org
Subject: physical memory limit of 64-bit linux
Date: Tue, 16 Dec 2008 15:56:19 +0100	[thread overview]
Message-ID: <200812161556.25518.ms@teamix.de> (raw)

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Hi!

What is the physical memory limit for 64-bit Linux? I read about 40 bit 
address bus for AMD Athlon X2 (1 TB) and 48 bit for Barcelona X4 (256 TB).

Is 64-bit linux able to use that amount - provided that one would manage to 
build it into a machine? Or does it have a lower limit?

Looking into the Google crystal ball gives unclear pictures... I tend to 
assume that Linux would handle it, but I am not sure.

Ciao,
-- 
Martin Steigerwald - team(ix) GmbH - http://www.teamix.de
gpg: 19E3 8D42 896F D004 08AC A0CA 1E10 C593 0399 AE90

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             reply	other threads:[~2008-12-16 14:56 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-16 14:56 Martin Steigerwald [this message]
2008-12-16 15:54 ` physical memory limit of 64-bit linux Rafael J. Wysocki
2008-12-16 16:44   ` Andi Kleen
2008-12-17 14:12     ` Martin Steigerwald
2008-12-16 18:47   ` Ingo Molnar
2008-12-16 19:07     ` Jeremy Fitzhardinge
2008-12-16 19:23       ` Ingo Molnar
2008-12-16 19:28     ` Andi Kleen
2008-12-17 14:30     ` Martin Steigerwald

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