From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 12 Sep 2007 12:17:41 -0700 (PDT) From: Christoph Lameter Subject: Re: [RFC][PATCH] overwride page->mapping [0/3] intro In-Reply-To: <46E83A19.2090604@google.com> Message-ID: References: <20070912114322.e4d8a86e.kamezawa.hiroyu@jp.fujitsu.com> <46E7A666.7080409@linux.vnet.ibm.com> <46E83A19.2090604@google.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Martin Bligh Cc: Balbir Singh , KAMEZAWA Hiroyuki , "linux-mm@kvack.org" , "nickpiggin@yahoo.com.au" , "Lee.Schermerhorn@hp.com" , Andrew Morton List-ID: On Wed, 12 Sep 2007, Martin Bligh wrote: > Because nobody (sane) has 16TB of memory? ;-) Both our IA64 and the upcoming x86_64 line have the capability to address more than 16TB of memory. include/asm-ia64/sparsemem.h has #define MAX_PHYSMEM_BITS (50) (which is too low. We may have 4 Petabytes configurations sson so we want this to be 54 or so) and we are working on increasing x86_64 .... -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org