From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: One idea to free up page flags on NUMA Date: Sun, 24 Sep 2006 09:24:42 +0200 References: <200609232043.10434.ak@suse.de> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200609240924.42382.ak@suse.de> Sender: owner-linux-mm@kvack.org Return-Path: To: Christoph Lameter Cc: linux-mm@kvack.org, haveblue@us.ibm.com List-ID: On Sunday 24 September 2006 03:57, Christoph Lameter wrote: > On Sat, 23 Sep 2006, Andi Kleen wrote: > > > I just looked at the arch code for i386 and x86_64 and it seems that > > > both already have page tables for all of memory. > > > > i386 doesn't map all of memory. > > Hmmm... It only maps the kernel text segment? Only lowmem (normally upto ~900MB) But virtual memory is very scarce so I don't know where a new map for mem_map would come from. Ok you could try to move the physical location of mem_map to somewhere not in lowmem I suppose. -Andi -- 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