From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 22 May 2007 09:58:36 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [rfc] increase struct page size?! Message-Id: <20070522095836.c01263ba.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: References: <20070518040854.GA15654@wotan.suse.de> <464FCA28.9040009@cosmosbay.com> <200705201456.26283.ak@suse.de> <20070522093050.0320d092.kamezawa.hiroyu@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Christoph Lameter Cc: ak@suse.de, dada1@cosmosbay.com, wli@holomorphy.com, npiggin@suse.de, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org List-ID: On Mon, 21 May 2007 17:38:58 -0700 (PDT) Christoph Lameter wrote: > On Tue, 22 May 2007, KAMEZAWA Hiroyuki wrote: > > > For i386(32bit arch), there is not enough space for vmemmap. > > I thought 32 bit would use flatmem? Is memory really sparse on 32 > bit? Likely difficult due to lack of address space? > Of course, i386 can use flatmem. I am just afraid that memory hotplug is just for sprasemem. But I also think we can add memory-hotplug for flatmem if necessary. (I myself have no plan now. I wonder memory power-save-mode may be supported by chipsets.) -Kame -- 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