From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <44705291.9070105@yahoo.com.au> Date: Sun, 21 May 2006 21:44:17 +1000 From: Nick Piggin MIME-Version: 1.0 Subject: Re: [patch 2/2] mm: handle unaligned zones References: <4470232B.7040802@yahoo.com.au> <44702358.1090801@yahoo.com.au> <20060521021905.0f73e01a.akpm@osdl.org> <4470417F.2000605@yahoo.com.au> <20060521035906.3a9997b0.akpm@osdl.org> In-Reply-To: <20060521035906.3a9997b0.akpm@osdl.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: apw@shadowen.org, mel@csn.ul.ie, stable@kernel.org, linux-mm@kvack.org List-ID: Andrew Morton wrote: > How about just throwing the pages away? It sounds like a pretty rare > problem. Well that's what many architectures will end up doing, yes. But on small or embedded platforms, 4MB - 1 is a whole lot of memory to be throwing away. Also, I'm not sure it is something we can be doing in generic code, because some architectures apparently have very strange zone setups (eg. zones from several pages interleaved within a single zone's ->spanned_pages). So it doesn't sound like a simple matter of trying to override the zones' intervals. -- SUSE Labs, Novell Inc. Send instant messages to your online friends http://au.messenger.yahoo.com -- 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