From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 5 Feb 2008 14:31:50 +0000 From: Mel Gorman Subject: Re: [2.6.24-rc8-mm1][regression?] numactl --interleave=all doesn't works on memoryless node. Message-ID: <20080205143149.GA4207@csn.ul.ie> References: <20080202165054.F491.KOSAKI.MOTOHIRO@jp.fujitsu.com> <20080202090914.GA27723@one.firstfloor.org> <20080202180536.F494.KOSAKI.MOTOHIRO@jp.fujitsu.com> <1202149243.5028.61.camel@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: <1202149243.5028.61.camel@localhost> Sender: owner-linux-mm@kvack.org Return-Path: To: Lee Schermerhorn Cc: KOSAKI Motohiro , Andi Kleen , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrew Morton , Christoph Lameter , Paul Jackson , David Rientjes List-ID: On (04/02/08 13:20), Lee Schermerhorn didst pronounce: > > > When the kernel behaviour changes and breaks user space then the kernel > > > is usually wrong. Cc'ed Lee S. who maintains the kernel code now. > > The memoryless nodes patch series changed a lot of things, so just > reverting this one area [mpol_check_policy()] probably won't restore the > prior behavior. A fully populated node mask is not necessarily a proper > subset of node_online_map(). And contextualize_policy() also requires > the mask to be a subset of mems_allowed which also defaults to nodes > with memory. > > I don't know how Mel Gorman's "two zonelist" series, which is still > awaiting a window into the -mm tree, affects this behavior. Those > patches will certainly be affected by whatever we decide here. > I doubt they'd make a difference to this particular problem. -- Mel Gorman Part-time Phd Student Linux Technology Center University of Limerick IBM Dublin Software Lab -- 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