Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751619Ab2KPTvc (ORCPT ); Fri, 16 Nov 2012 14:51:32 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:44624 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751145Ab2KPTvb (ORCPT ); Fri, 16 Nov 2012 14:51:31 -0500 Date: Fri, 16 Nov 2012 11:51:24 -0800 From: Andrew Morton To: Josh Boyer Cc: Mel Gorman , Zdenek Kabelac , Seth Jennings , Jiri Slaby , Valdis.Kletnieks@vt.edu, Jiri Slaby , linux-mm@kvack.org, LKML , Rik van Riel , Robert Jennings Subject: Re: [PATCH] Revert "mm: remove __GFP_NO_KSWAPD" Message-Id: <20121116115124.c2981abc.akpm@linux-foundation.org> In-Reply-To: References: <20121012135726.GY29125@suse.de> <507BDD45.1070705@suse.cz> <20121015110937.GE29125@suse.de> <5093A3F4.8090108@redhat.com> <5093A631.5020209@suse.cz> <509422C3.1000803@suse.cz> <509C84ED.8090605@linux.vnet.ibm.com> <509CB9D1.6060704@redhat.com> <20121109090635.GG8218@suse.de> <509F6C2A.9060502@redhat.com> <20121112113731.GS8218@suse.de> X-Mailer: Sylpheed 3.0.2 (GTK+ 2.20.1; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1329 Lines: 28 On Fri, 16 Nov 2012 14:14:47 -0500 Josh Boyer wrote: > > The temptation is to supply a patch that checks if kswapd was woken for > > THP and if so ignore pgdat->kswapd_max_order but it'll be a hack and not > > backed up by proper testing. As 3.7 is very close to release and this is > > not a bug we should release with, a safer path is to revert "mm: remove > > __GFP_NO_KSWAPD" for now and revisit it with the view to ironing out the > > balance_pgdat() logic in general. > > > > Signed-off-by: Mel Gorman > > Does anyone know if this is queued to go into 3.7 somewhere? I looked > a bit and can't find it in a tree. We have a few reports of Fedora > rawhide users hitting this. Still thinking about it. We're reverting quite a lot of material lately. mm-revert-mm-vmscan-scale-number-of-pages-reclaimed-by-reclaim-compaction-based-on-failures.patch and revert-mm-fix-up-zone-present-pages.patch are queued for 3.7. I'll toss this one in there as well, but I can't say I'm feeling terribly confident. How is Valdis's machine nowadays? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/