From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail172.messagelabs.com (mail172.messagelabs.com [216.82.254.3]) by kanga.kvack.org (Postfix) with SMTP id A5D816B002C for ; Tue, 11 Oct 2011 02:58:10 -0400 (EDT) Received: from euspt2 (mailout2.w1.samsung.com [210.118.77.12]) by mailout2.w1.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTP id <0LSW00K7J3CVKO@mailout2.w1.samsung.com> for linux-mm@kvack.org; Tue, 11 Oct 2011 07:58:07 +0100 (BST) Received: from linux.samsung.com ([106.116.38.10]) by spt2.w1.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTPA id <0LSW00I8O3CVTT@spt2.w1.samsung.com> for linux-mm@kvack.org; Tue, 11 Oct 2011 07:58:07 +0100 (BST) Date: Tue, 11 Oct 2011 08:57:56 +0200 From: Marek Szyprowski Subject: RE: [PATCHv16 0/9] Contiguous Memory Allocator In-reply-to: <20111010155642.38df59af.akpm@linux-foundation.org> Message-id: <00af01cc87e3$1b05e980$5111bc80$%szyprowski@samsung.com> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-language: pl Content-transfer-encoding: 7BIT References: <1317909290-29832-1-git-send-email-m.szyprowski@samsung.com> <201110071827.06366.arnd@arndb.de> <20111010155642.38df59af.akpm@linux-foundation.org> Sender: owner-linux-mm@kvack.org List-ID: To: 'Andrew Morton' , 'Arnd Bergmann' Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org, linux-mm@kvack.org, linaro-mm-sig@lists.linaro.org, 'Michal Nazarewicz' , 'Kyungmin Park' , 'Russell King' , 'KAMEZAWA Hiroyuki' , 'Ankita Garg' , 'Daniel Walker' , 'Mel Gorman' , 'Jesse Barker' , 'Jonathan Corbet' , 'Shariq Hasnain' , 'Chunsang Jeong' , 'Dave Hansen' Hello, On Tuesday, October 11, 2011 12:57 AM Andrew Morton wrote: > On Fri, 7 Oct 2011 18:27:06 +0200 Arnd Bergmann wrote: > > > On Thursday 06 October 2011, Marek Szyprowski wrote: > > > Once again I decided to post an updated version of the Contiguous Memory > > > Allocator patches. > > > > > > This version provides mainly a bugfix for a very rare issue that might > > > have changed migration type of the CMA page blocks resulting in dropping > > > CMA features from the affected page block and causing memory allocation > > > to fail. Also the issue reported by Dave Hansen has been fixed. > > > > > > This version also introduces basic support for x86 architecture, what > > > allows wide testing on KVM/QEMU emulators and all common x86 boxes. I > > > hope this will result in wider testing, comments and easier merging to > > > mainline. > > > > Hi Marek, > > > > I think we need to finally get this into linux-next now, to get some > > broader testing. Having the x86 patch definitely helps here becauses > > it potentially exposes the code to many more testers. > > > > IMHO it would be good to merge the entire series into 3.2, since > > the ARM portion fixes an important bug (double mapping of memory > > ranges with conflicting attributes) that we've lived with for far > > too long, but it really depends on how everyone sees the risk > > for regressions here. If something breaks in unfixable ways before > > the 3.2 release, we can always revert the patches and have another > > try later. > > > > It's also not clear how we should merge it. Ideally the first bunch > > would go through linux-mm, and the architecture specific patches > > through the respective architecture trees, but there is an obvious > > inderdependency between these sets. > > > > Russell, Andrew, are you both comfortable with putting the entire > > set into linux-mm to solve this? Do you see this as 3.2 or rather > > as 3.3 material? > > > > Russell's going to hate me, but... > > I do know that he had substantial objections to at least earlier > versions of this, and he is a guy who knows of what he speaks. I've did my best to fix these issues. I'm still waiting for comments... Best regards -- Marek Szyprowski Samsung Poland R&D Center -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org