Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1162725Ab3DEUyq (ORCPT ); Fri, 5 Apr 2013 16:54:46 -0400 Received: from e32.co.us.ibm.com ([32.97.110.150]:35947 "EHLO e32.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1162068Ab3DEUyp (ORCPT ); Fri, 5 Apr 2013 16:54:45 -0400 Message-ID: <515F3A0F.5030507@linux.vnet.ibm.com> Date: Fri, 05 Apr 2013 16:54:39 -0400 From: "Michael R. Hines" User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130106 Thunderbird/17.0.2 MIME-Version: 1.0 To: Roland Dreier CC: "Michael S. Tsirkin" , Jason Gunthorpe , Sean Hefty , Hal Rosenstock , Yishai Hadas , Christoph Lameter , "linux-rdma@vger.kernel.org" , LKML , qemu-devel@nongnu.org Subject: Re: [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag References: <20130324155153.GA8597@redhat.com> <515F3160.4020007@linux.vnet.ibm.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-MML: No X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13040520-5406-0000-0000-0000072A2FF7 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1171 Lines: 31 To be more specific, here's what I did: 1. apply kernel module patch - re-insert module 1. QEMU does: ibv_reg_mr(........IBV_ACCESS_GIFT | IBV_ACCESS_REMOTE_READ) 2. Start the RDMA migration 3. Migration completes without any errors This test does *not* work with a cgroup swap limit, however. The process gets killed. (Both with and without GIFT) - Michael On 04/05/2013 04:43 PM, Roland Dreier wrote: > On Fri, Apr 5, 2013 at 1:17 PM, Michael R. Hines > wrote: >> I also removed the IBV_*_WRITE flags on the sender-side and activated >> cgroups with the "memory.memsw.limit_in_bytes" activated and the migration >> with RDMA also succeeded without any problems (both with *and* without GIFT >> also worked). > Not sure I'm interpreting this correctly. Are you saying that things > worked without actually setting the GIFT flag? In which case why are > we adding this flag? > > - R. > -- 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/