Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262130AbVDRQrP (ORCPT ); Mon, 18 Apr 2005 12:47:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262125AbVDRQrP (ORCPT ); Mon, 18 Apr 2005 12:47:15 -0400 Received: from rrcs-24-227-247-8.sw.biz.rr.com ([24.227.247.8]:43163 "EHLO emachine.austin.ammasso.com") by vger.kernel.org with ESMTP id S262130AbVDRQq7 (ORCPT ); Mon, 18 Apr 2005 12:46:59 -0400 Message-ID: <4263E445.8000605@ammasso.com> Date: Mon, 18 Apr 2005 11:45:57 -0500 From: Timur Tabi Organization: Ammasso User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041217 X-Accept-Language: en-us, en, en-gb MIME-Version: 1.0 To: Christoph Hellwig CC: Andrew Morton , Roland Dreier , hozer@hozed.org, linux-kernel@vger.kernel.org, openib-general@openib.org Subject: Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation References: <200544159.Ahk9l0puXy39U6u6@topspin.com> <20050411142213.GC26127@kalmia.hozed.org> <52mzs51g5g.fsf@topspin.com> <20050411163342.GE26127@kalmia.hozed.org> <5264yt1cbu.fsf@topspin.com> <20050411180107.GF26127@kalmia.hozed.org> <52oeclyyw3.fsf@topspin.com> <20050411171347.7e05859f.akpm@osdl.org> <4263DEC5.5080909@ammasso.com> <20050418164316.GA27697@infradead.org> In-Reply-To: <20050418164316.GA27697@infradead.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1015 Lines: 26 Christoph Hellwig wrote: > On Mon, Apr 18, 2005 at 11:22:29AM -0500, Timur Tabi wrote: > >>That's not what we're seeing. We have hardware that does DMA over the >>network (much like the Infiniband stuff), and we have a testcase that fails >>if get_user_pages() is used, but not if mlock() is used. > > > If you don't share your testcase it's unlikely to be fixed. As I said, the testcase only works with our hardware, and it's also very large. It's one small test that's part of a huge test suite. It takes a couple hours just to install the damn thing. We want to produce a simpler test case that demonstrates the problem in an easy-to-understand manner, but we don't have time to do that now. -- Timur Tabi Staff Software Engineer timur.tabi@ammasso.com - 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/