Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752148AbWCJAlv (ORCPT ); Thu, 9 Mar 2006 19:41:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752136AbWCJAlu (ORCPT ); Thu, 9 Mar 2006 19:41:50 -0500 Received: from mx.pathscale.com ([64.160.42.68]:29582 "EHLO mx.pathscale.com") by vger.kernel.org with ESMTP id S932206AbWCJAgS (ORCPT ); Thu, 9 Mar 2006 19:36:18 -0500 Subject: Re: [PATCH 10 of 20] ipath - support for userspace apps using core driver From: "Bryan O'Sullivan" To: Roland Dreier Cc: rolandd@cisco.com, gregkh@suse.de, akpm@osdl.org, davem@davemloft.net, linux-kernel@vger.kernel.org, openib-general@openib.org In-Reply-To: References: <71644dd19420ddb07a75.1141922823@localhost.localdomain> <1141948516.10693.55.camel@serpentine.pathscale.com> <1141949262.10693.69.camel@serpentine.pathscale.com> Content-Type: text/plain Organization: PathScale, Inc. Date: Thu, 09 Mar 2006 16:36:18 -0800 Message-Id: <1141950978.10693.75.camel@serpentine.pathscale.com> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 512 Lines: 15 On Thu, 2006-03-09 at 16:32 -0800, Roland Dreier wrote: > What's wrong with doing get_page()? Surely the VM won't take pages > that you hold a reference to. We've tried it, but it has apparently not been enough so far. I'll see if I can post an oops report.