From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 3 May 2002 07:28:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 3 May 2002 07:28:39 -0400 Received: from penguin.e-mind.com ([195.223.140.120]:31330 "EHLO penguin.e-mind.com") by vger.kernel.org with ESMTP id ; Fri, 3 May 2002 07:28:38 -0400 Date: Fri, 3 May 2002 13:27:34 +0200 From: Andrea Arcangeli To: William Lee Irwin III , "Martin J. Bligh" , Daniel Phillips , linux-kernel@vger.kernel.org Subject: Re: Bug: Discontigmem virt_to_page() [Alpha,ARM,Mips64?] Message-ID: <20020503132734.V11414@dualathlon.random> In-Reply-To: <20020502180632.I11414@dualathlon.random> <3972036796.1020330599@[10.10.2.3]> <20020502184037.J11414@dualathlon.random> <20020502171655.GJ32767@holomorphy.com> <20020502204136.M11414@dualathlon.random> <20020502191903.GL32767@holomorphy.com> <20020503080433.R11414@dualathlon.random> <20020503092426.GH24506@holomorphy.com> <20020503123009.P11414@dualathlon.random> <20020503110950.GI24506@holomorphy.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.22.1i X-GnuPG-Key-URL: http://e-mind.com/~andrea/aa.gnupg.asc X-PGP-Key-URL: http://e-mind.com/~andrea/aa.asc Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, May 03, 2002 at 04:09:51AM -0700, William Lee Irwin III wrote: > page. A clean, perhaps even mergeable design for this would be a great > boon to all users of larger highmem systems. IIRC buffer_heads were the > specific reported problem, and though they themselves consume excessive bh problems should be fixed with my latest vm updates, while it's nice to cache the bh across multiple writes, it's not a big problem having to ask the fs again to translate from logical to physical so dropping bh aggressively when needed is ok and the right thing to do. > Andrea, it might also be helpful to hear your input during the LSE > conference call tomorrow. The topic is KVA exhaustion scenarios, which > seem to be of interest to you as well. ok. Andrea