Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 10 Jul 2002 03:56:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 10 Jul 2002 03:56:22 -0400 Received: from parcelfarce.linux.theplanet.co.uk ([195.92.249.252]:7699 "EHLO www.linux.org.uk") by vger.kernel.org with ESMTP id ; Wed, 10 Jul 2002 03:56:21 -0400 Message-ID: <3D2BEAD9.6D7E62C1@zip.com.au> Date: Wed, 10 Jul 2002 01:05:45 -0700 From: Andrew Morton X-Mailer: Mozilla 4.79 [en] (X11; U; Linux 2.4.19-pre9 i686) X-Accept-Language: en MIME-Version: 1.0 To: Roy Sigurd Karlsbakk CC: "Martin J. Bligh" , linux-kernel@vger.kernel.org Subject: Re: [2.4 BUFFERING BUG] (was [BUG] 2.4 VM sucks. Again) References: <200205241004.g4OA4Ul28364@mail.pronto.tv> <1572079531.1022225730@[10.10.2.3]> <3CEE954F.9CB99816@zip.com.au> <200207100950.21084.roy@karlsbakk.net> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 823 Lines: 23 Roy Sigurd Karlsbakk wrote: > > hi > > I've been using the patch below from Andrew for some weeks now, sometimes > under quite heavy load, and find it quite stable. > Wish we knew why. I've tried many times to reproduce the problem which you're seeing. With just two gigs of memory, buffer_heads really cannot explain anything. It's weird. We discussed this in Ottawa - I guess Andrea will add the toss-the-buffers code on the read side (basically the filemap.c stuff). That may be sufficient, but without an understanding of what is going on, it is hard to predict. - - 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/