Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030521AbVKPV5Z (ORCPT ); Wed, 16 Nov 2005 16:57:25 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030522AbVKPV5Y (ORCPT ); Wed, 16 Nov 2005 16:57:24 -0500 Received: from pat.uio.no ([129.240.130.16]:39843 "EHLO pat.uio.no") by vger.kernel.org with ESMTP id S1030521AbVKPV5X (ORCPT ); Wed, 16 Nov 2005 16:57:23 -0500 Subject: Re: mmap over nfs leads to excessive system load From: Trond Myklebust To: Kenny Simpson Cc: Andrew Morton , linux-kernel@vger.kernel.org In-Reply-To: <20051116214137.16970.qmail@web34102.mail.mud.yahoo.com> References: <20051116214137.16970.qmail@web34102.mail.mud.yahoo.com> Content-Type: text/plain Date: Wed, 16 Nov 2005 16:57:14 -0500 Message-Id: <1132178234.8811.64.camel@lade.trondhjem.org> Mime-Version: 1.0 X-Mailer: Evolution 2.4.1 Content-Transfer-Encoding: 7bit X-UiO-Spam-info: not spam, SpamAssassin (score=-3.896, required 12, autolearn=disabled, AWL 1.10, UIO_MAIL_IS_INTERNAL -5.00) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 726 Lines: 25 On Wed, 2005-11-16 at 13:41 -0800, Kenny Simpson wrote: > --- Trond Myklebust wrote: > > > > Is this NFSv2? > > > > Cheers, > > Trond > > > This is reproducible with O_DIRECT, but not without. I'm getting lost here. Please could you spell out the testcases that are not working. Are you saying that the combination mmap() + pwrite64() fails on O_DIRECT, but works on ordinary open, and that mmap() + ftruncate64() always works? Cheers, Trond - 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/