Return-Path: linux-nfs-owner@vger.kernel.org Received: from smtp.mail.umich.edu ([141.211.12.86]:44007 "EHLO tombraider.mr.itd.umich.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932299Ab2B1Mq5 (ORCPT ); Tue, 28 Feb 2012 07:46:57 -0500 Date: Tue, 28 Feb 2012 07:46:46 -0500 From: Jim Rees To: Jeff Layton Cc: Harshula , Steve Dickson , NeilBrown , linux-nfs@vger.kernel.org Subject: Re: "Using NFS over UDP on high-speed links such as Gigabit can cause silent data corruption." Message-ID: <20120228124646.GA2528@umich.edu> References: <1330406521.9157.16.camel@serendib> <20120228065218.7e110936@tlielax.poochiereds.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20120228065218.7e110936@tlielax.poochiereds.net> Sender: linux-nfs-owner@vger.kernel.org List-ID: Jeff Layton wrote: On Tue, 28 Feb 2012 16:22:01 +1100 Harshula wrote: > Hi Steve, > > The following openSUSE nfs-utils patch, warn-nfs-udp.patch, is not > included upstream: > > https://build.opensuse.org/package/view_file?file=warn-nfs-udp.patch&package=nfs-utils&project=openSUSE%3AFactory&rev=8e3e60c70e8270cd4afa036e13f6b2bb > > Please consider including it. > > Thanks, > # > I think that patch looks reasonable and clearly documenting the problems with UDP is a wonderful thing. It may be best to send it formally to steved and the list as a real [PATCH] with a real description and SoB line. This feels like the wrong place to document this, since it affects anything that uses udp, not just nfs. It also seems like this should be solved in the network layer with an adaptive frag time. But I'm not volunteering to do that.