From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: linux-nfs-owner@vger.kernel.org Received: from smtp.mail.umich.edu ([141.211.14.81]:41827 "EHLO hackers.mr.itd.umich.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755143Ab1KDNVA (ORCPT ); Fri, 4 Nov 2011 09:21:00 -0400 Date: Fri, 4 Nov 2011 09:20:50 -0400 From: Jim Rees To: Lukas Razik Cc: Chuck Lever , Trond Myklebust , Linux NFS Mailing List Subject: Re: [BUG?] Maybe NFS bug since 2.6.37 on SPARC64 Message-ID: <20111104132050.GB13788@umich.edu> References: <1320349396.90614.YahooMailNeo@web24707.mail.ird.yahoo.com> <1320353685.18396.119.camel@lade.trondhjem.org> <20111103211100.GA8393@umich.edu> <1320356241.80563.YahooMailNeo@web24706.mail.ird.yahoo.com> <92DF2E31-FABF-40A5-8F78-89B64363568B@oracle.com> <1320361764.48851.YahooMailNeo@web24708.mail.ird.yahoo.com> <39983D1A-70A8-49A1-A4E2-926637780F75@oracle.com> <1320399858.11675.YahooMailNeo@web24703.mail.ird.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1320399858.11675.YahooMailNeo@web24703.mail.ird.yahoo.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: It's still a mystery to me because I use nfsroot all the time and it works for me. But I was never able to get static addressing to work and have had to depend on the in-kernel dhcp. And I have a different ethernet card that maybe resets faster. I have run into problems later in the boot, when user space remounts the root, but that's not what you're seeing. As for a fix... we're trying to move away from udp transport anyway. Maybe someone should figure out a way to get it to work with tcp? I have zero experience with nfs over udp, at least on linux. Just for fun, have you tried tcp transport (proto=tcp)? As we move toward nfs4 someone will have to give some thought to nfsroot. It's hard to imagine we could put enough nfs4 cruft into the kernel (gssd, idmapd) to make it work.