Return-Path: Received: from mx2.netapp.com ([216.240.18.37]:20510 "EHLO mx2.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754793Ab1DLSip convert rfc822-to-8bit (ORCPT ); Tue, 12 Apr 2011 14:38:45 -0400 Subject: Re: [PATCH] NFS: Fix infinite loop in gss_create_upcall() From: Trond Myklebust To: Jiri Slaby Cc: Bryan Schumaker , Jiri Slaby , linux-kernel@vger.kernel.org, akpm@linux-foundation.org, mm-commits@vger.kernel.org, ML netdev , linux-nfs@vger.kernel.org In-Reply-To: <4DA49B49.1020005@suse.cz> References: <201103312224.p2VMOA5g000983@imap1.linux-foundation.org> <4D96E4C5.2080302@suse.cz> <1302122693.16786.0.camel@lade.trondhjem.org> <4D9D5CC9.2040002@suse.cz> <4DA36722.2020402@suse.cz> <4DA36758.4070203@suse.cz> <4DA36DB6.8060108@suse.cz> <4DA48EB0.40600@netapp.com> <4DA4946D.5020403@suse.cz> <1302633088.4801.48.camel@lade.trondhjem.org> <4DA49B49.1020005@suse.cz> Content-Type: text/plain; charset="UTF-8" Date: Tue, 12 Apr 2011 14:38:42 -0400 Message-ID: <1302633522.4801.49.camel@lade.trondhjem.org> Sender: linux-nfs-owner@vger.kernel.org List-ID: MIME-Version: 1.0 On Tue, 2011-04-12 at 20:34 +0200, Jiri Slaby wrote: > On 04/12/2011 08:31 PM, Trond Myklebust wrote: > >> Yes, it fixes the problem. But it waits 15s before it times out. This is > >> inacceptable for automounted NFS dirs. > > > > I'm still confused as to why you are hitting it at all. In the normal > > autonegotiation case, the client should be trying to use AUTH_SYS first > > and then trying rpcsec_gss if and only if that fails. > > > > Are you really exporting a filesystem using AUTH_NULL as the only > > supported flavour? > > I don't know, I connect to a nfs server which is not maintained by me. > It looks like that. How can I find out? A wireshark trace of a successful mount would help. -- Trond Myklebust Linux NFS client maintainer NetApp Trond.Myklebust@netapp.com www.netapp.com