From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934381AbZIDWMY (ORCPT ); Fri, 4 Sep 2009 18:12:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S934369AbZIDWMX (ORCPT ); Fri, 4 Sep 2009 18:12:23 -0400 Received: from mx2.netapp.com ([216.240.18.37]:47097 "EHLO mx2.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934349AbZIDWMW (ORCPT ); Fri, 4 Sep 2009 18:12:22 -0400 X-IronPort-AV: E=Sophos;i="4.44,335,1249282800"; d="scan'208";a="238035616" Subject: Re: mount.nfs oops [was: mmotm 2009-09-03-16-35 uploaded] From: Trond Myklebust To: Jiri Slaby Cc: linux-kernel@vger.kernel.org, mm-commits@vger.kernel.org, Andrew Morton , linux-nfs@vger.kernel.org In-Reply-To: <4AA17E74.8060100@gmail.com> References: <200909032340.n83Ne6E6004708@imap1.linux-foundation.org> <4AA17E74.8060100@gmail.com> Content-Type: text/plain Content-Transfer-Encoding: 7bit Organization: NetApp Date: Fri, 04 Sep 2009 18:12:17 -0400 Message-Id: <1252102337.5274.4.camel@heimdal.trondhjem.org> Mime-Version: 1.0 X-Mailer: Evolution 2.26.1 X-OriginalArrivalTime: 04 Sep 2009 22:12:18.0262 (UTC) FILETIME=[C4308760:01CA2DAC] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2009-09-04 at 22:54 +0200, Jiri Slaby wrote: > On 09/04/2009 01:40 AM, akpm@linux-foundation.org wrote: > > The mm-of-the-moment snapshot 2009-09-03-16-35 has been uploaded to > > Hi, I got an oops while mounting an nfs: > BUG: unable to handle kernel NULL pointer dereference at 000000000000001d > IP: [] rpcauth_lookupcred+0x4f/0xc0 [sunrpc] This looks like the auth->au_ops->lookup_cred() call failing due to a faulty pointer, which should be impossible. I note that you had a kernel taint due to a warning before this Oops happened. Any details? Also, were you doing anything special at the time (for instance removing a module)? -- Trond Myklebust Linux NFS client maintainer NetApp Trond.Myklebust@netapp.com www.netapp.com