From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751455Ab2I0QQa (ORCPT ); Thu, 27 Sep 2012 12:16:30 -0400 Received: from mx2.netapp.com ([216.240.18.37]:45654 "EHLO mx2.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751012Ab2I0QQ3 (ORCPT ); Thu, 27 Sep 2012 12:16:29 -0400 X-IronPort-AV: E=Sophos;i="4.80,496,1344236400"; d="scan'208";a="694885684" From: "Myklebust, Trond" To: Joerg Roedel CC: Joerg Roedel , "linux-nfs@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "torvalds@linux-foundation.org" Subject: Re: kernel BUG at /data/lemmy/linux.trees.git/fs/nfs/idmap.c:681! Thread-Topic: kernel BUG at /data/lemmy/linux.trees.git/fs/nfs/idmap.c:681! Thread-Index: AQHNdKJvypEw9t3CEUmeaLKAlM+spZefC3UA//+TOzCAAHnyAIAACk6A Date: Thu, 27 Sep 2012 16:16:25 +0000 Message-ID: <4FA345DA4F4AE44899BD2B03EEEC2FA908FEF7A3@SACEXCMBX04-PRD.hq.netapp.com> References: <20120807134156.GP1996@amd.com> <20120927145217.GA18962@8bytes.org> <4FA345DA4F4AE44899BD2B03EEEC2FA908FEF572@SACEXCMBX04-PRD.hq.netapp.com> <20120927153928.GB18962@8bytes.org> In-Reply-To: <20120927153928.GB18962@8bytes.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.104.60.116] Content-Type: text/plain; charset="utf-8" Content-ID: MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id q8RGGcdB005906 On Thu, 2012-09-27 at 17:39 +0200, Joerg Roedel wrote: > On Thu, Sep 27, 2012 at 03:32:02PM +0000, Myklebust, Trond wrote: > > > Does your checked out copy of 3.6-rc7 contain commit c50669 (NFS: > > Clear key construction data if the idmap upcall fails)? The latter was > > merged in3.6-rc3, and is reported to fix the problem for the other > > testers. > > Yes, it contains that commit. I was about to test plain v3.6-rc7 without > my patches (not nfs related, of cource) on-top, but unfortunatly the > disk with the root-fs died :-/ > I am about to set up the box again and test plain -rc7. Please do. I cannot see how that BUG_ON can be triggered in the current code, given that the only place where idmap->idmap_key_cons is set to a non-NULL value is covered by a mutex, and that it is always cleared before we release said mutex. -- Trond Myklebust Linux NFS client maintainer NetApp Trond.Myklebust@netapp.com www.netapp.com {.n++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I