Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757517Ab1BKRnQ (ORCPT ); Fri, 11 Feb 2011 12:43:16 -0500 Received: from fieldses.org ([174.143.236.118]:49447 "EHLO fieldses.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756595Ab1BKRnP (ORCPT ); Fri, 11 Feb 2011 12:43:15 -0500 Date: Fri, 11 Feb 2011 12:43:12 -0500 From: "J. Bruce Fields" To: Takashi Iwai Cc: Tino Keitel , Neil Brown , Trond Myklebust , linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: 2.6.38-rc3: kernel BUG at fs/nfsd/nfs4state.c:3132! Message-ID: <20110211174312.GH3005@fieldses.org> References: <20110211152112.GA3005@fieldses.org> <20110211153702.GC3005@fieldses.org> <20110211160532.GD3005@fieldses.org> <20110211170036.GF3005@fieldses.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110211170036.GF3005@fieldses.org> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2618 Lines: 66 On Fri, Feb 11, 2011 at 12:00:36PM -0500, J. Bruce Fields wrote: > On Fri, Feb 11, 2011 at 05:59:44PM +0100, Takashi Iwai wrote: > > At Fri, 11 Feb 2011 17:57:21 +0100, > > Takashi Iwai wrote: > > > > > > At Fri, 11 Feb 2011 17:12:33 +0100, > > > Takashi Iwai wrote: > > > > > > > > At Fri, 11 Feb 2011 11:05:32 -0500, > > > > J. Bruce Fields wrote: > > > > > > > > > > On Fri, Feb 11, 2011 at 05:01:18PM +0100, Takashi Iwai wrote: > > > > > > At Fri, 11 Feb 2011 10:37:02 -0500, > > > > > > J. Bruce Fields wrote: > > > > > > > > > > > > > > On Fri, Feb 11, 2011 at 04:29:56PM +0100, Takashi Iwai wrote: > > > > > > > > At Fri, 11 Feb 2011 10:21:12 -0500, > > > > > > > > J. Bruce Fields wrote: > > > > > > > > > Again, 2.6.38-rc4 does not have a BUG() on line 3132. Could you post > > > > > > > > > the full oops message from your machine? > > > > > > > > > > > > > > > > Well, on vanilla 2.6.38-rc4, it's in nfs4_preprocess_stateid_op(): > > > > > > > > if (filpp) { > > > > > > > > *filpp = find_readable_file(dp->dl_file); > > > > > > > > ==> BUG_ON(!*filpp); > > > > > > > > } > > > > > > > > > > > > > > Oh good grief, my apologies--I mistyped "38" as "28"! > > > > > > > > > > > > > > This looks like it could be a known delegation bug.... Would it be > > > > > > > possible for you to check whether this is reproduceable on > > > > > > > > > > > > > > git://linux-nfs.org/~bfields/topics.git for-2.6.38-incoming > > > > > > > > > > > > Hm, I couldn't pull it. > > > > > > > > > > > > % git pull 'git://linux-nfs.org/~bfields/topics.git' for-2.6.38-incoming > > > > > > fatal: The remote end hung up unexpectedly > > > > > > > > > > Should be linux-topics, apologies again: > > > > > > > > > > git://linux-nfs.org/~bfields/linux-topics.git for-2.6.38-incoming > > > > > > > > Thanks. I'm going to give it a try now. > > > > > > Looks good so far. I'll let you know if it's triggered again. > > > > Argh, too early to say. Now I got the same one. > > > > It seems that it's triggered when I start Firefox on NFS client > > machine. > > OK, thanks, I'll take a look. I think I see the problem.... Could you try fetching that branch again? git://linux-nfs.org/~bfields/linux-topics.git for-2.6.38-incoming (But I've only tested that it compiles so far.) --b. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/