Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1754978Ab3CKVSm (ORCPT <rfc822;w@1wt.eu>);
	Mon, 11 Mar 2013 17:18:42 -0400
Received: from li9-11.members.linode.com ([67.18.176.11]:52642 "EHLO
	imap.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
	id S1754142Ab3CKVSj (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
	Mon, 11 Mar 2013 17:18:39 -0400
Date: Mon, 11 Mar 2013 17:18:33 -0400
From: "Theodore Ts'o" <tytso@mit.edu>
To: Markus Trippelsdorf <markus@trippelsdorf.de>
Cc: Dave Jones <davej@redhat.com>, linux-ext4@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: torrent hash failures since 3.9.0-rc1
Message-ID: <20130311211833.GC15478@thunk.org>
Mail-Followup-To: Theodore Ts'o <tytso@mit.edu>,
	Markus Trippelsdorf <markus@trippelsdorf.de>,
	Dave Jones <davej@redhat.com>, linux-ext4@vger.kernel.org,
	linux-kernel@vger.kernel.org
References: <20130311171824.GA434@x4>
 <20130311191753.GA439@x4>
 <20130311194159.GB3579@redhat.com>
 <20130311201334.GA444@x4>
 <20130311203738.GB15478@thunk.org>
 <20130311204625.GA433@x4>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20130311204625.GA433@x4>
User-Agent: Mutt/1.5.21 (2010-09-15)
X-SA-Exim-Connect-IP: <locally generated>
X-SA-Exim-Mail-From: tytso@thunk.org
X-SA-Exim-Scanned: No (on imap.thunk.org); SAEximRunCond expanded to false
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
Content-Length: 1451
Lines: 35

On Mon, Mar 11, 2013 at 09:46:25PM +0100, Markus Trippelsdorf wrote:
> > BTW, I'm currently running 3.9-rc2 with some additional fixes from the
> > ext4 dev branch, and I'm not able to reproduce the problem using
> > rtorrent on my laptop.  How reliably is it reproducing for you?  Are
> > you seeing the problem every time you try this?
> 
> Yes, it's 100% reproducible for me. If I boot a 3.8 kernel the issue
> vanishes.

Would you be willing to try an experiment? 

Try pulling down the master branch from the ext4 git tree here:

git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git

This contains all of the ext4 changes which are in 3.9-rc1, based on
top of 3.8-rc3.  See if it reproduces there.  If it does, then it
would tend to confirm the hypothesis that the issue was introduced by
one of the ext4 patches that we merged during the 3.9-rc1 merge
window... and then, since if you can reproduce the problem, if you
could do a git bisect to find the guilty commit, that would really
greatly appreciated.

If you can't reproduce it from the ext4.git tree, then the problem is
probably caused by some other change that was introduced between 3.8
and 3.9-rc1.

Thanks in advance,

					- Ted
--
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/