From owner-freebsd-fs@freebsd.org  Mon Feb  1 22:17:16 2016
Return-Path: <owner-freebsd-fs@freebsd.org>
Delivered-To: freebsd-fs@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 78B9BA98D98
 for <freebsd-fs@mailman.ysv.freebsd.org>; Mon,  1 Feb 2016 22:17:16 +0000 (UTC)
 (envelope-from kostikbel@gmail.com)
Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1])
 (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id EB53218CC
 for <freebsd-fs@freebsd.org>; Mon,  1 Feb 2016 22:17:15 +0000 (UTC)
 (envelope-from kostikbel@gmail.com)
Received: from tom.home (kostik@localhost [127.0.0.1])
 by kib.kiev.ua (8.15.2/8.15.2) with ESMTPS id u11MHAYB076440
 (version=TLSv1 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO);
 Tue, 2 Feb 2016 00:17:11 +0200 (EET)
 (envelope-from kostikbel@gmail.com)
DKIM-Filter: OpenDKIM Filter v2.10.3 kib.kiev.ua u11MHAYB076440
Received: (from kostik@localhost)
 by tom.home (8.15.2/8.15.2/Submit) id u11MHAn6076439;
 Tue, 2 Feb 2016 00:17:10 +0200 (EET)
 (envelope-from kostikbel@gmail.com)
X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com
 using -f
Date: Tue, 2 Feb 2016 00:17:10 +0200
From: Konstantin Belousov <kostikbel@gmail.com>
To: Rick Macklem <rmacklem@uoguelph.ca>
Cc: FreeBSD Filesystems <freebsd-fs@freebsd.org>,
 Kirk McKusick <mckusick@mckusick.com>
Subject: Re: panic ffs_truncate3 (maybe fuse being evil)
Message-ID: <20160201221710.GR91220@kib.kiev.ua>
References: <1696608910.154845456.1452438117036.JavaMail.zimbra@uoguelph.ca>
 <20160114092934.GL72455@kib.kiev.ua>
 <964333498.161527381.1452827658163.JavaMail.zimbra@uoguelph.ca>
 <20160115095749.GC3942@kib.kiev.ua>
 <1817287612.162823118.1452909605928.JavaMail.zimbra@uoguelph.ca>
 <20160116191116.GI3942@kib.kiev.ua>
 <853868666.163292727.1452986431921.JavaMail.zimbra@uoguelph.ca>
 <20160117035858.GO3942@kib.kiev.ua>
 <855760730.165482737.1453177516248.JavaMail.zimbra@uoguelph.ca>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <855760730.165482737.1453177516248.JavaMail.zimbra@uoguelph.ca>
User-Agent: Mutt/1.5.24 (2015-08-30)
X-Spam-Status: No, score=-2.0 required=5.0 tests=ALL_TRUSTED,BAYES_00,
 DKIM_ADSP_CUSTOM_MED,FREEMAIL_FROM,NML_ADSP_CUSTOM_MED autolearn=no
 autolearn_force=no version=3.4.1
X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on tom.home
X-BeenThere: freebsd-fs@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: Filesystems <freebsd-fs.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-fs>,
 <mailto:freebsd-fs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-fs/>
List-Post: <mailto:freebsd-fs@freebsd.org>
List-Help: <mailto:freebsd-fs-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
 <mailto:freebsd-fs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 01 Feb 2016 22:17:16 -0000

On Mon, Jan 18, 2016 at 11:25:16PM -0500, Rick Macklem wrote:
> Kostik wrote:
> > On Sat, Jan 16, 2016 at 06:20:31PM -0500, Rick Macklem wrote:
> > > Kostik wrote:
> > > > Was IO_EXT flag passed to the ffs_truncate() invocation where the
> > > > assert ffs_truncate3 fired ?
> > > > 
> > > Yes. The only call to UFS_TRUNCATE() in ufs_inactive() specified both
> > > IO_EXT | IO_NORMAL.
> > 
> > Please try this.
> > 
> Still happens. I put the old panic test in, but with a printf() instead
> of panic() and the printf() happens with this patch.
> Btw, whenever I've looked, the entry is on the clean list.
> No other panics happen and the file system fsck's fine after the test run.

I thought that you posted a stand-alone program which triggered the issue
on non-SU mounts, but I cannot find it.  Does such program exist, or this
is just me misremembering ?