From owner-freebsd-fs@freebsd.org  Thu Mar 23 02:24:09 2017
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 45CD0D18B10;
 Thu, 23 Mar 2017 02:24:09 +0000 (UTC) (envelope-from ler@lerctr.org)
Received: from thebighonker.lerctr.org (thebighonker.lerctr.org
 [IPv6:2001:470:1f0f:3ad:223:7dff:fe9e:6e8a])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client CN "thebighonker.lerctr.org",
 Issuer "COMODO RSA Domain Validation Secure Server CA" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id 243B6C68;
 Thu, 23 Mar 2017 02:24:09 +0000 (UTC) (envelope-from ler@lerctr.org)
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lerctr.org; 
 s=lerami;
 h=Content-transfer-encoding:Content-type:Mime-version:In-Reply-To:
 References:Message-ID:CC:To:From:Subject:Date:Sender:Reply-To:Content-ID:
 Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc
 :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe:
 List-Post:List-Owner:List-Archive;
 bh=MagHtz/1/dXStyIpES//qnzm7uQ41QnNPz3ZFFtcgZg=; b=QX5nJMaLapGtTcRkp1omQNtheQ
 pdoTrotY+/BpKXra6Xa43XgW/MM2ZrG1x0zJHvXdx87eR3yXYrhrIGYvaSI+ivnTuf7BarkhZvMLB
 un/p/sO0aVp1k9H9Lb3yKJivwbLsJB5Q9mbY2zHdUiDUuYXZLFQWOYMULR0+b2MT0v18=;
Received: from [47.220.164.50] (port=25831 helo=[192.168.200.198])
 by thebighonker.lerctr.org with esmtpsa
 (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89 (FreeBSD))
 (envelope-from <ler@lerctr.org>)
 id 1cqsQ4-00069d-4f; Wed, 22 Mar 2017 21:24:08 -0500
User-Agent: Microsoft-MacOutlook/f.20.0.170309
Date: Wed, 22 Mar 2017 21:24:06 -0500
Subject: Re: crash: umount_nfs: Current
From: Larry Rosenman <ler@lerctr.org>
To: Rick Macklem <rmacklem@uoguelph.ca>,
 "freebsd-fs@freebsd.org" <freebsd-fs@freebsd.org>
CC: "freebsd-current@FreeBSD.org" <freebsd-current@FreeBSD.org>
Message-ID: <AAECBA4B-111E-469B-99C0-481F3EB0F58D@lerctr.org>
Thread-Topic: crash: umount_nfs: Current
References: <20170316024433.qiujcewz5bclbgq5@borg.lerctr.org>
 <YTXPR01MB0189ABA592F02FBB9FFC2C9DDD260@YTXPR01MB0189.CANPRD01.PROD.OUTLOOK.COM>
 <A5DCCD5C-F6DE-4C54-A9A6-2A3729808E67@lerctr.org>
 <YTXPR01MB01890E5CFDB2C827F50B0991DD3F0@YTXPR01MB0189.CANPRD01.PROD.OUTLOOK.COM>
In-Reply-To: <YTXPR01MB01890E5CFDB2C827F50B0991DD3F0@YTXPR01MB0189.CANPRD01.PROD.OUTLOOK.COM>
Mime-version: 1.0
Content-type: text/plain;
	charset="UTF-8"
Content-transfer-encoding: quoted-printable
X-BeenThere: freebsd-fs@freebsd.org
X-Mailman-Version: 2.1.23
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: Thu, 23 Mar 2017 02:24:09 -0000

It=E2=80=99s VERY intermittent (=20

I.E. not easy to reproduce.

Sorry.


--=20
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 214-642-9640                 E-Mail: ler@lerctr.org
US Mail: 17716 Limpia Crk, Round Rock, TX 78664-7281
=20
=20

On 3/22/17, 9:20 PM, "Rick Macklem" <rmacklem@uoguelph.ca> wrote:

    Larry Rosenman wrote:
   =20
    > Err, I=E2=80=99m at  r315289=E2=80=A6.
    I think the attached patch (only very lightly tested by me) will fix th=
is crash.
    If you have an easy way to test it, that would be appreciated, rick
   =20
   =20