From owner-freebsd-stable@FreeBSD.ORG  Fri Mar 21 07:11:11 2014
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 591CB32B;
 Fri, 21 Mar 2014 07:11:11 +0000 (UTC)
Received: from kabab.cs.huji.ac.il (kabab.cs.huji.ac.il [132.65.116.12])
 (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by mx1.freebsd.org (Postfix) with ESMTPS id 68C33205;
 Fri, 21 Mar 2014 07:11:10 +0000 (UTC)
Received: from th-04.cs.huji.ac.il ([132.65.80.125])
 by kabab.cs.huji.ac.il with esmtp
 id 1WQtbd-000OzM-7h; Fri, 21 Mar 2014 09:11:05 +0200
Mime-Version: 1.0 (Mac OS X Mail 7.2 \(1874\))
Subject: Re: nfsd panic
From: Daniel Braniss <danny@cs.huji.ac.il>
In-Reply-To: <532B3FF7.1030405@FreeBSD.org>
Date: Fri, 21 Mar 2014 09:11:04 +0200
Message-Id: <9E40826A-1850-467E-A7F7-A662063CE36E@cs.huji.ac.il>
References: <50E659BE-3E1A-41D6-B522-9452093CEE26@cs.huji.ac.il>
 <201403201108.09700.jhb@freebsd.org> <532B3FF7.1030405@FreeBSD.org>
To: Alexander Motin <mav@freebsd.org>
X-Mailer: Apple Mail (2.1874)
Content-Type: text/plain;
	charset=windows-1252
Content-Transfer-Encoding: quoted-printable
X-Content-Filtered-By: Mailman/MimeDel 2.1.17
Cc: Rick Macklem <rmacklem@uoguelph.ca>, freebsd-stable@freebsd.org,
 John Baldwin <jhb@freebsd.org>
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable/>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 21 Mar 2014 07:11:11 -0000


On Mar 20, 2014, at 9:22 PM, Alexander Motin <mav@freebsd.org> wrote:

> On 20.03.2014 17:08, John Baldwin wrote:
>> On Thursday, March 20, 2014 8:35:37 am Daniel Braniss wrote:
>>> this host has been doing fine, but today it=92s constantly crashing =
in nfsd
>>> it=92s exporting a 32TB zfs via nfs, to several hungry hosts
>>> any help is appreciated since this is a production server and some =
user are
>>> not very happy :-)
>>>=20
>>> http://www.cs.huji.ac.il/~danny/core.txt.7
>>=20
>> I think the pool->sp_lock mutex is not locked.  Can you go to frame 8 =
in kgdb
>> and do 'p *m=92?

(kgdb) frame 8
#8  0xffffffff808cf25a in _mtx_unlock_sleep (m=3D0xfffffe002c132400,=20
    opts=3D<value optimized out>, file=3D<value optimized out>,=20
    line=3D<value optimized out>) at =
/r+d/stable/9/sys/kern/kern_mutex.c:716
716     /r+d/stable/9/sys/kern/kern_mutex.c: No such file or directory.
        in /r+d/stable/9/sys/kern/kern_mutex.c
(kgdb) p *m
$1 =3D {lock_object =3D {lo_name =3D 0xffffffff80f5d757 "sp_lock",=20
    lo_flags =3D 16973824, lo_data =3D 0, lo_witness =3D 0x0}, mtx_lock =
=3D 4}
>=20
> Daniel, your system looks like updated on February 2, but there was =
alike bug fixed in stable/9 on February 7 (r261578). Please try to =
update your system.
>=20
I did and now it=92s ok again - though will have to wait till traffic =
picks up again next week
thanks,
	danny

> --=20
> Alexander Motin

thanks to you all,
	danny