From owner-freebsd-current@FreeBSD.ORG  Wed May  6 08:22:41 2009
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 49398106567B
	for <current@freebsd.org>; Wed,  6 May 2009 08:22:41 +0000 (UTC)
	(envelope-from Achim_Leubner@adaptec.com)
Received: from mail-gw3.adaptec.com (ts.adaptec.com [162.62.93.58])
	by mx1.freebsd.org (Postfix) with ESMTP id 2AA5D8FC19
	for <current@freebsd.org>; Wed,  6 May 2009 08:22:38 +0000 (UTC)
	(envelope-from Achim_Leubner@adaptec.com)
Received: from ADPE2K702.adaptec.com (adpe2k702.adaptec.com [10.25.8.26])
	by mail-gw3.adaptec.com (Spam Firewall) with ESMTP
	id 5990A2C3E5F; Wed,  6 May 2009 01:04:37 -0700 (PDT)
Received: from ADPE2K703.adaptec.com ([10.25.8.22]) by ADPE2K702.adaptec.com
	([10.25.8.26]) with mapi; Wed, 6 May 2009 01:04:37 -0700
From: "Leubner, Achim" <Achim_Leubner@adaptec.com>
To: Ed Maste <emaste@phaedrus.sandvine.ca>, Scott Long <scottl@samsco.org>
Date: Wed, 6 May 2009 01:04:34 -0700
Thread-Topic: softdep_move_dependencies panic
Thread-Index: AcnOIUrnZ74iDoM2TJSMQhruAukIdg==
Message-ID: <532ABFBDAAC3A34EB12EBA6CEC2838F4020B67FCE8@ADPE2K703.adaptec.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach: 
X-MS-TNEF-Correlator: 
acceptlanguage: en-US
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
X-Content-Filtered-By: Mailman/MimeDel 2.1.5
Cc: "current@freebsd.org" <current@freebsd.org>, "Sridaran,
	Gana" <Ganapathy_Sridaran@adaptec.com>
Subject: softdep_move_dependencies panic
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 06 May 2009 08:22:41 -0000

Hi Ed, Hi Scott,

We run into a problem if a RAID array goes into an "error" state and is mar=
ked "offline". The new aac driver removes the device in this case with devi=
ce_delete_child() and all commands to that device will be answered using bi=
odone() with flag BIO_ERROR and error EINVAL. But this causes a "softdep_mo=
ve_dependencies: need merge code" panic in the filesystem. Is there any pos=
sibility to avoid this panic? We see it under FreeBSD 7.1 too.
Any help is greatly appreciated.

Thanks & Regards,
Achim


=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D

Achim Leubner

Software Engineer / RAID drivers

ICP vortex GmbH / Adaptec Inc.

Phone: +49-351-8718291