From owner-freebsd-stable@FreeBSD.ORG  Tue Oct 24 13:43:50 2006
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
X-Original-To: stable@freebsd.org
Delivered-To: freebsd-stable@FreeBSD.ORG
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id E4FFF16A412
	for <stable@freebsd.org>; Tue, 24 Oct 2006 13:43:50 +0000 (UTC)
	(envelope-from uspoerlein@gmail.com)
Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.174])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 6EF9643D6D
	for <stable@freebsd.org>; Tue, 24 Oct 2006 13:43:45 +0000 (GMT)
	(envelope-from uspoerlein@gmail.com)
Received: by ug-out-1314.google.com with SMTP id m2so1335088uge
	for <stable@freebsd.org>; Tue, 24 Oct 2006 06:43:45 -0700 (PDT)
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com;
	h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition;
	b=MVy7ofnVEevWpsslMBDGm4/xa5pqVzMfUy56LiCubpUYmBh7dZrtVd2p9Vtde+LQiSwDKylYqykH1H3V3ak8i6VevTxKgYWqHlsz+vdoYkd98enxaUVI5mjV99fM6xdSPfS23t8u327GyuJW3QBu9fMshuX7XiRIcbIAtSLLWZ0=
Received: by 10.78.97.7 with SMTP id u7mr9225830hub;
	Tue, 24 Oct 2006 06:43:44 -0700 (PDT)
Received: by 10.78.155.3 with HTTP; Tue, 24 Oct 2006 06:43:44 -0700 (PDT)
Message-ID: <7ad7ddd90610240643n6bea9efbl190fee7437197622@mail.gmail.com>
Date: Tue, 24 Oct 2006 15:43:44 +0200
From: "Ulrich Spoerlein" <uspoerlein@gmail.com>
To: stable@freebsd.org, pjd@freebsd.org
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Cc: 
Subject: panic: softdep_deallocate_dependancies
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/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: Tue, 24 Oct 2006 13:43:51 -0000

Hi,

Following setup: Two identical fileservers connected directly via
their em1 interfaces. Both running RELENG_6 from early October. fs2
exports a 924GB volume via ggated which is imported by fs1.

fs1 spans a gmirror across its da1s2d and this ggate0 (->fs2) device.
It was just rebuilding the gmirror, when I figured, I'd try to backup
all (rather empty) volumes to tape.

So dump(8) was running on the gmirrored filesystem and was in the
process of snapshotting the device.

It did spit out several of these lines
2006-10-24T15:25:34+0200 <kern.crit> fs1 kernel: GEOM_MIRROR: Request
failed (error=5). ggate0[WRITE(offset=1017607733248, length=16384)]
2006-10-24T15:25:34+0200 <kern.crit> fs1 kernel:
g_vfs_done():mirror/share[WRITE(offset=1017607733248,
length=16384)]error = 5
2006-10-24T15:25:34+0200 <kern.crit> fs1 kernel:
g_vfs_done():mirror/share[WRITE(offset=1017800425472,
length=16384)]error = 5
2006-10-24T15:25:34+0200 <kern.crit> fs1 kernel:
g_vfs_done():mirror/share[WRITE(offset=1017993117696,
length=16384)]error = 5
2006-10-24T15:25:34+0200 <kern.crit> fs1 kernel:
g_vfs_done():mirror/share[WRITE(offset=1018185809920,
length=16384)]error = 5

and paniced several seconds later:
panic: softdep_deallocate_dependancies
cpuid = 1

It is an SMP machine, running a rather generic kernel, but with
options QUOTA (quotas are active on a different volume, though). Sadly
no DDB was configured, I'll try to reproduce this.

Is snapshotting/dumping supposed to work on ggate/gmirrored devices?

Uli