From owner-freebsd-fs@FreeBSD.ORG  Sat Dec 11 16:04:39 2010
Return-Path: <owner-freebsd-fs@FreeBSD.ORG>
Delivered-To: freebsd-fs@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id AE1BE1065670
	for <freebsd-fs@freebsd.org>; Sat, 11 Dec 2010 16:04:39 +0000 (UTC)
	(envelope-from antinix@gmail.com)
Received: from mail-qy0-f175.google.com (mail-qy0-f175.google.com
	[209.85.216.175])
	by mx1.freebsd.org (Postfix) with ESMTP id 69D6D8FC0A
	for <freebsd-fs@freebsd.org>; Sat, 11 Dec 2010 16:04:39 +0000 (UTC)
Received: by qyk8 with SMTP id 8so1761345qyk.13
	for <freebsd-fs@freebsd.org>; Sat, 11 Dec 2010 08:04:38 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma;
	h=domainkey-signature:received:mime-version:sender:received:from:date
	:x-google-sender-auth:message-id:subject:cc:content-type;
	bh=WOdvPTVo8f4i6P8gD5yTPM5jicthnBJKsfSaZWNNvN0=;
	b=LD4QKZ3UPzgoueyvE2FhLRGbXOjBKcmaEavEKnoOo1DDT7q9EgQtq6aQHT9IwfTJYH
	Do5sqFQEkjUlXMLzjsrCOGKCSGvADdViLU00nT4Ig52nm1V2Yidz76i3Zb0h0swninoi
	WX7YGvAE1HEwd58tPvONj0mjmK+jDUvlgdjDc=
DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma;
	h=mime-version:sender:from:date:x-google-sender-auth:message-id
	:subject:cc:content-type;
	b=sOTsBgtNhtkvL2emsL+OdNJXqNE77ZXM+fTVt4MTE1cBJfmFvEEXe7ahZNzY1QNA0q
	ch7UDKIVYWwKhBwQk8PMYMZMtvLpsxzRs+Zh80ocLHluDAzY4Tr/e2saPb+KcUMmgb1E
	IDsZ5sCX3+CZrorfkgeav3/dctPb6lIERnP4w=
Received: by 10.229.96.206 with SMTP id i14mr1829530qcn.268.1292082039766;
	Sat, 11 Dec 2010 07:40:39 -0800 (PST)
MIME-Version: 1.0
Sender: antinix@gmail.com
Received: by 10.229.215.77 with HTTP; Sat, 11 Dec 2010 07:40:19 -0800 (PST)
From: Andrei Kolu <antik@bsd.ee>
Date: Sat, 11 Dec 2010 17:40:19 +0200
X-Google-Sender-Auth: RIuAl8ErrA1cvOfE6Ty40ea-i8o
Message-ID: <AANLkTin-rAjbCoNOg-0pwH_N7fu671+1OmMdDJr78ENd@mail.gmail.com>
Cc: freebsd-fs@freebsd.org
Content-Type: text/plain; charset=ISO-8859-1
Subject: zfs scrub error- vdev.too_small
X-BeenThere: freebsd-fs@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Filesystems <freebsd-fs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/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: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
	<mailto:freebsd-fs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 11 Dec 2010 16:04:39 -0000

Stresstesting ZFS:

# cd /home/antik/

Create files:
# mkfile 128m disk1
# mkfile 128m disk2

Create mirror from virtual devices:
# zpool create peegel mirror /home/antik/disk1 /home/antik/disk2

# zpool list
NAME     SIZE   USED  AVAIL    CAP  HEALTH  ALTROOT
peegel   123M  73.5K   123M     0%  ONLINE  -

# zpool status peegel
 pool: peegel
state: ONLINE
scrub: none requested
config:

       NAME                           STATE         READ WRITE CKSUM
       peegel                         ONLINE       0     0     0
         mirror                       ONLINE       0     0     0
           /home/antik/disk1      ONLINE       0     0     0
           /home/antik/disk2      ONLINE       0     0     0

errors: No known data errors

Break one virtual disk:
# dd if=/dev/random of=/home/antik/disk1 bs=512 count=1

# zpool scrub peegel

Last thing I saw on screen was this:

ZFS: vdev failure, zpool=peegel type=vdev.too_small <<this message
does not appear in logs

Dec 11 17:29:09 freenas kernel: Fatal trap 12: page fault while in kernel mode
Dec 11 17:29:09 freenas kernel: cpuid = 0; apic id = 00
Dec 11 17:29:09 freenas kernel: fault virtual address   = 0x0
Dec 11 17:29:09 freenas kernel: fault code              = supervisor
read data, page not present
Dec 11 17:29:09 freenas kernel: instruction pointer     =
0x20:0xffffffff81073b4d
Dec 11 17:29:09 freenas kernel: stack pointer           =
0x28:0xffffff801766c800
Dec 11 17:29:09 freenas kernel: frame pointer           =
0x28:0xffffff801766c8c0
Dec 11 17:29:09 freenas kernel: code segment            = base 0x0,
limit 0xfffff, type 0x1b
Dec 11 17:29:09 freenas kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Dec 11 17:29:09 freenas kernel: processor eflags        = interrupt
enabled, resume, IOPL = 0
Dec 11 17:29:09 freenas kernel: current process         = 1171
(txg_thread_enter)
Dec 11 17:29:09 freenas kernel: trap number             = 12
Dec 11 17:29:09 freenas kernel: panic: page fault
Dec 11 17:29:09 freenas kernel: cpuid = 0
Dec 11 17:29:09 freenas kernel: Uptime: 55s
Dec 11 17:29:09 freenas kernel: Cannot dump. Device not defined or unavailable.
Dec 11 17:29:09 freenas kernel: Automatic reboot in 15 seconds - press
a key on the console to abort
Dec 11 17:29:09 freenas kernel: --> Press a key on the console to reboot,
Dec 11 17:29:09 freenas kernel: --> or switch off the system now.
Dec 11 17:29:09 freenas kernel: Rebooting...
Dec 11 17:29:09 freenas kernel: cpu_reset: Stopping other CPUs
Dec 11 17:29:09 freenas kernel: Copyright (c) 1992-2010 The FreeBSD Project.
Dec 11 17:29:09 freenas kernel: Copyright (c) 1979, 1980, 1983, 1986,
1988, 1989, 1991, 1992, 1993, 1994
Dec 11 17:29:09 freenas kernel: The Regents of the University of
California. All rights reserved.
Dec 11 17:29:09 freenas kernel: FreeBSD is a registered trademark of
The FreeBSD Foundation.
Dec 11 17:29:09 freenas kernel: FreeBSD 8.1-RELEASE-p2 #3: Thu Dec  2
01:50:54 EET 2010


Not a sign about ZFS volumes on my system

# mount
/dev/da0s1a on / (ufs, local)
devfs on /dev (devfs, local, multilabel)
/dev/da0s1e on /tmp (ufs, local, soft-updates)
/dev/da0s1f on /usr (ufs, local, soft-updates)
/dev/da0s1d on /var (ufs, local, soft-updates)

Any attempt to scrub pool fails with kernel panic.