From owner-freebsd-stable@FreeBSD.ORG  Wed Jun 19 15:02:21 2013
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by hub.freebsd.org (Postfix) with ESMTP id E3322915
 for <freebsd-stable@freebsd.org>; Wed, 19 Jun 2013 15:02:21 +0000 (UTC)
 (envelope-from dk@neveragain.de)
Received: from mail.neveragain.de (hobbit.neveragain.de [217.69.77.34])
 by mx1.freebsd.org (Postfix) with ESMTP id AA769188F
 for <freebsd-stable@freebsd.org>; Wed, 19 Jun 2013 15:02:21 +0000 (UTC)
Received: from dottie.dus.openit.net (dottie.dus.openit.net
 [IPv6:2001:aa8:fff3::fffd])
 (using TLSv1 with cipher AES128-SHA (128/128 bits))
 (No client certificate requested)
 by mail.neveragain.de (Postfix) with ESMTPSA id 8AAFA110A9;
 Wed, 19 Jun 2013 17:02:20 +0200 (CEST)
Subject: Re: Weird I/O hangs (9.1R, arcsas, interrupt spikes on uhci0)
Mime-Version: 1.0 (Apple Message framework v1283)
Content-Type: text/plain; charset=iso-8859-1
From: =?iso-8859-1?Q?Dennis_K=F6gel?= <dk@neveragain.de>
X-Priority: 3
In-Reply-To: <15E6A1D4AB1D43D49C1DA02EAF463126@multiplay.co.uk>
Date: Wed, 19 Jun 2013 17:02:20 +0200
Content-Transfer-Encoding: quoted-printable
Message-Id: <27EED7A0-AB0B-43B5-8B7F-B424852DBD65@neveragain.de>
References: <C2AA9591-CBF4-4956-BABE-08BD8994FF8C@neveragain.de>
 <op.wyxg11zc8527sy@ronaldradial.versatec.local>
 <FD9290D8-1A12-4F28-816B-94EFB4516DA4@neveragain.de>
 <EA2D201C731C46CB8F7BE4972847A53B@multiplay.co.uk>
 <B199EA9B-6E1C-4B1A-A8F3-4574FF61AEC0@neveragain.de>
 <15E6A1D4AB1D43D49C1DA02EAF463126@multiplay.co.uk>
To: Steven Hartland <killing@multiplay.co.uk>
X-Mailer: Apple Mail (2.1283)
Cc: freebsd-stable@freebsd.org, Ronald Klop <ronald-freebsd8@klop.yi.org>
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.14
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: Wed, 19 Jun 2013 15:02:22 -0000

Am 19.06.2013 um 16:47 schrieb Steven Hartland:
> I'm not familar with that model of the areca but have you tried
> with the standard OS driver or does it not support that card?

The ARC1320 (non-raid) unfortunately isn't supported by the in-tree =
driver.

> Also when you see hangs can you access the disk directly or not
> e.g. dd if=3D/dev/da0 of=3D/dev/null bs=3D1m count=3D10 ?

Interesting idea. The dd then hangs right until everything else resumes =
as well.

^T during hang says: load: 12.39  cmd: dd 7847 [physrd] 6.36r 0.00u =
0.00s 0% 1632k