From owner-freebsd-current@FreeBSD.ORG  Thu Sep 15 15:30:39 2011
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 6C9AA106566B;
	Thu, 15 Sep 2011 15:30:39 +0000 (UTC)
	(envelope-from matt.thyer@gmail.com)
Received: from mail-wy0-f182.google.com (mail-wy0-f182.google.com
	[74.125.82.182])
	by mx1.freebsd.org (Postfix) with ESMTP id CECB78FC17;
	Thu, 15 Sep 2011 15:30:38 +0000 (UTC)
Received: by wyh15 with SMTP id 15so3768757wyh.13
	for <multiple recipients>; Thu, 15 Sep 2011 08:30:37 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma;
	h=mime-version:in-reply-to:references:date:message-id:subject:from:to
	:cc:content-type;
	bh=o+03RMymIAVrmiiwIYRzU8nu1dUuwZYfcgBLDQGPsZQ=;
	b=XA4jPUa2YO895N3HNvCqWBvmRkl4LqMugkRhzs/CVUOQ2a+nyD2O5nhQJCkNFwOjem
	gz1UG1Cjq+ze6JQCQbI/Nz+ZCn5n7nel48GYZXtZ2AqzxxfkOz/X+QYfjb8RZHSPis7f
	mjtb7TWDomNXqG64zFXTML3roVP1NTH/53xWM=
MIME-Version: 1.0
Received: by 10.216.167.5 with SMTP id h5mr972551wel.96.1316100637554; Thu, 15
	Sep 2011 08:30:37 -0700 (PDT)
Received: by 10.216.11.9 with HTTP; Thu, 15 Sep 2011 08:30:37 -0700 (PDT)
Received: by 10.216.11.9 with HTTP; Thu, 15 Sep 2011 08:30:37 -0700 (PDT)
In-Reply-To: <1612847344.9070.1316095570247.JavaMail.root@mail-01.cse.ucsc.edu>
References: <CACM2+-5=+1yzGMGyeui7Nt7t2S9_spxsHcMVD=3oG92zLAe3+Q@mail.gmail.com>
	<1612847344.9070.1316095570247.JavaMail.root@mail-01.cse.ucsc.edu>
Date: Fri, 16 Sep 2011 01:00:37 +0930
Message-ID: <CACM2+-625SSvFOroknGuD0m_W7kYK+=X7EdTCEhu99y-09UALw@mail.gmail.com>
From: Matt Thyer <matt.thyer@gmail.com>
To: Tim Gustafson <tjg@soe.ucsc.edu>
Content-Type: text/plain; charset=ISO-8859-1
X-Content-Filtered-By: Mailman/MimeDel 2.1.5
Cc: Adrian Chadd <adrian@freebsd.org>, freebsd-current@freebsd.org
Subject: Re: RELENG_8 / mpt / zpool Errors
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: Thu, 15 Sep 2011 15:30:39 -0000

On Sep 15, 2011 11:36 PM, "Tim Gustafson" <tjg@soe.ucsc.edu> wrote:
>
> > The SAS 2008 chip (SAS 6G) is the one that the FreeBSD mps driver has
> > problems with when used with port expanders. It's the older SAS 3G chip
> > that works OK with FreeBSD I think.
>
> I had crossed some wires earlier on in our discussion.
>
> We do have a SAS 2008 chip in the system already, but it's not the one
that's running the external disk boxes (and we are having no problem with
those drives).  The external disk boxes (the ones that are having the
problems) are connect through an LSI SAS 3801E, which is handled by the mpt
driver.  The mpt driver is what's giving us trouble right now.

Can you connect an enclosure to the SAS 2008 chip card you have now and
test?  I thought I had read about problems like yours with that chip on
FreeBSD when using such enclosures.