From owner-freebsd-stable@freebsd.org  Sat Feb 13 10:09:43 2016
Return-Path: <owner-freebsd-stable@freebsd.org>
Delivered-To: freebsd-stable@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 39C9AAA7B05
 for <freebsd-stable@mailman.ysv.freebsd.org>;
 Sat, 13 Feb 2016 10:09:43 +0000 (UTC)
 (envelope-from kostikbel@gmail.com)
Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1])
 (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 5DB2D1FF1
 for <freebsd-stable@freebsd.org>; Sat, 13 Feb 2016 10:09:42 +0000 (UTC)
 (envelope-from kostikbel@gmail.com)
Received: from tom.home (kostik@localhost [127.0.0.1])
 by kib.kiev.ua (8.15.2/8.15.2) with ESMTPS id u1DA9a98024182
 (version=TLSv1 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO);
 Sat, 13 Feb 2016 12:09:36 +0200 (EET)
 (envelope-from kostikbel@gmail.com)
DKIM-Filter: OpenDKIM Filter v2.10.3 kib.kiev.ua u1DA9a98024182
Received: (from kostik@localhost)
 by tom.home (8.15.2/8.15.2/Submit) id u1DA9aIO024161;
 Sat, 13 Feb 2016 12:09:36 +0200 (EET)
 (envelope-from kostikbel@gmail.com)
X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com
 using -f
Date: Sat, 13 Feb 2016 12:09:36 +0200
From: Konstantin Belousov <kostikbel@gmail.com>
To: Mark Dixon <mnd999@hotmail.com>
Cc: freebsd-stable@freebsd.org
Subject: Re: Is UEFI required for ZFS?
Message-ID: <20160213100936.GY91220@kib.kiev.ua>
References: <56BDFAA4.17139.1EEE35@lausts.acm.org>
 <20160212185659.GC26283@home.opsec.eu>
 <loom.20160212T221111-895@post.gmane.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <loom.20160212T221111-895@post.gmane.org>
User-Agent: Mutt/1.5.24 (2015-08-30)
X-Spam-Status: No, score=-2.0 required=5.0 tests=ALL_TRUSTED,BAYES_00,
 DKIM_ADSP_CUSTOM_MED,FREEMAIL_FROM,NML_ADSP_CUSTOM_MED autolearn=no
 autolearn_force=no version=3.4.1
X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on tom.home
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <https://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: <https://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 13 Feb 2016 10:09:43 -0000

On Fri, Feb 12, 2016 at 09:15:49PM +0000, Mark Dixon wrote:
> > Can you put a dmesg.boot from the server ? An pciconf -lvb ?
> > 
> 
> I have the exact same issue on the forum, so I can:
As a blind shot, try to lower the CPU frequency in the BIOS, to 3 or even
to 2 Ghz.  If you can try a dos (real dos from MS) on usb stick and see
if it works it could be also telling.

Also, could you obtain verbose dmesg ?