From owner-freebsd-virtualization@freebsd.org  Fri Jan 13 02:49:59 2017
Return-Path: <owner-freebsd-virtualization@freebsd.org>
Delivered-To: freebsd-virtualization@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 0071FCACF82
 for <freebsd-virtualization@mailman.ysv.freebsd.org>;
 Fri, 13 Jan 2017 02:49:59 +0000 (UTC)
 (envelope-from grehan@freebsd.org)
Received: from alto.onthenet.com.au (alto.OntheNet.com.au [203.13.68.12])
 by mx1.freebsd.org (Postfix) with ESMTP id B5D4210C0
 for <freebsd-virtualization@freebsd.org>; Fri, 13 Jan 2017 02:49:58 +0000 (UTC)
 (envelope-from grehan@freebsd.org)
Received: from iredmail.onthenet.com.au (iredmail.onthenet.com.au
 [203.13.68.150])
 by alto.onthenet.com.au (Postfix) with ESMTPS id 5DCD420A10C0
 for <freebsd-virtualization@freebsd.org>;
 Fri, 13 Jan 2017 12:49:38 +1000 (AEST)
Received: from localhost (iredmail.onthenet.com.au [127.0.0.1])
 by iredmail.onthenet.com.au (Postfix) with ESMTP id 567D52809D5
 for <freebsd-virtualization@freebsd.org>;
 Fri, 13 Jan 2017 12:49:38 +1000 (AEST)
X-Amavis-Modified: Mail body modified (using disclaimer) -
 iredmail.onthenet.com.au
Received: from iredmail.onthenet.com.au ([127.0.0.1])
 by localhost (iredmail.onthenet.com.au [127.0.0.1]) (amavisd-new, port 10026)
 with ESMTP id 836EVH1IXd5l for <freebsd-virtualization@freebsd.org>;
 Fri, 13 Jan 2017 12:49:38 +1000 (AEST)
Received: from Peters-MacBook-Pro-2.local
 (96-82-80-65-static.hfc.comcastbusiness.net [96.82.80.65])
 by iredmail.onthenet.com.au (Postfix) with ESMTPSA id D4F112809CC;
 Fri, 13 Jan 2017 12:49:36 +1000 (AEST)
Subject: Re: [Bug 215740] [bhyve] utilizing passthru breaks raw device usage
 with virtio-blk | ahci-hd
To: Harry Schmalzbauer <freebsd@omnilan.de>
References: <bug-215740-27103@https.bugs.freebsd.org/bugzilla/>
 <bug-215740-27103-tq0ISbGda2@https.bugs.freebsd.org/bugzilla/>
 <58737A50.30506@omnilan.de>
Cc: freebsd-virtualization@freebsd.org
From: Peter Grehan <grehan@freebsd.org>
Message-ID: <e55446b1-50f0-b7d6-c62a-71d63453257d@freebsd.org>
Date: Thu, 12 Jan 2017 18:49:54 -0800
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:45.0)
 Gecko/20100101 Thunderbird/45.5.1
MIME-Version: 1.0
In-Reply-To: <58737A50.30506@omnilan.de>
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: quoted-printable
X-CMAE-Score: 0
X-CMAE-Analysis: v=2.2 cv=YJDv8VOx c=1 sm=1 tr=0
 a=A6CF0fG5TOl4vs6YHvqXgw==:117 a=mwgbnDbW7alINpy3vhoKyg==:17
 a=N659UExz7-8A:10 a=IgFoBzBjUZAA:10 a=6I5d2MoRAAAA:8
 a=PiYCDd7JiSVUa8zsN9cA:9 a=pILNOxqGKmIA:10 a=IjZwj45LgO3ly-622nXo:22
 wl=host:3
X-BeenThere: freebsd-virtualization@freebsd.org
X-Mailman-Version: 2.1.23
Precedence: list
List-Id: "Discussion of various virtualization techniques FreeBSD supports."
 <freebsd-virtualization.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-virtualization>, 
 <mailto:freebsd-virtualization-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-virtualization/>
List-Post: <mailto:freebsd-virtualization@freebsd.org>
List-Help: <mailto:freebsd-virtualization-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-virtualization>, 
 <mailto:freebsd-virtualization-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 13 Jan 2017 02:49:59 -0000

Hi Harry,

>  Bez=FCglich bugzilla-noreply@freebsd.org's Nachricht vom 04.01.2017 21=
:37
> (localtime):
>> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D215740
>>
> =85
>> --- Comment #1 from Peter Grehan <grehan@FreeBSD.org> ---
>> Would you be able to post a verbose dmesg (boot -v) ?
>
> Due to lack of knowledge I experimented with BIOS VT-d settings "Remap
> Interrupt enable" and "Remap DMA enable".
> No difference in any combination.
> Is there anything else I can provide to help narrowing down the problem=
?
> Has anybody else ever tried such a VM (using character special file as
> virtio-blk backend together with a passthru device)? With success?

  I had a look at the dmesg logs you posted in the bug report -=20
everything looked fine there. I'll give it a try and see if I can repro.

later,

Peter.