From owner-freebsd-xen@FreeBSD.ORG  Wed Apr  8 13:08:32 2015
Return-Path: <owner-freebsd-xen@FreeBSD.ORG>
Delivered-To: freebsd-xen@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 7642BB84
 for <freebsd-xen@freebsd.org>; Wed,  8 Apr 2015 13:08:32 +0000 (UTC)
Received: from SMTP02.CITRIX.COM (smtp02.citrix.com [66.165.176.63])
 (using TLSv1 with cipher RC4-SHA (128/128 bits))
 (Client CN "mail.citrix.com",
 Issuer "Cybertrust Public SureServer SV CA" (not verified))
 by mx1.freebsd.org (Postfix) with ESMTPS id 0EDE6370
 for <freebsd-xen@freebsd.org>; Wed,  8 Apr 2015 13:08:31 +0000 (UTC)
X-IronPort-AV: E=Sophos;i="5.11,544,1422921600"; d="scan'208";a="253062703"
Message-ID: <5525282D.8060808@citrix.com>
Date: Wed, 8 Apr 2015 15:07:57 +0200
From: =?UTF-8?B?Um9nZXIgUGF1IE1vbm7DqQ==?= <roger.pau@citrix.com>
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9;
 rv:31.0) Gecko/20100101 Thunderbird/31.6.0
MIME-Version: 1.0
To: =?UTF-8?B?R3VzdGF1IFDDqXJleg==?= <gperez@entel.upc.edu>
Subject: Re: Fwd: Re: Unable to boot with the dom0 xen kernel
References: <5523D56B.9040706@entel.upc.edu> <5523D5A7.5040809@entel.upc.edu>
 <5523EDBE.70709@FreeBSD.org> <5523FD07.1000707@entel.upc.edu>
In-Reply-To: <5523FD07.1000707@entel.upc.edu>
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 8bit
X-DLP: MIA2
Cc: freebsd-xen@freebsd.org
X-BeenThere: freebsd-xen@freebsd.org
X-Mailman-Version: 2.1.18-1
Precedence: list
List-Id: Discussion of the freebsd port to xen - implementation and usage
 <freebsd-xen.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-xen>,
 <mailto:freebsd-xen-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-xen/>
List-Post: <mailto:freebsd-xen@freebsd.org>
List-Help: <mailto:freebsd-xen-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-xen>,
 <mailto:freebsd-xen-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 08 Apr 2015 13:08:32 -0000

Hello,

El 07/04/15 a les 17.51, Gustau Pérez ha escrit:
>    Removing the assert prevents the panic and thus the machine boots.
> However I believe the assert was there for a reason, wouldn't it break
> somewhere else?
> 
>    OTOH, I see the machine has problems handling the interruption from
> all devices. I see watchdog timeouts from the mpt controller, usb, and
> network. Even shutting down the machine via ACPI fails (I had to unplug
> the two PS to shut it down). Probably related with the iommu=no-intremap
> in the xen_cmdline, isn't it?

The interrupt timeouts are probably related to the IOMMU errata, the
ACPI poweroff problem is because we need to negotiate the shutdown with
the hypervisor, which we currently don't do. I have a very hacky patch
for FreeBSD that should fix it, but I haven't found time to properly
integrate it:

http://xenbits.xen.org/gitweb/?p=people/royger/freebsd.git;a=patch;h=612509976d5d2af7633547e0279aae08a6508d7c

Leaving this aside, I have a patch for Xen I would like you to try on
this box, it *should* fix the INS/OUTS problem (not the poweroff). I've
pushed it to a branch on my git repo, you can find it at:

http://xenbits.xen.org/gitweb/?p=people/royger/xen.git;a=shortlog;h=refs/heads/pvh_io_ports.v1

or

git://xenbits.xen.org/people/royger/xen.git branch pvh_io_ports.v1

If you still get the timeouts please post the full boot log and we can
try to figure out if there's any workaround.

Thanks, Roger.