From owner-freebsd-questions@FreeBSD.ORG Thu Jul 21 15:07:43 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9B430106564A for ; Thu, 21 Jul 2011 15:07:43 +0000 (UTC) (envelope-from amvandemore@gmail.com) Received: from mail-fx0-f44.google.com (mail-fx0-f44.google.com [209.85.161.44]) by mx1.freebsd.org (Postfix) with ESMTP id 2B2DD8FC1D for ; Thu, 21 Jul 2011 15:07:42 +0000 (UTC) Received: by fxe6 with SMTP id 6so2758240fxe.17 for ; Thu, 21 Jul 2011 08:07:42 -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=kBY+sacjogq2p2JJ2eWXRt2+G6NUbya32EdlPdlU10Y=; b=GRVhXh7PRrbfxvVHHrrgCZRc/FqvUurRGHyNCBH3w96alKaMDfiC6GhPlZxvxaJRUP Xe6nqS1DT0IBfZGziXECDjPIoKyL9GtBLmNd5FLrnFwgw9CG1bvNiW2f0qPm88Xc1pRE odRhUMAOjEmjnzpNrRFj27odELVwpqknSatRE= MIME-Version: 1.0 Received: by 10.223.144.136 with SMTP id z8mr464840fau.31.1311260862083; Thu, 21 Jul 2011 08:07:42 -0700 (PDT) Received: by 10.223.124.67 with HTTP; Thu, 21 Jul 2011 08:07:41 -0700 (PDT) In-Reply-To: References: <4E280F06.6080102@infracaninophile.co.uk> Date: Thu, 21 Jul 2011 10:07:41 -0500 Message-ID: From: Adam Vande More To: Warren Block Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-questions@freebsd.org Subject: Re: virtualbox 4.0 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Jul 2011 15:07:43 -0000 On Thu, Jul 21, 2011 at 8:38 AM, Warren Block wrote: > Recent versions of VirtualBox claim to be able to run a 64-bit VM on a > 32-bit host if the host CPU is 64-bit and has hardware virtualization > support: http://forums.virtualbox.org/viewtopic.php?p=33940 > (search for "64-bit guest") > > So far I've only seen guest kernel panics when booting the kernel on an > E8400 i386 FreeBSD host. That functionality has been around awhile, probably at least around the time Vbox was introduced to FreeBSD ports. I used to use 64 bit VM's on a 32 bit FreeBSD host, but the only stipulation was only one 64 bit VM could be run at a time. I didn't have any stability issues. This was in the early 3.X series and I haven't tried recently. -- Adam Vande More