From owner-freebsd-hackers@FreeBSD.ORG  Wed Feb 24 13:43:58 2010
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Date: Wed, 24 Feb 2010 14:43:54 +0100
From: Gary Jennejohn <gary.jennejohn@freenet.de>
To: Jacques Fourie <jacques.fourie@gmail.com>
Message-ID: <20100224144354.1283d7cd@ernst.jennejohn.org>
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Cc: freebsd-hackers@freebsd.org
Subject: Re: VirtualBox and vtophys
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On Wed, 24 Feb 2010 13:41:31 +0200
Jacques Fourie <jacques.fourie@gmail.com> wrote:

> I've noticed that my virtualbox vboxdrv.ko started crashing after
> updating my 8.0-stable install. The crash occurs when vboxdrv calls
> vtophys() on a userland virtual address. Prior to r202894 this was
> working fine. Modifying pmap_kextract() to use vtopte() for non-kernel
> virtual adresses fixes the problem. Is it intended for vtophys() to
> still work on userland virtual addresses?
>

This was recently (yesterday and today) discussed on freebsd-emulation with
subject Virtualbox.

See there for suggested actions.

---
Gary Jennejohn