[vbox-dev] Virtualbox without VT-x crashes when running Android

Louis Luo louis.l.luo at outlook.com
Thu Oct 24 06:19:38 UTC 2013

Hi Alexey,Thanks for your explanation. If it is indeed incomplete, that means a really bad news for us. Is there any news/plan that the virtualbox developers/community will fix the issue in the near future?I have another question. I searched in FAQ and saw someone reported that virtualbox could run faster when hardware VT-x was disabled. Not sure what guest did they run. If software virtualization is incomplete, how can software virtualization run faster than the hardware virtualization?Thanks,Louis
Date: Wed, 23 Oct 2013 11:39:46 +0200
From: Alexey Eromenko <al4321 at gmail.com>
Subject: Re: [vbox-dev] Virtualbox without VT-x crashes when running
To: "VirtualBox developer's list" <vbox-dev at virtualbox.org>
I can explain, but you won't like the explanation. Software
virtualization in VirtualBox is incomplete, and some commands are just
not virtualized correctly.

Windows 8 I think also _requires_ hardware VT to be ON.
Now it should not crash. It just should refuse to start VM. (at least
it should happen, if Android was officially supported guest OS)
From: louis.l.luo at outlook.com
To: vbox-dev at virtualbox.org
Subject: Virtualbox without VT-x crashes when running Android
Date: Tue, 22 Oct 2013 22:35:50 -0700

Hi Vbox developers,
We are experiencing some crashes when we run Android X86 with Vbox on a system without VT-x. The App we run contains ARM code, so we add libhoudini to the VM (just like what AndroidVM does). When we start the App, Vbox crashes. If we turn on VT-x, it seems everything is just fine. Can anyone explain what happened here?
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