Just checking, but is this AMD-V thing enabled in the BIOS?
I've noticed on a few machines that some of the virtualisation options
were disabled by default in BIOS, so it does happen.

On 8 October 2013 11:01, Allan Duncan <[email protected]> wrote:
> I have VirtualBox up and running fine with a 32-bit XP image, but when I
> tried to configure a 64-bit linux machine VirtualBox barfs when you try
> to start it with:
>
> Failed to open a session for the virtual machine linux_test.
> AMD-V is being used by another hypervisor. (VERR_SVM_IN_USE).
> VirtualBox can't enable the AMD-V extension. Please disable the KVM
> kernel extension, recompile your kernel and reboot (VERR_SVM_IN_USE).
>
> Searching for this found a match, but their solution of
>    rmmod kvm_amd kvm
> I had already tried with modprobe -r and it doesn't fix it anyway.
>
> I've tried with both 3.10.11 and 3.11.2 from fedora.
>
> I am unable to see any kvm that is already running, and - more to the
> point - what causes kvm_amd to be loaded in the first place, since rmmod
> happily unloads what must be an unused module.
>
> Playing around a bit, VirtualBox says that it turns on the AMD-V option
> automatically if a 64-bit VM is selected.
>
> Btw, the .vdi was converted from the raw - a bootable usb stick with a
> full blown fedora OS on it.  I can't see that having any relevance as
> the error comes up before any boot process has happened.
>
> Suggestions please - I can do a kernel recompile, but what I have to
> disable isn't clear.
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-- 
Turning and turning in the widening gyre
The falcon cannot hear the falconer
Things fall apart; the center cannot hold
Mere anarchy is loosed upon the world
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