Score:0

No longer starting Virtualbox VM after OS Update/Reboot: VirtualBox can't enable the AMD-V extension

gr flag

Virtualbox VMs have been running fine on my Ubuntu 20.04 machine until right after my latest apt get update; apt get upgrade -y and reboot.

Now, whenever I try to start a VirtualboxVM, I get the error:

Failed to open a session for the virtual machine Foo. VirtualBox can't enable the AMD-V extension. Please disable the KVM kernel extension, recompile your kernel and reboot (VERR_SVM_IN_USE).

Is there a fix for this? Why did this suddenly happen?

lsmod | grep kvm

$ lsmod | grep kvm
kvm_amd               114688  6
ccp                    98304  1 kvm_amd
kvm                   823296  1 kvm_amd

uname -r

$ uname -r
5.11.0-43-generic

Full Error Message

Failed to open a session for the virtual machine Foo.

VirtualBox can't enable the AMD-V extension. Please disable the KVM kernel extension, recompile your kernel and reboot (VERR_SVM_IN_USE).

Result Code: NS_ERROR_FAILURE (0x80004005)
Component: ConsoleWrap
Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed}

Machine Specs

  • AMD Ryzen 3950X
  • 128 GB DDR
  • Nvidia RTX 2070 Super
  • Ubuntu 20.04

VM System Settings

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