virtualbox.org

Host setup:
CPU: AMD Ryzen 7 3700 8 core
RAM: 128G
OS: Window 10 Pro
virtualbox: 6.1.16

1st level guest
OS: Windows 10 Pro with VB additions 6.1.16
virtualbox: 6.1.16

2nd level guest
OS: Linux version 4.1.12-124.32.3.2.el6uek.x86_64

Whenever I start 2nd level guest from 1st level guest the guest Windows reboots.
In the Windows guest log there is this messsage:
00:18:31.402261 VMMDev: Guest Log: VBoxGuest: BugCheck! P0=0x1e P1=0xffffffffc0000005 P2=0xfffff8002f8cd307 P3=0x0 P4=0xffffffffffffffff
00:18:31.402439 ACPI: Reset initiated by ACPI
00:18:31.402471 Changing the VM state from 'RUNNING' to 'RESETTING'

I have been trying for 2 weeks already to no avail.
I think I tried all combination virtualbox parameters I could find on web.
Enabling/disabling hyper-v, bcdedit /set hypervisorlaunchtype auto/off, paravirtualization none/hyperv/kvm, drag and drop disabled.
Nothing helps.

Is there a solution for this or should I start looking at other setup?
I can imagine I could replace 1st level OS with some Linux.

RF123 wrote:Is there a solution for this or should I start looking at other setup?
I can imagine I could replace 1st level OS with some Linux.

Since a VM with another 1st level OS doesn't come with real hardware costs, I'd go that route first. If it also doesn't work, there will definitely be a different kind of error, and maybe it's easier to diagnose than those BugCheck errors, which usually either need guessing or debugging on the guest OS.