virtualbox nested-virtualization got: pgmR0BthEPTProtNestedTrap0eHandler: rc=0 GCPhysNestedFault=0x000000007ffba8af (0x00000001fcfba000) uErr=0x11 cs:rip=0008:7ffba8af

[xrivendell7]

Host os: ubuntu20.04 Virtualbox version: Version 7.0.6 r155176 (Qt5.12.8) guest os: ubuntu18.04

When I execute qemu-system to setup a virtual machine with the command line:

qemu-system-x86_64 -snapshot -kernel bzImage -hda stretch.img -append "console=ttyS0 root=/dev/sda debug earlyprintk=serial oops=panic panic_on_warn=1 nokaslr nosmap nosmep" -net nic -net user,hostfwd=tcp::31337-:22 -nographic -m 2G -monitor none,server,nowait,nodelay,reconnect=-1 -smp cores=2,threads=2 -enable-kvm -cpuhost,-smap,-smep

I got crashed and see the log(It's huge within 10minus about 600M)

00:07:08.359355 pgmR0BthEPTProtNestedTrap0eHandler: rc=0 GCPhysNestedFault=0x000000007ffba8af (0x00000001fcfba000) uErr=0x11 cs:rip=0008:7ffba8af
00:07:08.359383 *FLUSH DONE*

[Ramshankar Venkataraman]

Thanks for the report.

This bug should be fixed in the upcoming VirtualBox 7.0.x maintenance release.