Ticket #20199 (closed defect: fixed)
Immediate crash (guru meditation) with nested virtualization
Reported by: | bcandler | Owned by: | |
---|---|---|---|
Component: | other | Version: | VirtualBox 6.1.18 |
Keywords: | nested vt-x | Cc: | |
Guest type: | all | Host type: | Mac OS X |
Description
The physical host is a Macbook Pro Retina 13" Early 2015, with Broadwell i7-5557U and 16GB RAM, running macOS 10.14.6 (security update 2021-002)
The main VM is Ubuntu 18.04.5 with 4GB of RAM. I have enabled nested virtualization for this VM from the VBox CLI:
VBoxManage modifyvm "vtptest" --nested-hw-virt on
(this is because the nested virt button in the GUI was disabled, see #19245, even though this processor supports it)
With VBox 6.1.18, I get an instant crash on starting a nested VM. The attached files were triggered by running the following command inside the main VM:
/usr/bin/qemu-system-x86_64 -enable-kvm -nographic
Attachments
Change History
Changed 2 years ago by bcandler
-
attachment
VBox.png
added
console dump (note: this was before the crash, which was done over an ssh session)
comment:1 Changed 2 years ago by bcandler
qemu version inside VM:
nsrc@vtptest:~$ dpkg-query -l | grep qemu ii ipxe-qemu 1.0.0+git-20180124.fbe8c52d-0ubuntu2.2 all PXE boot firmware - ROM images for qemu ii ipxe-qemu-256k-compat-efi-roms 1.0.0+git-20150424.a25a16d-0ubuntu2 all PXE boot firmware - Compat EFI ROM images for qemu ii qemu-block-extra:amd64 1:2.11+dfsg-1ubuntu7.35 amd64 extra block backend modules for qemu-system and qemu-utils ii qemu-kvm 1:2.11+dfsg-1ubuntu7.35 amd64 QEMU Full virtualization on x86 hardware ii qemu-system-common 1:2.11+dfsg-1ubuntu7.35 amd64 QEMU full system emulation binaries (common files) ii qemu-system-x86 1:2.11+dfsg-1ubuntu7.35 amd64 QEMU full system emulation binaries (x86) ii qemu-utils 1:2.11+dfsg-1ubuntu7.35 amd64 QEMU utilities
comment:2 Changed 2 years ago by aeichner
Please try the latest 6.1 testbuild from here. It should fix the issue.
comment:3 Changed 2 years ago by Tcharl
I confirm the latest testbuild have fixed the issue: I had the same behaviour on a Mac Big Sur host, running a VB guest on fedora 33, running itself a KVM guest on F33.
Everything VB was crashing on 6.18, and everything is fine with the latest test build.
Thank you Devs, keep being awesome!