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Ticket Resolution Summary Owner Reporter
#20199 fixed Immediate crash (guru meditation) with nested virtualization bcandler
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
#20198 fixed Virtualbox Linux vboxnetflt driver cannot be built with 5.11 kernel => fixed in svn/6.1.x x>18 BP cloudsw
Description

Failed to rebuild drivers after installing 5.11 kernel:

$sudo vboxconfig vboxdrv.sh: Stopping VirtualBox services. vboxdrv.sh: Starting VirtualBox services. vboxdrv.sh: Building VirtualBox kernel modules. vboxdrv.sh: failed: Look at /var/log/vbox-setup.log to find out what went wrong.

There were problems setting up VirtualBox. To re-start the set-up process, run

/sbin/vboxconfig

as root. If your system is using EFI Secure Boot you may need to sign the kernel modules (vboxdrv, vboxnetflt, vboxnetadp, vboxpci) before you can load them. Please see your Linux system's documentation for more information.

vbox-setup.log is attached

/tmp/vbox.0/linux/VBoxNetFlt-linux.c: In function ‘vboxNetFltNeedsLinkState’:
/tmp/vbox.0/linux/VBoxNetFlt-linux.c:1761:47: error: dereferencing pointer to incomplete type ‘const struct ethtool_ops’
 1761 |     if (pDev->ethtool_ops && pDev->ethtool_ops->get_drvinfo)
      |                                               ^~
/tmp/vbox.0/linux/VBoxNetFlt-linux.c:1763:32: error: storage size of ‘Info’ isn’t known
 1763 |         struct ethtool_drvinfo Info;
      |                                ^~~~
/tmp/vbox.0/linux/VBoxNetFlt-linux.c:1766:20: error: ‘ETHTOOL_GDRVINFO’ undeclared (first use in this function)
 1766 |         Info.cmd = ETHTOOL_GDRVINFO;
      |                    ^~~~~~~~~~~~~~~~
/tmp/vbox.0/linux/VBoxNetFlt-linux.c:1766:20: note: each undeclared identifier is reported only once for each function it appears in
/tmp/vbox.0/linux/VBoxNetFlt-linux.c:1763:32: warning: unused variable ‘Info’ [-Wunused-variable]
 1763 |         struct ethtool_drvinfo Info;
      |                                ^~~~
make[2]: *** [scripts/Makefile.build:279: /tmp/vbox.0/linux/VBoxNetFlt-linux.o] Error 1
make[1]: *** [Makefile:1800: /tmp/vbox.0] Error 2
make: *** [/tmp/vbox.0/Makefile-footer.gmk:117: vboxnetflt] Error 2
#20197 fixed Test ticket Valery Ushakov
Description

Test ticket. Please, ignore.

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