The whole system freezes and becomes unresponsive when I start a virtual machine. The exact moment it hangs is after you close the window asking you to select the installation media. If you already selected an installation media in the virtual machine's settings then the host machine hangs almost immediately after starting the guest machine. ------------------------------------- FreeBSD version: FreeBSD 12.0-ALPHA6 r338797 amd64 packages: virtualbox-ose-5.2.18_1 virtualbox-ose-kmod-5.2.18 nvidia-driver-390.77_2 loader.conf: vboxdrv_load="YES" rc.conf: kld_list="acpi_video nvidia-modeset" linux_enable="YES", vboxnet_enable="YES" filesystem: ZFS Nvidia card: GF119 [NVS 315]
It also happens on my machine with this configuration: -------------------------- FreeBSD BWEPCFERNANDEZ 12.0-ALPHA7 FreeBSD 12.0-ALPHA7 r338940 GENERIC amd64 The error comes with the kernel driver. I tried installing emulators/virtualbox-ose in the version 5.2.16 (5.2.18 for kmod) and also breaks. When I install the version 5.2.16 for both, it works.
virtualbox-ose-5.2.20 works for me on 13.0-CURRENT r339955.