Hi John,
[init -> virtualbox] EMT Initial balloon size 0 [init -> virtualbox] Could not open ROM session for module "usb_devices" [init -> virtualbox] Warning: abort called - thread: vCPU dispatcher [init] virtual void Genode::Child_policy::exit(int): child "virtualbox"
this error rings a bell. It was recently fixed but the fix has not reached the master branch yet. Can you please try it again with the following patch applied:
https://github.com/genodelabs/genode/pull/2016/commits/aaf160a7aa8c3e12c5f76...
Since we added support for passing USB devices to VMs, VirtualBox inquiries the information about the present USB devices bo opening a ROM session for module called "usb_devices". The simple virtualbox.run script lacks this information. The problem remained unnoticed because our automated tests use different run scripts (the ones with "auto" in their names).
Cheers Norman