I am using all of your latest commit changes and I can get everything to work except if the test.vbox file has Adapter 0 enabled="true". if set to false (obviously there is no networking) but the two VM's boot into their respective windows, I can interact with each independently. When I enable the adapter in the test.vbox file, Genode still boots, the GUI starts, the two windows appear but they remain stubbornly blank.
Here is what I tried to fix this:
I have increased the caps on the nic_bridge to 200
increased the caps on the vbox1 and vbox2 to 500
I removed the nic bridge from the config for one vbox in the virtualbox.run (to see if I can get video on even one)
Nothing I changed made any difference. As long as enabled="true" was set, neither VM loaded at all. This is booting from physical hardware, not in a virtualized environment. Thoughts?