Comment 20 for bug 1781891

Hi John,
so you got the forwarding working, but then couldn't use it in the guest - sad to hear after all the effort you did :-/
And to confirm: now you are trying to revert the to the former normal setup and just forward e.g. the USB devices itself.

I agree - all the settings in /sys about unbind/bind/vfio_pci would be lost on a reboot.
Reading that you now after a reboot no more get it bound "normally" by the Host kernel is odd, but the runtime changes I suggested are not the reason as they are lost.

Maybe one of your former /etc based modprobe/unbindpci changes now finally kick in and work?
Try to revert all those.

You can remove all the files you created in that regard, and in addition let dpdk check if there are others still modified to check those files.
$ sudo dpkg --verify