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USB Passthrough No Longer Working After Forced Stop

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I have been having an issue since setting up my PCI USB controller to passthrough to my VMs where if the VM has to be force stopped for some reason then the USB controller no longer works inside the VMs after starting back up again.  It also takes longer for the VM to boot after a force stop.  The only thing I have found to resolve this is to reboot the entire server.

If I turn off the VM service then try to start again it will give me the libvrt failed to start error.


 Is there any easier way to reset the USB controller for passthrough in this situation?

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