Verified this bug on 4.3.26-202006160135 node can be reboot and the vfio-pci driver shall be bind to the VFs successfully after kill the sriov-network-config-daemon pod when it starts to drain the node
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2020:2585