When device has been bound to igb_uio driver and application is running,
hot-unplugging the device may cause kernel crash.

Reason:
When device is hot-unplugged, igb_uio driver will be removed which will destroy
UIO resources. Later trying to access any UIO resource will cause kernel crash.

Resolution/Workaround:
If using DPDK for PCI HW hot-unplug, prefer to bind device with VFIO instead of
IGB_UIO.

Affected Environment/Platform:
ALL.

Driver/Module:
igb_uio module.