The Intel ixgbe/ixgbevf and QLogic qla2xxx drivers compete for MSI-X resources when using a 16 GB QLogic Fibre Channel HBA on systems that are running Oracle VM Server 3.4. As a result, if both drivers are used in a system, and an attempt is made to create the maximum number of Virtual Function (VF) devices that are allowed for the ixgbe/ixgbevf driver, an interrupt allocation failure occurs during the creation of the last VF device.

This issue is fully resolved by using the latest Oracle-supported firmware for the QLogic 16GB card (FC Firmware v 8.07.71 or later). (Bug IDs 25952728, 26916827)