On Tue, Dec 12, 2017 at 07:02:30PM +0800, Ming Lei wrote: > blk_mq_pci_map_queues() may not map one CPU into any hw queue, but its > previous map isn't cleared yet, and may point to one stale hw queue > index. > > This patch fixes the following issue by clearing the mapping table before > setting it up in blk_mq_pci_map_queues(). This needs to be done in the caller intead of the transport specific queue map helpers.