I'm trying to switch from UIO to VFIO and the spdk/examples/nvme examples work on my test node when I've performed the switch. [ DPDK EAL parameters: daos --no-shconf -c 0x1 --log-level=lib.eal:6 --base-virtaddr=0x200000000000 --match-allocations --file-prefix=spdk_pid182014 ] ERROR: daos_io_server:0 EAL: No free hugepages reported in hugepages-1048576kB daos_io_server:0 EAL: VFIO support initialized daos_io_server:0 EAL: using IOMMU type 1 (Type 1) daos_io_server:0 EAL: Cannot open /dev/vfio/47: Permission denied EAL: Failed to open group 47 I've tried to follow the env init including opts as per the examples and the DPDK EAL parameters look the same as when running examples. Any ideas? Best regards, Tom Nabarro BEng (hons) Extreme Storage Architecture & Development Intel Corporation E: tom.nabarro(a)intel.com M: +44 (0)7786 260986 Skype: tom.nabarro --------------------------------------------------------------------- Intel Corporation (UK) Limited Registered No. 1134945 (England) Registered Office: Pipers Way, Swindon SN3 1RJ VAT No: 860 2173 47 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies.