Hi Tomasz It looks like you have your kernel booted with iommu=on. Please check your /proc/cmdline to make sure you didn't accidentally selected the wrong bootloader entry.
> We're trying to run testpmd application on HP Proliant DL380P Gen 8 server. > We've enabled SR-IOV in BIOS and set appropriate flags when booting kernel > (iommu=pt intel_iommu=on) The NIC we are using is 82599EB (2 ports, 10Gb > SFP+) > > When running testpmd application we always encouter DMAR error in dmesg > > [ 186.302866] dmar: DRHD: handling fault status reg 2 [ 186.302872] dmar: > DMAR:[DMA Read] Request device [07:00.1] fault addr > 1f73220000 > [ 186.302872] DMAR:[fault reason 06] PTE Read access is not set [ > 186.302875] dmar: DMAR:[DMA Read] Request device [07:00.0] fault addr > 1f73200000 > [ 186.302875] DMAR:[fault reason 06] PTE Read access is not set [ > 324.759520] dmar: DRHD: handling fault status reg 202 [ 324.759525] dmar: > DMAR:[DMA Read] Request device [07:00.1] fault addr > 1f73220000 > [ 324.759525] DMAR:[fault reason 06] PTE Read access is not set [ > 324.759528] dmar: DMAR:[DMA Read] Request device [07:00.0] fault addr > 1f73200000 > [ 324.759528] DMAR:[fault reason 06] PTE Read access is not set Best regards, Anatoly Burakov DPDK SW Engineer