I used the e1000 NIC with OVS-DPDK and experienced a failure when using the /dpdk/app/dpdk-dumpcap command to capture packets. After making modifications, it worked fine. /dpdk/app/dpdk-dumpcap -i 0000:00:04.0 File: /tmp/dpdk-dumpcap_0_0000:00:04.0_20240723020203.pcapng Segmentation fault (core dumped) ovs-vsctl list open . _uuid : 82223d04-0a60-44fe-83ac-398a01b0bca3 bridges : [8f188622-c17d-4d21-ad30-22c30860f050, ca88255e-54e5-4b06-aaff-fdde55018f35] cur_cfg : 15 datapath_types : [netdev, system] datapaths : {netdev=d801e891-7990-4f77-ae9a-c776ba4430a4, system=25e5a761-3160-4ea1-adab-b4cddd8309e4} db_version : "8.3.0" dpdk_initialized : true dpdk_version : "DPDK 23.11.0" external_ids : {hostname=cell1-xgw-dpdk, ovn-bridge-datapath-type=netdev, ovn-bridge-mappings="external:br-tun,share:br-tun,direct-connect:br-tun", ovn-encap-ip="172.16.0.13", ovn-encap-tos=inherit, ovn-encap-type=geneve, ovn-remote="tcp:[192.168.122.171]:6642", ovn-set-local-ip="true", rundir="/var/run/openvswitch", system-id=cell1-xgw-dpdk} iface_types : [bareudp, dpdk, dpdkvhostuser, dpdkvhostuserclient, erspan, geneve, gre, gtpu, internal, ip6erspan, ip6gre, lisp, patch, stt, system, tap, vxlan] manager_options : [] next_cfg : 15 other_config : {dpdk-extra=" -a 0000:00:04.0" , dpdk-init="true", pmd-perf-metrics="false", vlan-limit="0"} ovs_version : "2.17.5" ssl : [] statistics : {} system_type : cclinux system_version : "22.09.2" status : {bus_info="bus_name=pci, vendor_id=8086, device_id=100e", driver_name=net_e1000_em, if_descr="DPDK 23.11.0 net_e1000_em", if_type="6", link_speed="1Gbps", max_hash_mac_addrs="0", max_mac_addrs="15", max_rx_pktlen="1518", max_rx_queues="2", max_tx_queues="2", max_vfs="0", max_vmdq_pools="0", min_rx_bufsize="256", n_rxq="1", n_txq="2", numa_id="-1", port_no="0", rx-steering=rss, rx_csum_offload="true", tx_geneve_tso_offload="false", tx_ip_csum_offload="true", tx_out_ip_csum_offload="false", tx_out_udp_csum_offload="false", tx_sctp_csum_offload="false", tx_tcp_csum_offload="true", tx_tcp_seg_offload="false", tx_udp_csum_offload="true", tx_vxlan_tso_offload="false"} /usr/local/bin/dpdk-devbind.py --status Network devices using DPDK-compatible driver ============================================ 0000:00:04.0 '82540EM Gigabit Ethernet Controller 100e' drv=uio_pci_generic unused= Network devices using kernel driver =================================== 0000:00:03.0 '82540EM Gigabit Ethernet Controller 100e' if=eth0 drv=e1000 unused=uio_pci_generic *Active* Jun Wang