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