Testpmd crashes when any segment size is <= 18 bytes testpmd command: ./x86_64-native-linuxapp-gcc/build/app/test-pmd/testpmd c 0x003f -n 4 --no-pci --vdev net_ring0 --vdev net_ring1 -- --burst=64 --mbcache=512 --portmask 0x3 -i --txd=1024 --rxd=256 --rxq=1 --txq=1 --coremask 0x001e --disable-crc-strip --forward-mode=txonly --txpkts=16,16,16,16 -a Trace: #0 0x0000000000475698 in pkt_burst_transmit () #1 0x000000000045713a in run_pkt_fwd_on_lcore () #2 0x0000000000457244 in start_pkt_forward_on_core () #3 0x00000000004b9994 in eal_thread_loop () #4 0x00007ffff7093e25 in start_thread () from /lib64/libpthread.so.0 #5 0x00007ffff6dc134d in clone () from /lib64/libc.so.6
do we need to specify --rxq=1 argument to testpmd when tests was run for tx-only mode
Saleh, Is this still an issue? Thanks Ajit
Hi Saleh, testpmd works well with your command on latest codebase, could you please try again from your side? Here's my test environment and test result: ------------------------------------------ <DPDK Version>: 6a2cf58a04 (HEAD -> main, origin/main, origin/HEAD) <Kernel Version>: Linux intel-npg-odc-srv03 5.4.0-62-generic #70-Ubuntu SMP Tue Jan 12 12:45:47 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux <NIC Information>: driver: i40e version: 2.13.10 firmware-version: 8.10 0x800093e3 1.2829.0 expansion-rom-version: bus-info: 0000:05:00.0 supports-statistics: yes supports-test: yes supports-eeprom-access: yes supports-register-dump: yes supports-priv-flags: yes ------------------------------------------ root@intel-npg-odc-srv03:~/code/dpdk# ./build/app/dpdk-testpmd -c 0x003f -n 4 --no-pci --vdev net_ring0 --vdev net_ring1 -- --burst=64 --mbcache=512 --portmask 0x3 -i --txd=1024 --rxd=256 --rxq=1 --txq=1 --coremask 0x001e --forward-mode=txonly --txpkts=16,16,16,16 -a EAL: Detected 88 lcore(s) EAL: Detected 2 NUMA nodes EAL: Multi-process socket /var/run/dpdk/rte/mp_socket EAL: Selected IOVA mode 'VA' EAL: Probing VFIO support... EAL: VFIO support initialized Interactive-mode selected previous number of forwarding cores 1 - changed to number of configured cores 4 Set txonly packet forwarding mode Auto-start selected testpmd: create a new mbuf pool <mb_pool_0>: n=229376, size=2176, socket=0 testpmd: preferred mempool ops selected: ring_mp_mc Configuring Port 0 (socket 0) Port 0: 00:00:00:00:00:00 Configuring Port 1 (socket 0) Port 1: 00:00:00:00:00:00 Checking link statuses... Done Start automatic packet forwarding txonly packet forwarding - ports=2 - cores=2 - streams=2 - NUMA support enabled, MP allocation mode: native Logical Core 1 (socket 0) forwards packets on 1 streams: RX P=0/Q=0 (socket 0) -> TX P=1/Q=0 (socket 0) peer=02:00:00:00:00:01 Logical Core 2 (socket 0) forwards packets on 1 streams: RX P=1/Q=0 (socket 0) -> TX P=0/Q=0 (socket 0) peer=02:00:00:00:00:00 txonly packet forwarding packets/burst=64 packet len=64 - nb packet segments=4 nb forwarding cores=4 - nb forwarding ports=2 port 0: RX queue number: 1 Tx queue number: 1 Rx offloads=0x0 Tx offloads=0x0 RX queue: 0 RX desc=256 - RX free threshold=0 RX threshold registers: pthresh=0 hthresh=0 wthresh=0 RX Offloads=0x0 TX queue: 0 TX desc=1024 - TX free threshold=0 TX threshold registers: pthresh=0 hthresh=0 wthresh=0 TX offloads=0x0 - TX RS bit threshold=0 port 1: RX queue number: 1 Tx queue number: 1 Rx offloads=0x0 Tx offloads=0x0 RX queue: 0 RX desc=256 - RX free threshold=0 RX threshold registers: pthresh=0 hthresh=0 wthresh=0 RX Offloads=0x0 TX queue: 0 TX desc=1024 - TX free threshold=0 TX threshold registers: pthresh=0 hthresh=0 wthresh=0 TX offloads=0x0 - TX RS bit threshold=0 testpmd> stop Telling cores to stop... Waiting for lcores to finish... ---------------------- Forward statistics for port 0 ---------------------- RX-packets: 0 RX-dropped: 0 RX-total: 0 TX-packets: 1023 TX-dropped: 55122561 TX-total: 55123584 ---------------------------------------------------------------------------- ---------------------- Forward statistics for port 1 ---------------------- RX-packets: 0 RX-dropped: 0 RX-total: 0 TX-packets: 1023 TX-dropped: 55305985 TX-total: 55307008 ---------------------------------------------------------------------------- +++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++ RX-packets: 0 RX-dropped: 0 RX-total: 0 TX-packets: 2046 TX-dropped: 110428546 TX-total: 110430592 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Done. testpmd>
Cannot be reproduced, set to RESOLVED WORKSFORME.