Hi, With VPP multi-core (workers >= 2) and dpdk-bonding (mode-2) configuration, I observe intermittent VPP crash traffic is sent at high-rates (for example, sent 4 MPPS of 1518B packets). Same crash is seen even with different packet-sizes like 64B, 128B etc.
I don't see the crash when the number of workers is set to 1. I observed a similar crash in the following link but not sure if there was a resolution for this. Let me know if this is a known issue, if this is fixed already, please let me know the VPP release that has this fix. https://lists.fd.io/g/vpp-dev/topic/23181323?p=,,,20,0,0,0::,,,0,0,0,23181323 VPP Release: 18.07.1 VPP Startup Configuration: ===================== - number of workers 2 or more - dpdk bonding configuration (mode-2) with xmit_policy=l34 Crash Back-trace: ============== (gdb) bt #0 rte_pktmbuf_free (m=0x7fdd000005d8) at /home/mouli/src/service/3p/vpp/vpp_18.07.1/build-root/install-vpp-native/dpdk/include/dpdk/rte_mbuf.h:1686 #1 dpdk_interface_tx (vm=<optimized out>, node=<optimized out>, f=<optimized out>) at /home/mouli/src/service/3p/vpp/vpp_18.07.1/build-data/../src/plugins/dpdk/device/device.c:505 #2 0x00007ffff79513a4 in dispatch_node (last_time_stamp=2856986897309270, frame=0x7fffb74af080, dispatch_state=VLIB_NODE_STATE_POLLING, type=VLIB_NODE_TYPE_INTERNAL, node=0x7fffb6d44100, vm=0x7fffb6ab0180) at /home/mouli/src/service/3p/vpp/vpp_18.07.1/build-data/../src/vlib/main.c:988 #3 dispatch_pending_node (vm=vm@entry=0x7fffb6ab0180, pending_frame_index=pending_frame_index@entry=4, last_time_stamp=2856986897309270) at /home/mouli/src/service/3p/vpp/vpp_18.07.1/build-data/../src/vlib/main.c:1138 #4 0x00007ffff795222f in vlib_main_or_worker_loop (is_main=0, vm=0x7fffb6ab0180) at /home/mouli/src/service/3p/vpp/vpp_18.07.1/build-data/../src/vlib/main.c:1616 #5 vlib_worker_loop (vm=0x7fffb6ab0180) at /home/mouli/src/service/3p/vpp/vpp_18.07.1/build-data/../src/vlib/main.c:1641 #6 0x00007ffff6ac8858 in clib_calljmp () at /home/mouli/src/service/3p/vpp/vpp_18.07.1/build-data/../src/vppinfra/longjmp.S:110 #7 0x00007fdde4ffddb0 in ?? () #8 0x00007fffb421b49d in eal_thread_loop (arg=<optimized out>) at /home/mouli/src/service/3p/vpp/vpp_18.07.1/build-root/build-vpp-native/dpdk/dpdk-18.05/lib/librte_eal/linuxapp/eal/eal_thread.c:153 #9 0x0000000000000000 in ?? () (gdb) Any help or pointers will be helpful. Thanks in advance. Regards, Mouli
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