[dpdk-dev] TX offloads lead to Segmentation fault?

[bai bakari]

Hi,


When I enable the Tx offloads capabilities, I get the segmentation fault.
The backtrace like this:
lcore_main_loop
	--> main_loop_tx
		--> rte_eth_tx_burst
			--> eth_igb_xmit_pkts
				--> rte_pktmbuf_free_seg
					--> rte_pktmbuf_prefree_seg
						--> rte_pktmbuf_detach
							--> __rte_pktmbuf_free_extbuf
								--> rte_mbuf_ext_refcnt_update
									--> rte_mbuf_ext_refcnt_read
										--> rte_atomic16_read
											return v->cnt;



And I set Tx offloads like this:
.txmode = {
        .mq_mode = ETH_MQ_TX_NONE,
        .offloads = DEV_TX_OFFLOAD_IPV4_CKSUM | \
                    DEV_TX_OFFLOAD_TCP_CKSUM | \
                    DEV_TX_OFFLOAD_UDP_CKSUM
    },



and set the m->ol_flags, l2_len, l3_len and l4_len.




Is there something I am missing? The NIC is Intel Corporation I350 Gigabit Network Connection(rev 01).


Thanks in advance.
bakari