[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