Hi, qi
Is your patch duplicated with this
http://www.dpdk.org/dev/patchwork/patch/29814/ ?
Thanks
Jingjing
> -----Original Message-----
> From: Zhang, Qi Z
> Sent: Monday, October 9, 2017 4:54 PM
> To: Wu, Jingjing <jingjing...@intel.com>; Xing, Beilei <beilei.x...@intel.com>
> Cc: dev@dpdk.org; Zhang, Qi Z <qi.z.zh...@intel.com>; sta...@dpdk.org
> Subject: [PATCH] net/i40e: fix unexpected mbuf free in vPMD
>
> The patch reset tx queue sw_ring's mbuf to NULL after it is free in
> i40_tx_free_bufs, this prevent same mbuf be free again in
> i40e_dev_tx_queue_release. This fix follow the same implemenation of non-
> vPMD.
>
> Fixes: b4669bb95038 ("i40e: add vector Tx")
> Cc: sta...@dpdk.org
>
> Signed-off-by: Qi Zhang <qi.z.zh...@intel.com>
> ---
> drivers/net/i40e/i40e_rxtx_vec_common.h | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/net/i40e/i40e_rxtx_vec_common.h
> b/drivers/net/i40e/i40e_rxtx_vec_common.h
> index 39a6da0..ed51b4d 100644
> --- a/drivers/net/i40e/i40e_rxtx_vec_common.h
> +++ b/drivers/net/i40e/i40e_rxtx_vec_common.h
> @@ -124,11 +124,13 @@ i40e_tx_free_bufs(struct i40e_tx_queue *txq)
> */
> txep = &txq->sw_ring[txq->tx_next_dd - (n - 1)];
> m = rte_pktmbuf_prefree_seg(txep[0].mbuf);
> + txep[0].mbuf = NULL;
> if (likely(m != NULL)) {
> free[0] = m;
> nb_free = 1;
> for (i = 1; i < n; i++) {
> m = rte_pktmbuf_prefree_seg(txep[i].mbuf);
> + txep[i].mbuf = NULL;
> if (likely(m != NULL)) {
> if (likely(m->pool == free[0]->pool)) {
> free[nb_free++] = m;
> @@ -145,6 +147,7 @@ i40e_tx_free_bufs(struct i40e_tx_queue *txq)
> } else {
> for (i = 1; i < n; i++) {
> m = rte_pktmbuf_prefree_seg(txep[i].mbuf);
> + txep[i].mbuf = NULL;
> if (m != NULL)
> rte_mempool_put(m->pool, m);
> }
> --
> 2.9.5
