From 4b458675d3df13d1a35db959fe97a04a132788b2 Mon Sep 17 00:00:00 2001 From: Qiming Chen Date: Mon, 23 Aug 2021 09:50:34 +0800 Subject: [PATCH] net/i40e: fix mbuf leak A local test found that repeated port start and stop operations during the continuous SSE vector bufflist receiving process will cause the mbuf resource to run out. The final positioning is when the port is stopped, the mbuf of the pkt_first_seg pointer is not released. Resources leak. The patch scheme is to judge whether the pointer is empty when the port is stopped, and release the corresponding mbuf if it is not empty. Fixes: 4861cde46116 ("i40e: new poll mode driver") Cc: stable@dpdk.org Signed-off-by: Qiming Chen Acked-by: Qi Zhang --- drivers/net/i40e/i40e_rxtx.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c index 8329cbdd4e..3eb82578b0 100644 --- a/drivers/net/i40e/i40e_rxtx.c +++ b/drivers/net/i40e/i40e_rxtx.c @@ -2590,6 +2590,10 @@ i40e_reset_rx_queue(struct i40e_rx_queue *rxq) #endif /* RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC */ rxq->rx_tail = 0; rxq->nb_rx_hold = 0; + + if (rxq->pkt_first_seg != NULL) + rte_pktmbuf_free(rxq->pkt_first_seg); + rxq->pkt_first_seg = NULL; rxq->pkt_last_seg = NULL; -- 2.39.5