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* [dpdk-dev] [PATCH] net/i40e: fix mbuf leak
@ 2021-08-23  1:50 chenqiming_huawei
  2021-09-13  2:29 ` Zhang, Qi Z
  0 siblings, 1 reply; 3+ messages in thread
From: chenqiming_huawei @ 2021-08-23  1:50 UTC (permalink / raw)
  To: dev; +Cc: beilei.xing, Qiming Chen, stable

From: Qiming Chen <chenqiming_huawei@163.com>

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 lead.
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: 5c9222058df7 ("i40e: move to drivers/net/")
Cc: stable@dpdk.org

Signed-off-by: Qiming Chen <chenqiming_huawei@163.com>
---
 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 026cda948c..e4dfde9171 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;
 
-- 
2.30.1.windows.1


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2021-09-16 16:16 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-08-23  1:50 [dpdk-dev] [PATCH] net/i40e: fix mbuf leak chenqiming_huawei
2021-09-13  2:29 ` Zhang, Qi Z
2021-09-16 16:16   ` Ferruh Yigit

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