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From: Yongseok Koh <yskoh@mellanox.com>
To: jingjing.wu@intel.com
Cc: dev@dpdk.org, Yongseok Koh <yskoh@mellanox.com>, stable@dpdk.org
Subject: [dpdk-dev] [PATCH] app/testpmd: fix crash of txonly with multiple segments
Date: Tue, 26 Dec 2017 19:51:38 -0800	[thread overview]
Message-ID: <20171227035138.28299-1-yskoh@mellanox.com> (raw)

Running txonly mode can crash with "--txpkts=20,470". copy_len should be
properly adjusted.

Fixes: af75078fece3 ("first public release")
Cc: stable@dpdk.org

Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
---
 app/test-pmd/txonly.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/test-pmd/txonly.c b/app/test-pmd/txonly.c
index 309c73893..4ce4d61cc 100644
--- a/app/test-pmd/txonly.c
+++ b/app/test-pmd/txonly.c
@@ -104,6 +104,7 @@ copy_buf_to_pkt_segs(void* buf, unsigned len, struct rte_mbuf *pkt,
 		buf = ((char*) buf + copy_len);
 		seg = seg->next;
 		seg_buf = rte_pktmbuf_mtod(seg, char *);
+		copy_len = seg->data_len;
 	}
 	rte_memcpy(seg_buf, buf, (size_t) len);
 }
-- 
2.11.0

             reply	other threads:[~2017-12-27  3:51 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-27  3:51 Yongseok Koh [this message]
2018-01-05  1:34 ` Lu, Wenzhuo
2018-01-09 23:28   ` Thomas Monjalon

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