From 919fdad6bc54d0ed6e2ac842770e9e77c5cbc0a6 Mon Sep 17 00:00:00 2001 From: Florin Coras Date: Tue, 6 Dec 2022 08:39:15 -0800 Subject: tcp: avoid retransmit head with no data Type: fix Signed-off-by: Florin Coras Change-Id: Iefabc7b9dd1109fd6dcf65e5d9794173421b7369 --- src/vnet/tcp/tcp_output.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c index f5035006822..95480af0f2d 100644 --- a/src/vnet/tcp/tcp_output.c +++ b/src/vnet/tcp/tcp_output.c @@ -1749,7 +1749,7 @@ tcp_retransmit_sack (tcp_worker_ctx_t * wrk, tcp_connection_t * tc, && tc->rxt_head != tc->snd_una && tcp_retransmit_should_retry_head (tc, sb)) { - max_bytes = clib_min (tc->snd_mss, tc->snd_congestion - tc->snd_una); + max_bytes = clib_min (tc->snd_mss, tc->snd_nxt - tc->snd_una); n_written = tcp_prepare_retransmit_segment (wrk, tc, 0, max_bytes, &b); if (!n_written) { -- cgit 1.2.3-korg