Herbert> Try reverting the changeset
Herbert> 314324121f9b94b2ca657a494cf2b9cb0e4a28cc
Herbert> which lies between these two points and may be relevant.
Matt, I pulled this out of git for you. I guess Herbert is suggesting
to patch -R the below against 2.6.12-rc5:
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 79835a6..5bad504 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -4355,16 +4355,7 @@ int tcp_rcv_established(struct sock *sk,
goto no_ack;
}
- if (eaten) {
- if (tcp_in_quickack_mode(tp)) {
- tcp_send_ack(sk);
- } else {
- tcp_send_delayed_ack(sk);
- }
- } else {
- __tcp_ack_snd_check(sk, 0);
- }
-
+ __tcp_ack_snd_check(sk, 0);
no_ack:
if (eaten)
__kfree_skb(skb);
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