Re: Re: Re: [PATCH 2/3] tcp: Reduce SYN resend delay if a suspicous ACK is received

On Sat, Feb 1, 2020 at 1:08 AM SeongJae Park [off-list ref] wrote:

RST/ACK is traced if LINGER socket option is applied in the reproduce program,
and FIN/ACK is traced if it is not applied.  LINGER applied version shows the
spikes more frequently, but the main problem logic has no difference.  I
confirmed this by testing both of the two versions.

In the previous discussion, I showed the LINGER applied trace.  However, as
many other documents are using FIN/ACK, I changed the trace to FIN/ACK version
in this patchset for better understanding.  I will comment that it doesn't
matter whether it is FIN/ACK or RST/ACK in the next spin.

Great. Thanks for the details!

neal