Re: [PATCH net v3 3/3] selftests: net: packetdrill: test RTO fallback after partial undo

[Eric Dumazet]

Le ven. 9 oct. 2026 à 19:15, Neal Cardwell <ncardwell.sw@xxxxxxxxx> a écrit :
>
> From: Neal Cardwell <ncardwell@xxxxxxxxxx>
>
> On Fri, Oct 9, 2026 at 1:47#AM Eric Dumazet <edumazet@xxxxxxxxxx> wrote:
>
> > Let me come back to tp->tsorted_lost_queue [1]. I was too terse there
> > ("often") and it did not get discussed.
>
> Thanks, Eric. Given that you are OK with the space overhead for a new
> tp->tsorted_lost_queue field, I think it would be quite nice to use your
> suggested approach, since it should give us better loss recovery behavior.
>
> FWIW, I asked an LLM to code up your idea, and below is what it came up with,
> in case that is useful for discussion or using. It also proposed 2 packetdrill
> tests (one that claims "This is the case that Eric suggested for segments with
> TCPCB_EVER_RETRANS."), which I can post if there is interest.
>

Excellent, thanks Neal. I will take a deeper look on Monday.