Re: [PATCH net-next 0/5] mptcp: out-of-order queue pruning
From: Jakub Kicinski
Date: Mon Jul 27 2026 - 21:04:41 EST
On Fri, 24 Jul 2026 16:02:12 +0200 Matthieu Baerts (NGI0) wrote:
> Under memory pressure, a pruning of the MPTCP-level OoO queue might be
> required as last resort, to avoid too long recoveries, or even stalls.
> Geliang and Gang managed to reproduce this behaviour, and Paolo
> improved the situation thanks to the following patches:
>
> - Patches 1-2: improve the MPTCP-level retransmission schema to make
> recoveries from memory pressure/after MPTCP-level drop significantly
> faster.
>
> - Patches 2-3: make the admission check way stricter for incoming
> packets exceeding the memory limits, with some exceptions for fallback
> sockets.
>
> - Patch 5: implement OoO queue pruning for MPTCP.
Clashiko complains about a typo and has some suggestions which are
marked as Low but potentially worth addressing (stats naming?)
Please LMK if you completely disagree
--
pw-bot: cr