linux-kernel - Re: [PATCH net 0/8] mptcp: misc fixes for v6.17-rc

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Message-ID: <2c241887-fa46-44ab-a518-43d9ae339009@kernel.org>
Date: Sun, 17 Aug 2025 15:50:30 +0200
From: Matthieu Baerts <matttbe@...nel.org>
To: Jakub Kicinski <kuba@...nel.org>
Cc: mptcp@...ts.linux.dev, Mat Martineau <martineau@...nel.org>,
 Geliang Tang <geliang@...nel.org>, "David S. Miller" <davem@...emloft.net>,
 Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
 Simon Horman <horms@...nel.org>, Jianguo Wu <wujianguo@...natelecom.cn>,
 Shuah Khan <shuah@...nel.org>, Jonathan Corbet <corbet@....net>,
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-kselftest@...r.kernel.org, linux-doc@...r.kernel.org,
 Christoph Paasch <cpaasch@...nai.com>, stable@...r.kernel.org,
 Thomas Dreibholz <dreibh@...ula.no>
Subject: Re: [PATCH net 0/8] mptcp: misc fixes for v6.17-rc

Hi Jakub,

On 16/08/2025 20:27, Jakub Kicinski wrote:
> On Fri, 15 Aug 2025 19:28:18 +0200 Matthieu Baerts (NGI0) wrote:
>> Here are various fixes:
>>
>> - Patch 1: Better handling SKB extension allocation failures. A fix for
>>   v5.7.
>>
>> - Patches 2, 3: Avoid resetting MPTCP limits when flushing MPTCP
>>   endpoints. With a validation in the selftests. Fixes for v5.7.
>>
>> - Patches 4, 5, 6: Disallow '0' as ADD_ADDR retransmission timeout.
>>   With a preparation patch, and a validation in the selftests. Fixes for
>>   v5.11.
>>
>> - Patches 8, 9: Fix C23 extension warnings in the selftests, spotted by
>>   GCC. Fixes for v6.16.
> 
> userspace_pm.sh which hasn't flaked in 1000 runs has flaked last night,
> with this series applied:
> https://netdev-3.bots.linux.dev/vmksft-mptcp/results/255941/8-userspace-pm-sh/

Thank you for the notification!

> Looks unrelated but also quite strange?

Indeed: the whole series should not affect the behaviour validated by
the selftests. The error messages are not very useful, and the test was
not really slower than usual. Our CI never complained about that either.
I will monitor that!

Cheers,
Matt
-- 
Sponsored by the NGI0 Core fund.