From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1CF46235C01; Wed, 1 Oct 2025 08:50:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759308615; cv=none; b=NNoT0vpRGJe5qjr98BtMv2afrH9a03DqH240sR9pQiyq+MMkZQRj0hdnD4/f67QbyN8B4RC7pgiABB38132Enx0vFgkSECfZtENiz+qeAMXg0s+duOlLrumt0IBoeIgDqE/58tD2EiRS1CRvEPJh02u6png3/RJFt1laBuE6afE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759308615; c=relaxed/simple; bh=127sFKVwSFGHlaWI8Ni/hIckmu1j7UEDZK+h8LdQLn8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=rULl7A1CK8BNyp84x6YpTtF0QiWVxBfNvT6wM5JyVs28AL3rYsIOo5C6mMhIcA+LS5ZVlkqPBX9MhygkCq1668zhI16zrJUg0VD0QPgz4r7REkXm2OlysGeS7gfWSWyDp6Aqg/zWIOBH5beVj1t3O8v7S5A/YjCi2b2XBn4dFK0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kUgHsc9L; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="kUgHsc9L" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B4B43C4CEF4; Wed, 1 Oct 2025 08:50:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1759308614; bh=127sFKVwSFGHlaWI8Ni/hIckmu1j7UEDZK+h8LdQLn8=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=kUgHsc9L6qO0j7wvRK9/66dTOxDaVyAJig/a4L31SHR0SwDIlVqToCUHlB4U9wEHi fiT8Jfjz5f49hwvWD3Ycav3SAX2P1a8yhB/cTi4kwzMisg34S6jg54zJkUgnzDGVZJ KFeboZz0Yyt7Gfw94ZlIyKE5VCkjrdCd2HjTXgsJmNVNu6RY+3ijgYMnLDkj98q7wH IjRzxd1oYNKFYXLxmOSVecb7Vo2pKlsb3cDyZ6hw8x+Obrysj49C8uRwd/Q0bxpA6S DLhNYj7w658YbJkms4zOTtXvM9lOQZqpGjleorQTPghaRw5wRnKj4WiL5GdAFNwmoQ 3ioe/cc5ULwBg== Message-ID: <5ee6e86a-298b-41e9-971a-a40c1f96ec83@kernel.org> Date: Wed, 1 Oct 2025 10:50:08 +0200 Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Beta Subject: Re: [PATCH net-next 0/8] mptcp: receive path improvement Content-Language: en-GB, fr-BE To: Jakub Kicinski Cc: Mat Martineau , Geliang Tang , "David S. Miller" , Eric Dumazet , Paolo Abeni , Simon Horman , Neal Cardwell , Kuniyuki Iwashima , David Ahern , Shuah Khan , netdev@vger.kernel.org, mptcp@lists.linux.dev, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org References: <20250927-net-next-mptcp-rcv-path-imp-v1-0-5da266aa9c1a@kernel.org> <20250929182705.1583702f@kernel.org> From: Matthieu Baerts Autocrypt: addr=matttbe@kernel.org; keydata= xsFNBFXj+ekBEADxVr99p2guPcqHFeI/JcFxls6KibzyZD5TQTyfuYlzEp7C7A9swoK5iCvf YBNdx5Xl74NLSgx6y/1NiMQGuKeu+2BmtnkiGxBNanfXcnl4L4Lzz+iXBvvbtCbynnnqDDqU c7SPFMpMesgpcu1xFt0F6bcxE+0ojRtSCZ5HDElKlHJNYtD1uwY4UYVGWUGCF/+cY1YLmtfb WdNb/SFo+Mp0HItfBC12qtDIXYvbfNUGVnA5jXeWMEyYhSNktLnpDL2gBUCsdbkov5VjiOX7 CRTkX0UgNWRjyFZwThaZADEvAOo12M5uSBk7h07yJ97gqvBtcx45IsJwfUJE4hy8qZqsA62A nTRflBvp647IXAiCcwWsEgE5AXKwA3aL6dcpVR17JXJ6nwHHnslVi8WesiqzUI9sbO/hXeXw TDSB+YhErbNOxvHqCzZEnGAAFf6ges26fRVyuU119AzO40sjdLV0l6LE7GshddyazWZf0iac nEhX9NKxGnuhMu5SXmo2poIQttJuYAvTVUNwQVEx/0yY5xmiuyqvXa+XT7NKJkOZSiAPlNt6 VffjgOP62S7M9wDShUghN3F7CPOrrRsOHWO/l6I/qJdUMW+MHSFYPfYiFXoLUZyPvNVCYSgs 3oQaFhHapq1f345XBtfG3fOYp1K2wTXd4ThFraTLl8PHxCn4ywARAQABzSRNYXR0aGlldSBC YWVydHMgPG1hdHR0YmVAa2VybmVsLm9yZz7CwZEEEwEIADsCGwMFCwkIBwIGFQoJCAsCBBYC AwECHgECF4AWIQToy4X3aHcFem4n93r2t4JPQmmgcwUCZUDpDAIZAQAKCRD2t4JPQmmgcz33 EACjROM3nj9FGclR5AlyPUbAq/txEX7E0EFQCDtdLPrjBcLAoaYJIQUV8IDCcPjZMJy2ADp7 /zSwYba2rE2C9vRgjXZJNt21mySvKnnkPbNQGkNRl3TZAinO1Ddq3fp2c/GmYaW1NWFSfOmw MvB5CJaN0UK5l0/drnaA6Hxsu62V5UnpvxWgexqDuo0wfpEeP1PEqMNzyiVPvJ8bJxgM8qoC cpXLp1Rq/jq7pbUycY8GeYw2j+FVZJHlhL0w0Zm9CFHThHxRAm1tsIPc+oTorx7haXP+nN0J iqBXVAxLK2KxrHtMygim50xk2QpUotWYfZpRRv8dMygEPIB3f1Vi5JMwP4M47NZNdpqVkHrm jvcNuLfDgf/vqUvuXs2eA2/BkIHcOuAAbsvreX1WX1rTHmx5ud3OhsWQQRVL2rt+0p1DpROI 3Ob8F78W5rKr4HYvjX2Inpy3WahAm7FzUY184OyfPO/2zadKCqg8n01mWA9PXxs84bFEV2mP VzC5j6K8U3RNA6cb9bpE5bzXut6T2gxj6j+7TsgMQFhbyH/tZgpDjWvAiPZHb3sV29t8XaOF BwzqiI2AEkiWMySiHwCCMsIH9WUH7r7vpwROko89Tk+InpEbiphPjd7qAkyJ+tNIEWd1+MlX ZPtOaFLVHhLQ3PLFLkrU3+Yi3tXqpvLE3gO3LM7BTQRV4/npARAA5+u/Sx1n9anIqcgHpA7l 5SUCP1e/qF7n5DK8LiM10gYglgY0XHOBi0S7vHppH8hrtpizx+7t5DBdPJgVtR6SilyK0/mp 9nWHDhc9rwU3KmHYgFFsnX58eEmZxz2qsIY8juFor5r7kpcM5dRR9aB+HjlOOJJgyDxcJTwM 1ey4L/79P72wuXRhMibN14SX6TZzf+/XIOrM6TsULVJEIv1+NdczQbs6pBTpEK/G2apME7vf mjTsZU26Ezn+LDMX16lHTmIJi7Hlh7eifCGGM+g/AlDV6aWKFS+sBbwy+YoS0Zc3Yz8zrdbi Kzn3kbKd+99//mysSVsHaekQYyVvO0KD2KPKBs1S/ImrBb6XecqxGy/y/3HWHdngGEY2v2IP Qox7mAPznyKyXEfG+0rrVseZSEssKmY01IsgwwbmN9ZcqUKYNhjv67WMX7tNwiVbSrGLZoqf Xlgw4aAdnIMQyTW8nE6hH/Iwqay4S2str4HZtWwyWLitk7N+e+vxuK5qto4AxtB7VdimvKUs x6kQO5F3YWcC3vCXCgPwyV8133+fIR2L81R1L1q3swaEuh95vWj6iskxeNWSTyFAVKYYVskG V+OTtB71P1XCnb6AJCW9cKpC25+zxQqD2Zy0dK3u2RuKErajKBa/YWzuSaKAOkneFxG3LJIv Hl7iqPF+JDCjB5sAEQEAAcLBXwQYAQIACQUCVeP56QIbDAAKCRD2t4JPQmmgc5VnD/9YgbCr HR1FbMbm7td54UrYvZV/i7m3dIQNXK2e+Cbv5PXf19ce3XluaE+wA8D+vnIW5mbAAiojt3Mb 6p0WJS3QzbObzHNgAp3zy/L4lXwc6WW5vnpWAzqXFHP8D9PTpqvBALbXqL06smP47JqbyQxj Xf7D2rrPeIqbYmVY9da1KzMOVf3gReazYa89zZSdVkMojfWsbq05zwYU+SCWS3NiyF6QghbW voxbFwX1i/0xRwJiX9NNbRj1huVKQuS4W7rbWA87TrVQPXUAdkyd7FRYICNW+0gddysIwPoa KrLfx3Ba6Rpx0JznbrVOtXlihjl4KV8mtOPjYDY9u+8x412xXnlGl6AC4HLu2F3ECkamY4G6 UxejX+E6vW6Xe4n7H+rEX5UFgPRdYkS1TA/X3nMen9bouxNsvIJv7C6adZmMHqu/2azX7S7I vrxxySzOw9GxjoVTuzWMKWpDGP8n71IFeOot8JuPZtJ8omz+DZel+WCNZMVdVNLPOd5frqOv mpz0VhFAlNTjU1Vy0CnuxX3AM51J8dpdNyG0S8rADh6C8AKCDOfUstpq28/6oTaQv7QZdge0 JY6dglzGKnCi/zsmp2+1w559frz4+IC7j/igvJGX4KDDKUs0mlld8J2u2sBXv7CGxdzQoHaz lzVbFe7fduHbABmYz9cefQpO7wDE/Q== Organization: NGI0 Core In-Reply-To: <20250929182705.1583702f@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Hi Jakub, On 30/09/2025 03:27, Jakub Kicinski wrote: > On Sat, 27 Sep 2025 11:40:36 +0200 Matthieu Baerts (NGI0) wrote: >> This series includes several changes to the MPTCP RX path. The main >> goals are improving the RX performances, and increase the long term >> maintainability. >> >> Some changes reflects recent(ish) improvements introduced in the TCP >> stack: patch 1, 2 and 3 are the MPTCP counter part of SKB deferral free >> and auto-tuning improvements. Note that patch 3 could possibly fix >> additional issues, and overall such patch should protect from similar >> issues to arise in the future. >> >> Patches 4-7 are aimed at introducing the socket backlog usage which will >> be done in a later series to process the packets received by the >> different subflows while the msk socket is owned. >> >> Patch 8 is not related to the RX path, but it contains additional tests >> for new features recently introduced in net-next. > > Could be a coincidence but we got 3 simult_flows.sh flakes since this > was posted. Previous one was 20+ days ago: > https://netdev.bots.linux.dev/contest.html?ld_cnt=250&pw-pass=n&pass=0&test=simult-flows-sh Thank you for this message! Our CI didn't spot this issue in the last 2 weeks. I see it happened again on NIPA (sorry for that, and thank you for having ignored this selftest) so I guess it is not a coincidence, I'm going to investigate this issue ASAP. Cheers, Matt -- Sponsored by the NGI0 Core fund.