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 55B763009EE for ; Fri, 27 Mar 2026 18:58:44 +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=1774637924; cv=none; b=UoDWHx2NaHyxuj+F9l7cJudyaJ3OB1mhpmEGo685KUYpkzF0/Vqymr40xyZMLzUNoJ9bvkjsRf0Ez/kgR0MaY9lySdLcVF2AwPVPWilrmYtj56OJALta2s3rd8INZF3UI9CaeWCC+8j+O1gWrKUhxO/lRFgx/Mu0RGMnSpegSWs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774637924; c=relaxed/simple; bh=esokfOw+/fxId+ey8otSRTBMqKO/oy6K/0ZrVv4ZZ9o=; h=Message-ID:Date:MIME-Version:From:Subject:To:Content-Type; b=qjGISN7ZT1pxxuFh0+SHUpADAASFk9Hr2NaSTHnmlBepP6ypN8KjeNaX1GoPr6eMINDDfVtVOOdj9l3kCBLrSsuxEJJ/GsN//vZ5/b8mmhaJ5WcA4D/9Ffrmw2XHuVl4HeIjDSeC/Mwm62o/pqvnbqGZaDDU9zv6khFCabge1og= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=QcnsXJzV; 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="QcnsXJzV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 48118C19423 for ; Fri, 27 Mar 2026 18:58:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774637924; bh=esokfOw+/fxId+ey8otSRTBMqKO/oy6K/0ZrVv4ZZ9o=; h=Date:From:Subject:To:From; b=QcnsXJzVvIT3cwIz8fYEGJjKk/Yst8fleRmiuPCe/86Mhjuj/TJdtfonZ7KW3oi0n /dMBY5x3dTiam+2iT0WPmtOkJ5jNM8+QIwCBybB0uU8DxrID42E2fF/TVigvV6Hxfj GRAmkWiIbyhnQM54Qyt0Bl5q+8Gpxq58uDRajaj3LZWWrICZIgm6CNLiKVDgk1BpIM PaPA5ZT9JdemR/WOqqKnfkn3ky0KkzNOXgdXXZ5d15keKElOsnBIyLlTFetQdfSbg8 5R0TtKCAOjtAHQfuPZU0Qxugwg+UEtMWpb8yxYTPhtomKOEAtrHMN8FDd417731wlH h0s1B2fgB1EkQ== Message-ID: <8a9beead-811b-4dbb-8afd-4308fec8a0a6@kernel.org> Date: Fri, 27 Mar 2026 19:58:40 +0100 Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Beta From: Matthieu Baerts Content-Language: fr Subject: [Weekly meetings] MoM - 25th of March 2026 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 To: MPTCP Linux Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Hello everyone, This week, we had our new meeting with Mat (Cruise), and myself (NGI0 Core). Thanks again for this new good meeting! Here are the minutes of the meeting: Accepted patches: - The list of accepted patches can be seen on PatchWork: https://patchwork.kernel.org/project/mptcp/list/?state=3 netdev (if mptcp ML is in cc) (by: Li Xiasong, Matthieu Baerts, Keita Morisaki, Simon Baatz): 14449624: [net,1/5] selftests: mptcp: more stable simult_flows tests 14449625: [net,2/5] mptcp: pm: avoid sending RM_ADDR over same subflow 14449626: [net,3/5] selftests: mptcp: join: check RM_ADDR not sent over same subflow 14449627: [net,4/5] mptcp: pm: in-kernel: always mark signal+subflow endp as used 14449628: [net,5/5] selftests: mptcp: join: check removing signal+subflow endp: - Series: mptcp: misc fixes for v7.0-rc2 - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=1060560&state=*&archive=both 14460614: [net-next,v3,1/6] tcp: implement RFC 7323 window retraction receiver requirements 14460615: [net-next,v3,2/6] mptcp: keep rcv_mwnd_seq in sync with subflow rcv_wnd 14460616: [net-next,v3,3/6] tcp: increase LINUX_MIB_BEYOND_WINDOW for SKB_DROP_REASON_TCP_OVERWINDOW 14460617: [net-next,v3,4/6] selftests/net: packetdrill: add tcp_rcv_wnd_shrink_nomem.pkt 14460618: [net-next,v3,5/6] selftests/net: packetdrill: add tcp_rcv_wnd_shrink_allowed.pkt 14460619: [net-next,v3,6/6] selftests/net: packetdrill: add tcp_rcv_neg_window.pkt: - Series: tcp: RFC 7323-compliant window retraction handling - Submitter: Simon Baatz - URL: https://patchwork.kernel.org/project/mptcp/list/?series=1063485&state=*&archive=both 14483786: [net] MPTCP: fix lock class name family in pm_nl_create_listen_socket: - Submitter: Li Xiasong - URL: https://patchwork.kernel.org/project/mptcp/patch/20260319112159.3118874-1-lixiasong1@huawei.com/ 14451810: [net-next,V2,RESEND] tcp: shrink per-packet memset in __tcp_transmit_skb(): - Submitter: Keita Morisaki - URL: https://patchwork.kernel.org/project/mptcp/patch/20260304111517.2088694-1-kmta1236@gmail.com/ our repo (by: Matthieu Baerts): 14427551: [mptcp-net] mptcp: pm: in-kernel: always mark signal+subflow endp as used: - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/patch/20260218-mptcp-issue-613-v1-1-f8e9adb12010@kernel.org/ 14428224: [mptcp-net] selftests: mptcp: join: check removing signal+subflow endp: - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/patch/20260219101033.716403-2-matttbe@kernel.org/ 14429639: [mptcp-net,v2,1/2] mptcp: pm: avoid sending RM_ADDR over same subflow 14429640: [mptcp-net,v2,2/2] selftests: mptcp: join: check RM_ADDR not sent over same subflow: - Series: mptcp: pm: avoid sending RM_ADDR over the same subflow - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=1055875&state=*&archive=both 14432575: [mptcp-next] mptcp: pm: in-kernel: remove mptcp_pm_has_addr_attr_id: - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/patch/20260223-mptcp_pm_has_addr_attr_id-v1-1-1efb38ad6488@kernel.org/ 14432728: [mptcp-next] selftests: mptcp: join: recreate signal endp with same ID: - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/patch/20260223-mptcp-sft-re-use-id-v1-1-ec648a8bda22@kernel.org/ Pending patches: - The list of pending patches can be seen on PatchWork: https://patchwork.kernel.org/project/mptcp/list/?state=* netdev (if mptcp ML is in cc) (by: Li Xiasong, Matthieu Baerts): 14461679: [net-next,1/2] mptcp: better mptcp-level RTT estimator 14461680: [net-next,2/2] mptcp: add receive queue awareness in tcp_rcv_space_adjust(): - Series: mptcp: autotune related improvement - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=1063766&state=*&archive=both 14492176: [net,v2] mptcp: fix soft lockup in mptcp_recvmsg(): - Submitter: Li Xiasong - URL: https://patchwork.kernel.org/project/mptcp/patch/20260324085131.4187473-1-lixiasong1@huawei.com/ - v3 is expected. - Funny to see different AI reviews for that one: - https://sashiko.dev/#/patchset/20260324085131.4187473-1-lixiasong1%40huawei.com → Google - https://netdev-ai.bots.linux.dev/ai-review.html?id=4d7f2ec2-b646-4362-a319-b37727b095d6 → Claude on Netdev - https://netdev-ai.bots.linux.dev/ai-review.html?id=fc105106-677e-44c6-8189-ab8feef032aa → Claude on MPTCP our repo (by: Christoph Paasch, Gang Yan, Geliang Tang, Gregory Detal, Matthieu Baerts): 12282223: [RESEND,RFC,mptpcp-next] mptcp: add ooo prune support: 13070467: [mptcp-next,v4,1/2] mptcp: update mptcp_push_release 13070468: [mptcp-next,v4,2/2] mptcp: retrans for redundant sends: - State: Changes requested - Series: BPF redundant scheduler, part 3 - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=703615&state=*&archive=both - status: same as last time 13305089: [mptcp-next,1/6] mptcp: sockopt: move tcp_inq code to a dedicated function 13305091: [mptcp-next,2/6] mptcp: sockopt: update supported list 13305093: [mptcp-next,3/6] mptcp: sockopt: get val in a generic way 13305090: [mptcp-next,4/6] mptcp: sockopt: add missing getsockopt() options 13305094: [mptcp-next,5/6] mptcp: sockopt: set val in a generic way 13305092: [mptcp-next,6/6] mptcp: sockopt: support IP_TTL & IPV6_UNICAST_HOPS: - State: Changes requested - Series: mptcp: sockopt: uniform code to get/set values - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=763505&state=*&archive=both - status: same as last time 13583230: [RFC] mptcp: react scheduler when subflow events pop up: - State: Changes requested - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/patch/433320c3a9db77bea53a34fc9c43a3c7e3320399.1709693691.git.tanggeliang@kylinos.cn/ - status: same as last time 13675217: [mptcp-next,RFC,1/4] mptcp: add push sched callback 13675218: [mptcp-next,RFC,2/4] mptcp: use new push callback to schedule chunks 13675219: [mptcp-next,RFC,3/4] mptcp: bpf: allow to write to mptcp_sched_chunk 13675220: [mptcp-next,RFC,4/4] selftests/bpf: mptcp RR: send 1 MSS on each subflow: - State: RFC - Series: mptcp: update scheduler API - Submitter: Gregory Detal - URL: https://patchwork.kernel.org/project/mptcp/list/?series=856158&state=*&archive=both - status: same as last time 13932555: [1/3] mptcp: fix invalid addr occupy 'add_addr_accepted' 13932556: [2/3] selftests: mptcp: relax conditions in SYN_TX validation 13932546: [3/3] selftests: mptcp: add a testcase for invalid addr timeout: - State: Changes requested - Series: [1/3] mptcp: fix invalid addr occupy 'add_addr_accepted' - Submitter: Gang Yan - URL: https://patchwork.kernel.org/project/mptcp/list/?series=923771&state=*&archive=both - status: same as last time 14024767: [mptcp-next,v1,1/4] bpf: Add mptcp path manager struct_ops 14024768: [mptcp-next,v1,2/4] bpf: Export mptcp path manager kfuncs 14024769: [mptcp-next,v1,3/4] selftests/bpf: Add mptcp netlink pm subtest 14024770: [mptcp-next,v1,4/4] selftests/bpf: Add mptcp bpf_netlink pm subtest: - State: Changes requested - Series: BPF path manager, part 7 - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=946095&state=*&archive=both - status: same as last time 14053397: [mptcp-next,v3,1/3] mptcp: pm: userspace: drop delete_local_addr helper 14053398: [mptcp-next,v3,2/3] selftests: mptcp: join: update userspace dump_addr outputs 14053399: [mptcp-next,v3,3/3] selftests: mptcp: userspace: send RM_ADDR between server and client: - State: Under review - Series: only remove entry from local_addr_list when sending a REMOVE_ADDR - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=953862&state=*&archive=both - status: same as last time 14167004: [mptcp-next] mptcp: remove redundant orig_offset in carve_data_frag: - State: Changes requested - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/patch/9c663fc37767d9036379afdbc83cd8874a7b2fc9.1753337130.git.tanggeliang@kylinos.cn/ - status: same as last time 14175678: [mptcp-next,1/2] mptcp: Add support for SO_MAX_PACING_RATE 14175679: [mptcp-next,2/2] selftests: Add tests for SO_MAX_PACING_RATE: - State: Changes requested - Series: mptcp: Add support for SO_MAX_PACING_RATE - Submitter: Christoph Paasch - URL: https://patchwork.kernel.org/project/mptcp/list/?series=987909&state=*&archive=both - status: same as last time 14185125: [mptcp-next,1/6] mptcp: add helper for setsockopt on first subflow only 14185126: [mptcp-next,2/6] mptcp: handle SOL_SOCKET options on first subflow only 14185128: [mptcp-next,3/6] mptcp: refactor IP socket option handling for first subflow 14185127: [mptcp-next,4/6] mptcp: extract IPv6 socket option handling for first subflow 14185129: [mptcp-next,5/6] mptcp: handle SOL_TCP options on all subflows 14185130: [mptcp-next,6/6] mptcp: handle IP socket options on all subflows: - State: Needs ack - Series: refactor MPTCP socket option handling - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=990414&state=*&archive=both - status: same as last time 14185142: [mptcp-next,v2,1/3] mptcp: add IPV6_TCLASS socket option support 14185143: [mptcp-next,v2,2/3] mptcp: add IP_TTL socket option support 14185144: [mptcp-next,v2,3/3] mptcp: add IPV6_UNICAST_HOPS socket option support: - State: Needs ack - Series: mptcp: add more sockopts - Submitter: Geliang Tanghttps://github.com/sashiko-dev/sashiko/issues/50 - URL: https://patchwork.kernel.org/project/mptcp/list/?series=990418&state=*&archive=both - status: same as last time 14197780: [mptcp-next,v2,01/10] selftests: mptcp: sockopt: improve test output clarity 14197781: [mptcp-next,v2,02/10] selftests: mptcp: sockopt: add SO_REUSEADDR test helper 14197782: [mptcp-next,v2,03/10] selftests: mptcp: sockopt: add SO_REUSEPORT test 14197783: [mptcp-next,v2,04/10] selftests: mptcp: sockopt: add SO_BINDTODEVICE test 14197784: [mptcp-next,v2,05/10] selftests: mptcp: sockopt: add SO_BINDTOIFINDEX test 14197785: [mptcp-next,v2,06/10] selftests: mptcp: sockopt: add IP_FREEBIND tests 14197786: [mptcp-next,v2,07/10] selftests: mptcp: sockopt: add IP_TRANSPARENT tests 14197787: [mptcp-next,v2,08/10] selftests: mptcp: sockopt: add IP_BIND_ADDRESS_NO_PORT test 14197788: [mptcp-next,v2,09/10] selftests: mptcp: sockopt: add IP_LOCAL_PORT_RANGE test 14197789: [mptcp-next,v2,10/10] selftests: mptcp: sockopt: add IPV6_V6ONLY test: - State: Changes requested - Series: selftests: cover more MPTCP socket options - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=993905&state=*&archive=both - status: same as last time 14215849: [mptcp-net,v2,1/3] selftests: mptcp: close server file descriptor 14215850: [mptcp-net,v2,2/3] selftests: mptcp: close IPC descriptor on server side 14229120: [mptcp-next,v4,1/9] selftests: mptcp: sockopt: replace /dev/urandom with getrandom 14229121: [mptcp-next,v4,2/9] selftests: mptcp: sockopt: add protocol arguments 14229122: [mptcp-next,v4,3/9] selftests: mptcp: sockopt: add inq argument 14229123: [mptcp-next,v4,4/9] selftests: mptcp: sockopt: rename pipefd to ipcfd 14229124: [mptcp-next,v4,5/9] selftests: mptcp: sockopt: set TCP_INQ sockopt 14229125: [mptcp-next,v4,6/9] selftests: mptcp: sockopt: handle INQ on server side 14229126: [mptcp-next,v4,7/9] selftests: mptcp: sockopt: handle INQ on client side 14229127: [mptcp-next,v4,8/9] selftests: mptcp: sockopt: replace mptcp_inq with sockopt 14229128: [mptcp-next,v4,9/9] selftests: mptcp: sockopt: remove obsolete mptcp_inq: - State: Changes requested - Series: selftests: consolidate TCP_INQ testing into sockopt - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=1001827&state=*&archive=both - status: same as last time 14332026: [RFC,mptcp-next] mptcp: support net.ipv4.tcp_rcvbuf_low_rtt: - State: Changes requested - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/patch/20251127-mptcp-tcp_rcvbuf_low_rtt-v1-1-fa080d67f2e5@kernel.org/ - status: same as last time 14413156: [mptcp-net,1/3] mptcp: add backlog_list bug reproducer test 14413157: [mptcp-net,2/3] mptcp: fix receive stalls when 'ack_seq' in backlog_list 14443235: [RESEND,mptcp-net,v2] mptcp: fix stall because of data_ready: - State: Changes requested - Submitter: Gang Yan - URL: https://patchwork.kernel.org/project/mptcp/patch/20260228011511.440437-1-gang.yan@linux.dev/ - status: same as last time 14456317: [RESEND,mptcp-net] mptcp: sync the msk->sndbuf at accept() time: - State: New - Submitter: Gang Yan - URL: https://patchwork.kernel.org/project/mptcp/patch/20260306062316.1333680-1-gang.yan@linux.dev/ - TODO: Matth: check with Paolo → WIP 14460375: [mptcp-next] mptcp: preserve MSG_EOR semantics in sendmsg path: - State: New - Submitter: Gang Yan - URL: https://patchwork.kernel.org/project/mptcp/patch/20260309025431.125943-1-gang.yan@linux.dev/ - TODO: Matth: check AI review and reply → done 14472498: [RFC,mptcp-next,v5,1/7] mptcp: add sk_is_msk helper 14472499: [RFC,mptcp-next,v5,2/7] mptcp: add sock_set_nodelay 14472500: [RFC,mptcp-next,v5,3/7] mptcp: add sock_set_reuseaddr 14472501: [RFC,mptcp-next,v5,4/7] nvmet-tcp: add mptcp support 14472502: [RFC,mptcp-next,v5,5/7] mptcp: add sock_set_syncnt 14472503: [RFC,mptcp-next,v5,6/7] nvme-tcp: add mptcp support 14472504: [RFC,mptcp-next,v5,7/7] selftests: mptcp: add NVMe over MPTCP test: - State: New - Series: VME over MPTCP - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=1066056&state=*&archive=both - Depends on ↓ "mptcp: fix stall because of data_ready" 14478424: [mptcp-net,v3,1/3] mptcp: replace backlog_list with backlog_queue 14478425: [mptcp-net,v3,2/3] mptcp: fix the stall problems using backlog_queue 14478426: [mptcp-net,v3,3/3] mptcp: fix the stall problems with data_ready: - State: Changes requested - Series: mptcp: fix stall because of data_ready - Submitter: Gang Yan - URL: https://patchwork.kernel.org/project/mptcp/list/?series=1067816&state=*&archive=both - Some issues spot by AI review and during testing by Geliang 14478733: [RESEND,mptcp-next,v2,1/3] tcp: export do_tcp_splice_eof 14478734: [RESEND,mptcp-next,v2,2/3] mptcp: implement .splice_eof 14478735: [RESEND,mptcp-next,v2,3/3] selftests: mptcp: connect: trigger splice_eof: - State: New - Series: implement .splice_eof - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=1067870&state=*&archive=both - TODO: Matth: review → done 14478764: [RESEND,mptcp-next,v2,1/2] mptcp: check desc->count in read_sock 14478765: [RESEND,mptcp-next,v2,2/2] tcp: add recv_should_stop helper: - State: New - Series: add tcp_recv_should_stop helper - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=1067876&state=*&archive=both - Patch 2/2 looks OK but is not a simple refactoring as stated, but patch 1/2: - is it a fix? - or just some extra code that is not needed but doesn't hurt → in this case the patch is not needed - TODO: Matth: reply on ML → Done 14478884: [mptcp-net,v2] mptcp: fix data-race in __mptcp_retrans / mptcp_incoming_options: - State: Queued - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/patch/20260317-mptcp-data-race-snd_una-v2-1-2caac60de92a@kernel.org/ - patch is OK, but likely other places to fix as well → TODO Matth 14481348: [mptcp-next,v3,1/2] mptcp: implement psock_update_sk_prot 14481349: [mptcp-next,v3,2/2] selftests/bpf: Update sockmap tests for MPTCP: - State: New - Series: implement psock_update_sk_prot - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=1068551&state=*&archive=both - AI review found some issues: https://netdev-ai.bots.linux.dev/ai-review.html?id=57d21956-629b-4fcd-ba95-310317b0f175 - legit? 14483678: [RFC,mptcp-next,v11,01/15] tls: introduce struct tls_prot_ops for protocol ops 14483679: [RFC,mptcp-next,v11,02/15] tls: add tls_prot_ops pointer to tls_context 14483680: [RFC,mptcp-next,v11,03/15] tls: add MPTCP SKB offset check in strp queue walk 14483681: [RFC,mptcp-next,v11,04/15] mptcp: update mptcp_check_readable for TLS use 14483682: [RFC,mptcp-next,v11,05/15] mptcp: avoid sleeping in read_sock path under softirq 14483683: [RFC,mptcp-next,v11,06/15] mptcp: implement tls_mptcp_ops for MPTCP TLS 14483684: [RFC,mptcp-next,v11,07/15] tls: disable device offload for MPTCP sockets 14483685: [RFC,mptcp-next,v11,08/15] mptcp: update ULP getsockopt for TLS support 14483686: [RFC,mptcp-next,v11,09/15] mptcp: enable ULP setsockopt for TLS support 14483687: [RFC,mptcp-next,v11,10/15] selftests: mptcp: connect: use espintcp for ULP test 14483688: [RFC,mptcp-next,v11,11/15] selftests: tls: add mptcp variant for testing 14483689: [RFC,mptcp-next,v11,12/15] selftests: tls: increase nonblocking data size for MPTCP 14483690: [RFC,mptcp-next,v11,13/15] selftests: tls: wait TCP_CLOSE in shutdown_reuse for MPTCP 14483691: [RFC,mptcp-next,v11,14/15] selftests: tls: add MPTCP test cases 14483692: [RFC,mptcp-next,v11,15/15] selftests: mptcp: cover mptcp tls tests: - State: New - Series: MPTCP KTLS support - Submitter: Geliang Tang - URL: https://patchwork.kernel.org/project/mptcp/list/?series=1069182&state=*&archive=both - Needs to be reviewed 14492302: [6.1.y,1/2] selftests: mptcp: join: implicit: stop transfer after last check 14492303: [6.1.y,2/2] selftests: mptcp: join: check removing signal+subflow endp: - State: New - Series: selftests: mptcp: specific fixes for v6.1 - Submitter: Matthieu Baerts - URL: https://patchwork.kernel.org/project/mptcp/list/?series=1071541&state=*&archive=both Issues on GitHub: https://github.com/multipath-tcp/mptcp_net-next/issues/ Recently opened (latest from the last meeting: 618): None. Bugs (opened, flagged as "bug" and assigned) 575 sockopt: support `TCP_MD5SIG` and `TCP_MD5SIG_EXT` for transparent integrations [bug] @geliangtang 498 in-kernel PM: closed subflows before `RM_ADDR` will not decrement `add_addr_accepted` [bug] [pm] @geliangtang 484 BPF: `setsockopt` on an MPTCP socket: check support [bug] [bpf] @geliangtang 445 MPTCP Info counters: start seq numbers ones from 0 [bug] @geliangtang 403 userspace pm: only remove entry from `local_addr_list` when sending a `REMOVE_ADDR` [bug] [pm] @geliangtang 343 scheduler: react when subflow-level events pop up (ACK/RTO) [bug] [sched] @geliangtang Bugs (opened and flagged as "bug" and not assigned) 616 Subflow on a inactive and disconnected network path disconnects after ~16 minutes [bug] 602 A query about the update of 'msk->sk_sndbuf' [bug] 600 mptcp: avoid dropping partial packets [bug] 599 [syzbot] possible deadlock in `mptcp_subflow_create_socket`: `nbd` has a lockdep dependency between `reclaim` and `af_socket` [bug] [syzkaller] 592 Lower throughput with MPTCP vs TCP [bug] 587 in-kernel PM: Server is only using single IP to establish subflows [bug] 583 KMemLeak: from `mptcp_sk_clone_init()` [bug] [selftests] 581 Default scheduler under-utilizes newly restored subflows on long-lived flows after WAN failback [bug] 572 [syzkaller] WARNING in `skb_try_coalesce` [bug] [syzkaller] 549 pm: in-kernel: set `msk->pm.work_pending` back to `true` [bug] [pm] 492 userspace pm: subflows counter: not updated when a subflows is removed from the other end [bug] 491 selftests: `mptcp_join`: tests `Infinite map` & `MP_FAIL MP_RST` are unstable [bug] [selftests] 483 [6.1] selftests: `mptcp_connect.sh` failures with `copyfd_io_poll: poll timed out` errors [bug] [selftests] 475 `simult_flows`: unbalanced bwidth tests are unstable [bug] [selftests] 439 mptcp vs net.ipv4.tcp_shrink_window [bug] 336 Issues with BPF packet scheduler [bug] [sched] [bpf] In Progress (opened, new feature and assigned) 568 socket option: support `IPV6_TCLASS` [enhancement] @geliangtang 521 Implement psock_update_sk_prot, for eBPF SOCKMAP support [enhancement] [bpf] @geliangtang 480 MPTCP and KTLS support [enhancement] @geliangtang 434 in-kernel PM: increase subflows limit [enhancement] [pm] @matttbe 353 sockopt: uniform code to get/set values [enhancement] @matttbe 349 scheduler: (un)mark a subflow as "stale" [enhancement] [sched] @geliangtang 296 Support IP_TTL & IPV6_UNICAST_HOPS [enhancement] @matttbe 167 packetdrill: add coverage for RM_ADDR [enhancement] [packetdrill] @dcaratti 75 BPF: packet scheduler [enhancement] [sched] [bpf] @geliangtang 74 BPF: path manager [enhancement] [pm] [bpf] @geliangtang Assigned Questions (opened, questions and assigned) 548 disable mptcp for an interface [question] @matttbe Open questions (opened, questions and not assigned) 562 [performance] How much is the overhead of MPTCP？ [question] For later (opened and not assigned) 618 `TCP_RTO_MIN`/`MAX`: used configured values if any [enhancement] 610 MPTCP tree in `linux-next` [enhancement] 590 in-kernel PM: use either `subflow` or `signal` depending on connector/listener app [enhancement] 588 in-kernel PM: support NUMA awareness [enhancement] [feedback-needed] 584 [syzkaller] improve coverage [syzkaller] 578 sockopt: support `SO_MAX_PACING_RATE` to limit the whole MPTCP connection [enhancement] 566 pm: use `signal` + `subflow` + `fullmesh` [enhancement] [pm] 556 Implement all required bits to C/R MPTCP connections from user-space (CRIU) [enhancement] 552 pm: in-kernel: delay before creating new subflows [enhancement] 545 Deal with multiple pure TCP ACK without MPTCP options [enhancement] 543 TCPDump: display `MP_TCPRST` info [enhancement] 542 in-kernel PM: limit to one subflow per network interface for each connection [enhancement] [pm] 535 TCPDump: display `MP_CAPABLE` C flag [enhancement] 525 tests: cover more MPTCP socket options [enhancement] [packetdrill] [selftests] 519 Reset the connection once "MPTCP has been verified" instead of a fallback [enhancement] 511 Add MIB counters for sent `MPTCP_RST_EMPTCP` [enhancement] 497 in-kernel PM: check to create new subflows when some are destroyed [enhancement] [pm] 496 in-kernel PM: store received `ADD_ADDR` [enhancement] [pm] 481 remove refcount on TCP sockets for the timers [enhancement] 467 Scheduler: add redundant scheduler support in BPF [enhancement] [sched] 462 selftests: print (and set?) random seed [enhancement] [selftests] 461 Protocol: extend Data-Level Length field [enhancement] [protocol] 448 Allow sending ADD_ADDR IPv6 with port-number if TCP-timestamps are enabled [enhancement] 441 optimize established options generation [enhancement] 440 in-kernel PM: re-establish subflows after "network" errors [enhancement] [pm] 426 selftests: validate listener sockets with multiple accepts [enhancement] [selftests] 389 packetdrill: increase coverage for "early `close()`" cases [enhancement] [packetdrill] 350 scheduler: API changes (tasks) [enhancement] [sched] 348 scheduler: frequently probe "stale" subflow with reinjected data [enhancement] [sched] 345 scheduler: "penalise" some subflows by sending less than their cwnd [enhancement] [sched] 344 scheduler: new callback to initiate optimisations [enhancement] [sched] 337 in-kernel PM: listen socket: support "behind a NAT" use case [enhancement] [pm] 335 Server to Client subflows: option to allow joining the initial address and port [enhancement] [pm] 334 in-kernel PM: send >1 ADD_ADDR before the establishment of a new subflow [enhancement] [pm] 332 scheduler: implement a "opportunistic retransmission" [enhancement] [sched] 289 mptcp: audit comments for non inclusive language [enhancement] 273 Packetdrill: test outgoing MP_FASTCLOSE [enhancement] [packetdrill] 266 Packetdrill: add MP_FAIL coverage [packetdrill] 236 Review supported sockopts list [enhancement] 234 Packetdrill: Support MPC+DATA+checksum error [enhancement] [packetdrill] 222 Netlink event API: add SUBFLOW_CREATED event [enhancement] 215 TCP Urgent pointer and MPTCP [enhancement] 213 add MPTCP man page [enhancement] 208 better handing of ssk memory pressure in the TX path [enhancement] 202 Add sendmsg support for ancillary data [enhancement] 180 Get an update when MPTCP fall back to TCP [enhancement] 177 improve retransmit subflow selection [enhancement] 169 packetdrill: add coverage for ADD_ADDR and MP_JOIN on a different port [enhancement] [packetdrill] 150 remove completely workqueue usage [enhancement] 141 avoid acquiring mptcp_data_lock() twice in the receive path [enhancement] 78 notify the application (userspace) when a subflow is added/removed [enhancement] 41 reduce indirect call usage [enhancement] 24 Revisit layout of struct mptcp_subflow_context [enhancement] Recently closed (since 2026-03-11) 617 CI: Stalls when starting a VSOCK listening socket: soft lockups, RCU stalls, timeout [bug] [CI] @matttbe: - even got mentioned on Phoronix: https://www.phoronix.com/news/Linux-7.0-Sched-Fixes-Perf-Hang Packetdrill PRs 189 16 days ago Dwyane-Yan packetdrill: mptcp: add tests for MSG_EOR: - Matth: TODO: check that → done 162 1 month ago geliangtang mptcp: add splice test 52 1 year ago dcaratti Add initial coverage for RM_ADDR mptcp.dev PRs: / mptcp-upstream-virtme-docker PRs: / mptcpd PRs: / FYI: Current Roadmap: - Bugs: https://github.com/multipath-tcp/mptcp_net-next/issues?q=is%3Aissue+is%3Aopen+label%3Abug - Current/Coming merge window (7.1): https://github.com/orgs/multipath-tcp/projects/19 - For later: https://github.com/orgs/multipath-tcp/projects/1 Patches to send to NetDev: - Fixes for other trees: - Fixes for -net: - [664615b26a0e] mptcp: fix soft lockup in mptcp_recvmsg() (Li Xiasong): - Already sent - a new version - Fixes for net-next: / - Features for net-next: - [df303635a41d] mptcp: pm: init and release mptcp_pm_ops (Geliang Tang) - [062587ca01fa] mptcp: pm: add get_local_id() interface (Geliang Tang) - [a538a6f9bc81] mptcp: pm: add get_priority() interface (Geliang Tang): - wait for pm->lock refactoring - [c2b696680946] mptcp: better mptcp-level RTT estimator (Paolo Abeni) - [d05f4dd1b62e] mptcp: add receive queue awareness in tcp_rcv_space_adjust() (Paolo Abeni): - new version needed, see AI review → TODO Paolo (or Matth?) - [9f01ac098cb6] mptcp: pm: in-kernel: remove mptcp_pm_has_addr_attr_id (Matthieu Baerts (NGI0)) - [b56a02218c50] selftests: mptcp: join: recreate signal endp with same ID (Matthieu Baerts (NGI0)): - can wait a bit to be sent with other small refactoring - Features for net-next (next): / - Features for other trees: - [ead68f28763e] bpf: Add mptcp_subflow bpf_iter (Geliang Tang) - [5894d027dfe1] selftests/bpf: More endpoints for endpoint_init (Geliang Tang) - [355b0bf44f01] selftests/bpf: Drop cgroup_fd of run_mptcpify (Geliang Tang) - [ffc24a871489] bpf: Add mptcp packet scheduler struct_ops (Geliang Tang) - [cdfb6b9e0e23] bpf: Export mptcp packet scheduler helpers (Geliang Tang) - [f79179a227ea] selftests/bpf: Add bpf scheduler test (Geliang Tang) - [6aeb42300043] selftests/bpf: Add bpf_first scheduler & test (Geliang Tang) - [6323b7739fdf] selftests/bpf: Add bpf_bkup scheduler & test (Geliang Tang) - [00ced3af9699] selftests/bpf: Add bpf_rr scheduler & test (Geliang Tang) - [48eb8cf7400b] selftests/bpf: Add bpf_red scheduler & test (Geliang Tang) - [93825ab22e4e] selftests/bpf: Add bpf_burst scheduler & test (Geliang Tang): - wait for sched API refactoring Extra tests: - news about Syzkaller? (Matth): - now with instances running with KCSAN and KMSAN which were not enabled before because mutually exclusive with KASAN - Packetdrill (Davide): - / - Patchew (Davide): - / - CI (Matth): - https://ci-results.mptcp.dev/flakes.html - https://netdev.bots.linux.dev/flakes.html?tn-needle=mptcp - packetdrill issues with some retransmissions, to be checked what other better solutions we can have, maybe a sysctl to avoid such spurious retransmissions or do not check results in details with a kernel in debug mode (similar to what is done on NIPA) AI reviews: - MPTCP patches are also checked by Google Gemini: https://sashiko.dev/#/?list=dev.linux.lists.mptcp - Could be nice to add a link from Patchwork: TODO Matth: modify CI to poll, or check if they can add the status (one post) → Done https://github.com/sashiko-dev/sashiko/issues/50 - Could be even better to add the status result, if we have it at that time Next meeting: - Next one on Wednesday, the 8th of April. - 17:30 UTC (8.30am PDT, 5.30pm CEST, 11.30pm CST) - Still open to everyone! - https://annuel2.framapad.org/p/mptcp_upstreaming_20260408 Feel free to comment on these topics and suggest new ones for the next meeting! Talk to you soon, Matt -- Sponsored by the NGI0 Core fund.