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 CBCF02F7AAC for ; Thu, 13 Nov 2025 07:57:28 +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=1763020648; cv=none; b=mCrfRlb1n8Zy2fYFPtfsA5VmH3uXMRryFW3yu1SJOSERJvyOv/XTV4zibF+Sia5/oyl0AzsvXoHhhn81l+tgQsvs13sCeN05ptDHZqHXxnYJiaK3fIlcGzHAdrZOi5o9ZlcySNm0RhGgGMNWqJE/NXOtdc9iwG3ArOeDN8Gzgqw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763020648; c=relaxed/simple; bh=OBWAjIWn2J7UREk8EetcvsfP1TQhiOGvIr2rkr+itiY=; h=Message-ID:Subject:From:To:Date:In-Reply-To:References: Content-Type:MIME-Version; b=fNIp41dXRzBq82f4288JByb5+nez0ENFkcSXlHRrUSePXtxmaqk7NruO3dTn4dI5YbCq11CVxuQH7jzZG2Sow0bMdocQsbZGJ7knuqU0z7deC4jRjR/lnNeYkDa0sQBYHctcKJPl3+suqYtT/Xr2NOvoBtHNqRFfFfSv7uMFcVA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qBoivHJN; 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="qBoivHJN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7960AC4CEF8; Thu, 13 Nov 2025 07:57:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1763020648; bh=OBWAjIWn2J7UREk8EetcvsfP1TQhiOGvIr2rkr+itiY=; h=Subject:From:To:Date:In-Reply-To:References:From; b=qBoivHJNkQic00jxEMx5zEEJ0Y2c6wcRYXwSaep1mxtTD8jLZSV/McD1LibyB1gVi BJy6GPJ9pVLM3DYiShh2TdQ6yyGHHkwWiuS6tOpM4/lEp+SfW1hGdIRJajCD79AUsz LDrZNOf0iwc3l6jAx98YnIq+RcrIhA+lSjRHrTMrLhAA7fpafN/u4VcZRKjaFzsvXr mrVW7tH1Dgc0w8yjKaz1uNfp8Gq2uKTdpuTF8OlVbYp22DUWYDzxpw33+DPBIwT+2u UyozfsFfIcXwDQjSQQi1hTtcY7bwU+iOCohjSXjBK9NNkcLSVnxLnpjwyFMjuzajJX udJMvBadYtlWA== Message-ID: Subject: Re: [Weekly meetings] MoM - 5th of November 2025 From: Geliang Tang To: Matthieu Baerts , MPTCP Linux Date: Thu, 13 Nov 2025 15:57:24 +0800 In-Reply-To: <5e7430ff-ef27-49ef-a295-875a8c6fdcd1@kernel.org> References: <5e7430ff-ef27-49ef-a295-875a8c6fdcd1@kernel.org> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.52.3-0ubuntu1 Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi Matt, On Wed, 2025-11-12 at 18:58 +0100, Matthieu Baerts wrote: > Hello everyone, > > Last week, we had our new meeting with Mat (Cruise), Paolo (Redhat) > 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: Matthieu Baerts): > > 14287659: [net,1/4] mptcp: drop bogus optimization in > __mptcp_check_push() > 14287660: [net,2/4] mptcp: fix MSG_PEEK stream corruption > 14287661: [net,3/4] mptcp: restore window probe > 14287662: [net,4/4] mptcp: zero window probe mib: >     - Series: mptcp: various rare sending issues >     - Submitter: Matthieu Baerts >     - URL: > https://patchwork.kernel.org/project/mptcp/list/?series=1016623&state=*&archive=both > > 14287911: [net,v3,1/4] mptcp: fix subflow rcvbuf adjust > 14287912: [net,v3,2/4] trace: tcp: add three metrics to > trace_tcp_rcvbuf_grow() > 14287913: [net,v3,3/4] tcp: add newval parameter to tcp_rcvbuf_grow() > 14287914: [net,v3,4/4] tcp: fix too slow tcp_rcvbuf_grow() action: >     - Series: tcp: fix receive autotune again >     - Submitter: Matthieu Baerts >     - URL: > https://patchwork.kernel.org/project/mptcp/list/?series=1016697&state=*&archive=both > > 14295026: [net-next,1/4] mptcp: pm: in-kernel: record fullmesh endp > nb > 14295027: [net-next,2/4] mptcp: pm: in kernel: only use fullmesh endp > if any > 14295028: [net-next,3/4] selftests: mptcp: join: do_transfer: reduce > code dup > 14295029: [net-next,4/4] selftests: mptcp: join: validate extra bind > cases: >     - Series: mptcp: pm: in-kernel: fullmesh endp nb + bind cases >     - Submitter: Matthieu Baerts >     - URL: > https://patchwork.kernel.org/project/mptcp/list/?series=1018552&state=*&archive=both > > >     our repo (by: GangYan, Matthieu Baerts, Paolo Abeni): > > 14278733: [v2,mptcp-net,1/2] mptcp: restore window probe > 14278734: [v2,mptcp-net,2/2] mptcp: zero window probe mib: >     - Series: mptcp: restore zero window probe >     - Submitter: Paolo Abeni >     - URL: > https://patchwork.kernel.org/project/mptcp/list/?series=1014382&state=*&archive=both > > 14279404: [v6,mptcp-next,01/11] mptcp: drop bogus optimization in > __mptcp_check_push() > 14279409: [v6,mptcp-next,03/11] mptcp: cleanup fallback data fin > reception > 14279407: [v6,mptcp-next,04/11] mptcp: cleanup fallback dummy mapping > generation > 14279406: [v6,mptcp-next,05/11] mptcp: fix MSG_PEEK stream corruption > 14279408: [v6,mptcp-next,06/11] mptcp: ensure the kernel PM does not > take action too late > 14279411: [v6,mptcp-next,07/11] mptcp: do not miss early first > subflow > close event notification. > 14279410: [v6,mptcp-next,08/11] mptcp: make mptcp_destroy_common() > static > 14279412: [v6,mptcp-next,09/11] mptcp: drop the __mptcp_data_ready() > helper > 14283178: [mptcp-next] Squash to "selftests: mptcp: join: validate > extra > bind cases": >     - Submitter: Matthieu Baerts >     - URL: > https://patchwork.kernel.org/project/mptcp/patch/20251024-sft-fix-bind-timeout-v1-1-cb81a67b222c@kernel.org/ > > 14295242: [mptcp-net,v2,1/6] selftests: mptcp: connect: fix fallback > note due to OoO > 14295243: [mptcp-net,v2,2/6] selftests: mptcp: join: rm: set backup > flag > 14295244: [mptcp-net,v2,3/6] selftests: mptcp: join: endpoints: > longer > transfer > 14295245: [mptcp-net,v2,4/6] selftests: mptcp: join: userspace: > longer > transfer > 14295246: [mptcp-net,v2,5/6] selftests: mptcp: join: fastclose: drop > plain RST > 14295247: [mptcp-net,v2,6/6] selftests: mptcp: connect: trunc: read > all > recv data: >     - Series: selftests: mptcp: join: fix flaky tests >     - Submitter: Matthieu Baerts >     - URL: > https://patchwork.kernel.org/project/mptcp/list/?series=1018612&state=*&archive=both > > 14297102: [mptcp-next,1/5] selftests: mptcp: lib: introduce > 'nstat_{init,get}' > 14297103: [mptcp-next,2/5] selftests: mptcp: lib: remove stats files > args > 14297104: [mptcp-next,3/5] selftests: mptcp: lib: stats: remove nstat > rate columns > 14297105: [mptcp-next,4/5] selftests: mptcp: join: dump stats from > history > 14297106: [mptcp-next,5/5] selftests: mptcp: lib: get counters from > nstat history: >     - Series: selftests: mptcp: get counters from nstat history >     - Submitter: Matthieu Baerts >     - URL: > https://patchwork.kernel.org/project/mptcp/list/?series=1019082&state=*&archive=both > > 14298228: [mptcp-net] mptcp: fix address removal logic in > mptcp_pm_nl_rm_addr: >     - Submitter: GangYan >     - URL: > https://patchwork.kernel.org/project/mptcp/patch/20251104123416.395362-1-gang.yan@linux.dev/ > > 14298615: [mptcp-next,v8,1/4] mptcp: handle first subflow closing > consistently > 14298614: [mptcp-next,v8,2/4] mptcp: borrow forward memory from > subflow > 14298616: [mptcp-next,v8,3/4] mptcp: introduce mptcp-level backlog > 14298617: [mptcp-next,v8,4/4] mptcp: leverage the backlog for RX > packet > processing: >     - Series: mptcp: introduce backlog processing >     - Submitter: Paolo Abeni >     - URL: > https://patchwork.kernel.org/project/mptcp/list/?series=1019535&state=*&archive=both > > > > 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: Jiayuan Chen): > > 14299873: [net,v4,1/3] mptcp: disallow MPTCP subflows from sockmap > 14299851: [net,v4,2/3] net,mptcp: fix proto fallback detection with > BPF > 14299874: [net,v4,3/3] selftests/bpf: Add mptcp test with sockmap: >     - Series: mptcp: Fix conflicts between MPTCP and sockmap >     - Submitter: Jiayuan Chen >     - URL: > https://patchwork.kernel.org/project/mptcp/list/?series=1019848&state=*&archive=both > > > 14296835: [6.12.y-5.10.y] selftests: mptcp: connect modes: re-add > exec mode: >     - State: New >     - Submitter: Matthieu Baerts >     - URL: > https://patchwork.kernel.org/project/mptcp/patch/20251103165433.6396-2-matttbe@kernel.org/ >     - cannot be applied because they use Quilt > > 14298196: [6.12.y] mptcp: fix MSG_PEEK stream corruption: >     - State: New >     - Submitter: Matthieu Baerts >     - URL: > https://patchwork.kernel.org/project/mptcp/patch/20251104121515.1093006-2-matttbe@kernel.org/ > > >     our repo (by: Christoph Paasch, Gang Yan, Geliang Tang, Gregory > Detal, Matthieu Baerts, Paolo Abeni): > > 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 > > 14102233: [mptcp-next,v3,1/3] selftests/bpf: Add sndbuf for > send_recv_data > 14102235: [mptcp-next,v3,2/3] Squash to "selftests/bpf: Add bpf > scheduler test" > 14102234: [mptcp-next,v3,3/3] DO-NOT-MERGE: selftests/bpf: Increase > total_bytes of bpf sched tests: >     - State: Changes requested >     - Series: send() fails with EAGAIN in blocking IO mode "487 >     - Submitter: Geliang Tang >     - URL: > https://patchwork.kernel.org/project/mptcp/list/?series=967210&state=*&archive=both >     - status: same as last time #487 has been fixed by Paolo. So these patches can be dropped. I just changed the states of them as "Rejected". Thanks, -Geliang > > 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 Tang >     - 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 > > 14280548: [mptcp-next,v13,1/8] mptcp: add eat_recv_skb helper > 14280549: [mptcp-next,v13,2/8] mptcp: implement .read_sock > 14280550: [mptcp-next,v13,3/8] tcp: add recv_should_stop helper > 14280551: [mptcp-next,v13,4/8] mptcp: use recv_should_stop helper > 14280552: [mptcp-next,v13,5/8] tcp: export tcp_splice_state > 14280553: [mptcp-next,v13,6/8] mptcp: implement .splice_read > 14280554: [mptcp-next,v13,7/8] selftests: mptcp: add splice io mode > 14280555: [mptcp-next,v13,8/8] selftests: mptcp: connect: cover > splice mode: >     - State: New >     - Series: implement mptcp read_sock >     - Submitter: Geliang Tang >     - URL: > https://patchwork.kernel.org/project/mptcp/list/?series=1014823&state=*&archive=both >     - Mat will have a look at it > > 14299105: [v2,mptcp-next,1/7] trace: mptcp: add mptcp_rcvbuf_grow > tracepoint > 14299106: [v2,mptcp-next,2/7] mptcp: avoid unneeded subflow-level > drops. > 14299107: [v2,mptcp-next,3/7] mptcp: fix receive space timestamp > initialization. > 14299108: [v2,mptcp-next,4/7] mptcp: consolidate rcv space init > 14299109: [v2,mptcp-next,5/7] mptcp: better rcv space initialization > 14299110: [v2,mptcp-next,6/7] mptcp: better mptcp-level rtt estimator > 14299111: [v2,mptcp-next,7/7] mptcp: add receive queue awareness in > tcp_rcv_space_adjust(): >     - State: New >     - Series: mptcp: autotune related improvement >     - Submitter: Paolo Abeni >     - URL: > https://patchwork.kernel.org/project/mptcp/list/?series=1019624&state=*&archive=both > > 14299674: [mptcp-next,v6,1/7] tcp: md5: remove redundant l3flag > variable > 14299675: [mptcp-next,v6,2/7] mptcp: handle TCP_MAXSEG getsockopt in > common case > 14299676: [mptcp-next,v6,3/7] mptcp: setsockopt support for > TCP_MD5SIG > 14299677: [mptcp-next,v6,4/7] selftests: mptcp: sockopt: add md5 > argument > 14299678: [mptcp-next,v6,5/7] selftests: mptcp: sockopt: implement > TCP_MD5SIG support > 14299679: [mptcp-next,v6,6/7] selftests: mptcp: sockopt: skip > getsockopt > for MD5 tests > 14299680: [mptcp-next,v6,7/7] selftests: mptcp: sockopt: add > TCP_MD5SIG > test cases: >     - State: New >     - Series: mptcp: TCP_MD5SIG support >     - Submitter: Geliang Tang >     - URL: > https://patchwork.kernel.org/project/mptcp/list/?series=1019796&state=*&archive=both >     - Matth: will check that > > 14300058: [mptcp-net,1/2] mptcp: decouple mptcp fastclose from tcp > close > 14300059: [mptcp-net,2/2] mptcp: fix duplicate reset on fastclose: >     - State: New >     - Series: [mptcp-net,1/2] mptcp: decouple mptcp fastclose from > tcp close >     - Submitter: Paolo Abeni >     - URL: > https://patchwork.kernel.org/project/mptcp/list/?series=1019919&state=*&archive=both > > > > Issues on GitHub: >     https://github.com/multipath-tcp/mptcp_net-next/issues/ > >     Recently opened (latest from the last meeting: 593): > >   596  selftests: `mptcp_join`: fastclose also generate "plain" RST > [bug] [selftests] @pabeni: >       - See patches above > >   595  selftests: `mptcp_connect`: MPTCP -> MPTCP timeout during > closing > time [bug] [selftests]: >       - tried to reproduce the issue but no luck so far. >       - It is possible multiple data fin can be sent with different > sequences: in this case, we might ignore the following data_fin >       - Matth: TODO: check previous packet traces when that might > have > happened → done > >   594  selftests: `mptcp_connect`: MPTCP -> TCP timeout during > closing > time [bug] [selftests]: >       - tried to reproduce with a packetdrill test >       - maybe try with no delay: it will depend on when the worker > processes the FIN >       - and also read the last bytes carried in the FIN >       - and also injecting more data without reading them >       - TODO Matth: check ↑ → done > > >     Recently discussed > >   592  Lower throughput with MPTCP vs TCP [bug]: >       - HW GRO seems to be the culprit: it would be good to start > discussing with NICs vendors (NVidia, Intel, etc.). It **might** be > easy > to add some exceptions for MPTCP in some NIC firmwares. Who has > contact > and/or could help to find the right people to talk to? > >       - Strange TCP is not even higher, maybe because the limitation > for > TCP was the IO? (check with 'iperf3 -Z' and/or iotop) If yes, maybe > we > can never do better than TCP connections in this case. Or then the > test > case is maybe not realistic: it might be different with many > applications and all sort of data to different hosts? Or maybe only > the > resilience is important here, and doing as good as TCP is fine? > >       - It would be interesting to do the same validations on top of > Paolo's pending series (EDIT: one left as of today, the rest is in > our > `export` branch), because there are new optimisations, especially > when > the latency is very short like what you would have on the same host > or > in a DC. > >   591  in-kernel PM: not established paths when used with IPv6 > link-local addresses [bug]: >       - Can be closed? >       - TODO Matth → Done > >   588  in-kernel PM: support NUMA awareness [enhancement] [feedback- > needed]: >       - Maybe BPF PM is the solution > >   549  pm: in-kernel: set `msk->pm.work_pending` back to `true` [bug] > [selftests] [pm]: >       - New comment from Gang: to be checked > > >     Bugs (opened, flagged as "bug" and assigned) > >   596  selftests: `mptcp_join`: fastclose also generate "plain" RST > [bug] [selftests] @pabeni >   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) > >   595  selftests: `mptcp_connect`: MPTCP -> MPTCP timeout during > closing > time [bug] [selftests] >   594  selftests: `mptcp_connect`: MPTCP -> TCP timeout during > closing > time [bug] [selftests] >   592  Lower throughput with MPTCP vs TCP [bug] >   591  in-kernel PM: not established paths when used with IPv6 > link-local addresses [bug] >   587  in-kernel PM: Server is only using single IP to establish > subflows [bug] >   586  [syzkaller] WARNING in `subflow_data_ready` [bug] [syzkaller] >   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] >   574  [selftests] `mptcp_connect.sh`: `copyfd_io_poll`: poll timed > out > [bug] [selftests] >   572  [syzkaller] WARNING in `skb_try_coalesce` [bug] [syzkaller] >   567  [syzbot] WARNING in `__mark_subflow_endp_available` [bug] > [syzkaller] [reproducer] >   561  [syzkaller]  WARNING in `mptcp_pm_alloc_anno_list` [bug] > [syzkaller] >   549  pm: in-kernel: set `msk->pm.work_pending` back to `true` [bug] > [selftests] [pm] >   508  Divide error on device removal [bug] [feedback-needed] >   505  Subflows won't be used when the interface for the main flow is > a > subinterface [bug] [feedback-needed] >   495  [syzkaller] KASAN: slab-use-after-free Read in > `__inet6_lookup_established` [bug] [syzkaller] >   494  [syzkaller] WARNING in `__skb_flow_dissect` [bug] [syzkaller] >   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] >   476  packetdrill: coalescing feature doesn't take into account > MPTCP > options [bug] [packetdrill] >   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] >   325  selftests: `mptcp_join`: test 18 `signal addresses race test` > is > sometimes failing [bug] [selftests] >   324  selftests: `mptcp_join`: tests `fastclose test` & `fastclose > server test` are sometimes failing [bug] [selftests] >   315  Issues with backup flow [bug] > > >     In Progress (opened, new feature and assigned) > >   568  socket option: support `IPV6_TCLASS` [enhancement] > @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] >   530  about mptcp subflow creation question [question] [feedback- > needed] >   520  Question about proper MPTCP configuration over VPN. [question] > [feedback-needed] >   412  shadowsocks-libev not working, need guidance for PM > configuration > [question] [feedback-needed] > > >     For later (opened and not assigned) > >   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] >   521  Implement psock_update_sk_prot, for eBPF SOCKMAP support > [enhancement] >   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] >   396  ci: periodically run selftests from the export branch on > stable > kernels [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] >   298  CG Memory accounting for passive MPTCP socket [enhancement] >   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] >   197  more mibs needed [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] > > >     Recently closed (since 2025-10-22) > >   593  New MPTCP connections won't be created if there's no > connectivity > on primary subflow [question]: >       - Could be possible to handle that on MPTCP side, but it > doesn't > seem easy, and it might break expectations from userspace. Better to > handle that with routes. > >   589  selftests: `simult_flows`: "unbalanced bwidth with opposed, > unbalanced delay" is unstable [bug] [selftests] @geliangtang > > >     Packetdrill PRs > >   181  22 hours ago  matttbe      mptcp: new DATA_FIN retrans tests: >       - New test, passing, can be merged if reviews are OK > >   180  12 days ago   matttbe      mptcp: unskip TCP_NOTSENT_LOWAT > test: >       - Seems passing now, can be merged if reviews are OK > >   162  4 months ago  geliangtang  mptcp: add splice test: >       - TODO: Matth: check with Geliang if he plans to update it → > Done > >   52   9 months ago  dcaratti     Add initial coverage for RM_ADDR > > >     mptcp.dev PRs > > / > >     mptcpd PRs > >   327  21 days ago  matttbe  man: plugin-dir: not world writable >   326  1 hour ago   matttbe  flags: add 'laminar' endpoints support >   323  27 days ago  matttbe  interface: add `deny_join_id0` parameter > > > > > FYI: Current Roadmap: >     - Bugs: > https://github.com/multipath-tcp/mptcp_net-next/issues?q=is%3Aissue+is%3Aopen+label%3Abug >     - Current/Coming merge window (6.19): > https://github.com/orgs/multipath-tcp/projects/17 >     - For later: https://github.com/orgs/multipath-tcp/projects/1 > > > > Patches to send to NetDev: > >     - Fixes for other trees: > >         - [f35023f92ed5] selftests: bpf: fix recent compilation > errors > (Matthieu Baerts (NGI0)) >         - [a7cb48db2368] gcov: add support for GCC 15 (Peter > Oberparleiter) > >     - Fixes for -net: > >         - [fa4c16e5903b] selftests: mptcp: connect: fix fallback note > due to OoO (Matthieu Baerts (NGI0)) >         - [b00cc0dfd3ef] selftests: mptcp: join: rm: set backup flag > (Matthieu Baerts (NGI0)) >         - [db4e86a2e6c2] selftests: mptcp: join: endpoints: longer > transfer (Matthieu Baerts (NGI0)) >         - [732cf2c50ddb] selftests: mptcp: join: userspace: longer > transfer (Matthieu Baerts (NGI0)) >         - [eb98322c2d06] selftests: mptcp: join: fastclose: drop > plain > RST (Matthieu Baerts (NGI0)): >             - Will be dropped soon > >         - [604f4ade5c21] selftests: mptcp: connect: trunc: read all > recv > data (Matthieu Baerts (NGI0)) >         - [3c6e894585f2] mptcp: fix address removal logic in > mptcp_pm_nl_rm_addr (Gang Yan) > >     - Fixes for net-next: / > >     - Features for net-next: > >         - [8aa057db1bba] mptcp: pm: init and release mptcp_pm_ops > (Geliang Tang) >         - [fd8a6842c53a] mptcp: pm: add get_local_id() interface > (Geliang Tang) >         - [07d670ca1d24] mptcp: pm: add get_priority() interface > (Geliang Tang): >             - blocked by pm->lock refactoring that is needed > >         - [ffaa4e7399dc] mptcp: cleanup fallback data fin reception > (Paolo Abeni) >         - [8c97e58c6aea] mptcp: cleanup fallback dummy mapping > generation (Paolo Abeni): >             - there might be a fix for that > >         - [6628958a45a2] mptcp: ensure the kernel PM does not take > action too late (Paolo Abeni) >         - [692254038cb1] mptcp: do not miss early first subflow close > event notification (Paolo Abeni) >         - [9f8782509d81] mptcp: make mptcp_destroy_common() static > (Paolo Abeni) >         - [440bbc559b86] mptcp: drop the __mptcp_data_ready() helper > (Paolo Abeni) >         - [6148a584cce9] mptcp: handle first subflow closing > consistently (Paolo Abeni) >         - [6d5d949d5258] mptcp: borrow forward memory from subflow > (Paolo Abeni) >         - [7984871487f7] mptcp: introduce mptcp-level backlog (Paolo > Abeni) >         - [8afd86c5dc49] mptcp: leverage the backlog for RX packet > processing (Paolo Abeni): >             - wait for the fix > >         - [5d9a58722e9c] selftests: mptcp: lib: introduce > 'nstat_{init,get}' (Matthieu Baerts (NGI0)) >         - [e5aad6ad52b4] selftests: mptcp: lib: remove stats files > args > (Matthieu Baerts (NGI0)) >         - [0cdbeae681cb] selftests: mptcp: lib: stats: remove nstat > rate > columns (Matthieu Baerts (NGI0)) >         - [e500e971e1bb] selftests: mptcp: join: dump stats from > history > (Matthieu Baerts (NGI0)) >         - [22e437406bc4] selftests: mptcp: lib: get counters from > nstat > history (Matthieu Baerts (NGI0)): >             - should be sent after the ones for net + merge with net- > next > >     - Features for net-next (next): / > >     - Features for other trees: > >         - [be06d52e341d] bpf: Add mptcp_subflow bpf_iter (Geliang > Tang) >         - [599fef9658dd] selftests/bpf: More endpoints for > endpoint_init > (Geliang Tang) >         - [4f16da3ca774] selftests/bpf: Drop cgroup_fd of > run_mptcpify > (Geliang Tang) >         - [2eff5ee21d70] bpf: Add mptcp packet scheduler struct_ops > (Geliang Tang) >         - [0d54dd03ab0d] bpf: Export mptcp packet scheduler helpers > (Geliang Tang) >         - [2aca918a8b6e] selftests/bpf: Add bpf scheduler test > (Geliang > Tang) >         - [c4d2d29ba444] selftests/bpf: Add bpf_first scheduler & > test > (Geliang Tang) >         - [b65f96d93233] selftests/bpf: Add bpf_bkup scheduler & test > (Geliang Tang) >         - [84e47205025f] selftests/bpf: Add bpf_rr scheduler & test > (Geliang Tang) >         - [df0031f69a5c] selftests/bpf: Add bpf_red scheduler & test > (Geliang Tang) >         - [b81ba7f0c095] selftests/bpf: Add bpf_burst scheduler & > test > (Geliang Tang): >             - waiting for a refactoring of the sched API > > > > > Extra tests: >     - news about Syzkaller? (Matth): >         - Some issues there, but not reproduceable: > https://syzkaller.appspot.com/upstream/s/mptcp >             - maybe: a memory corruption elsewhere? >             - not reproduced for one month > >     - Packetdrill (Davide): >         - / > >     - Patchew (Davide): >         - Was down this WE, but fixed by Davide > >     - CI (Matth): >         - https://ci-results.mptcp.dev/flakes.html >         - https://netdev.bots.linux.dev/flakes.html?tn-needle=mptcp >         - / > > > > Next meeting: >     - Next one on Wednesday, the 19th of November. >     - 17:30 UTC (8.30am PDT, 5.30pm CEST, 11.30pm CST) >     - Still open to everyone! >     - https://annuel2.framapad.org/p/mptcp_upstreaming_20251119 > > > > Feel free to comment on these topics and suggest new ones for the > next > meeting! > > Talk to you soon, > Matt