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* [Weekly meetings] MoM - 9th of April 2025
@ 2025-04-10 16:38 Matthieu Baerts
  0 siblings, 0 replies; only message in thread
From: Matthieu Baerts @ 2025-04-10 16:38 UTC (permalink / raw)
  To: MPTCP Linux

Hello everyone,

Yesterday, 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: Matthieu Baerts):

14032093: [net,1/4] mptcp: fix NULL pointer in can_accept_new_subflow
14032094: [net,2/4] selftests: mptcp: fix incorrect fd checks in main_loop
14032095: [net,3/4] selftests: mptcp: close fd_in before returning in
main_loop
14032096: [net,4/4] selftests: mptcp: ignore mptcp_diag binary:
    - Series: mptcp: misc. fixes for 6.15-rc0
    - Submitter: Matthieu Baerts
    - URL:
https://patchwork.kernel.org/project/mptcp/list/?series=948084&state=*&archive=both

14041515: [net,1/2] mptcp: only inc MPJoinAckHMacFailure for HMAC failures
14041516: [net,2/2] selftests: mptcp: validate MPJoin HMacFailure counters:
    - Series: mptcp: only inc MPJoinAckHMacFailure for HMAC failures
    - Submitter: Matthieu Baerts
    - URL:
https://patchwork.kernel.org/project/mptcp/list/?series=950742&state=*&archive=both


    our repo (by: Matthieu Baerts):

14032736: [mptcp-next,1/5] mptcp: only inc MPJoinAckHMacFailure for HMAC
failures
14032737: [mptcp-next,2/5] selftests: mptcp: validate MPJoin HMacFailure
counters
14032738: [mptcp-next,3/5] mptcp: pass right struct to subflow_hmac_valid
14032739: [mptcp-next,4/5] mptcp: add MPJoinRejected MIB counter
14032740: [mptcp-next,5/5] selftests: mptcp: validate MPJoinRejected
counter:
    - Series: mptcp: fix MPJoinAckHMacFailure, add MPJoinRejected
    - Submitter: Matthieu Baerts
    - URL:
https://patchwork.kernel.org/project/mptcp/list/?series=948274&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: Matthieu Baerts, Stefan
Metzmacher, Yunsheng Lin):

13897129: [net-next,v2,09/10] net: replace page_frag with page_frag_cache

14024259: [bpf-next/net,v3,1/5] bpf: Register mptcp common kfunc set
14024260: [bpf-next/net,v3,2/5] bpf: Add mptcp_subflow bpf_iter
14024261: [bpf-next/net,v3,3/5] selftests/bpf: More endpoints for
endpoint_init
14024262: [bpf-next/net,v3,4/5] selftests/bpf: Add mptcp_subflow
bpf_iter subtest
14024263: [bpf-next/net,v3,5/5] selftests/bpf: Drop cgroup_fd of
run_mptcpify:
    - Series: bpf: Add mptcp_subflow bpf_iter support
    - Submitter: Matthieu Baerts
    - URL:
https://patchwork.kernel.org/project/mptcp/list/?series=946008&state=*&archive=both
    - waiting for some feedback from the BPF maintainers

14033909: [RFC,1/4] net: introduce get_optlen() and put_optlen() helpers
14033910: [RFC,2/4] net: pass 'optlen_t' to proto[ops].getsockopt() hooks:
14033911: [RFC,3/4] net: pass a kernel pointer via 'optlen_t' to
proto[ops].getsockopt() hooks:
14033912: [RFC,4/4] io_uring: let io_uring_cmd_getsockopt() allow level
other than SOL_SOCKET:
    - Series: net/io_uring: pass a kernel pointer via optlen_t to
proto[_ops].getsockopt()
    - Submitter: Stefan Metzmacher
    - URL:
https://patchwork.kernel.org/project/mptcp/list/?series=948670&state=*&archive=both
    - Modifying MPTCP but the same way as in other parts of the kernel.


    our repo (by: Gang Yan, Geliang Tang, Gregory Detal, Matthieu
Baerts, zhenwei pi):

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

13750069: [mptcp-next,1/4] selftests: mptcp: add cfg_timeo for mptcp_connect
13750070: [mptcp-next,2/4] selftests: mptcp: add io thread mode for
mptcp_connect
13750071: [mptcp-next,3/4] selftests: mptcp: enable io thread mode
13750072: [mptcp-next,4/4] selftests: mptcp: join: add io thread tests:
    - State: Changes requested
    - Series: add io thread mode tests
    - Submitter: Geliang Tang
    - URL:
https://patchwork.kernel.org/project/mptcp/list/?series=875830&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

14031600: [mptcp-next,v6,1/5] mptcp: pm: call pm worker handler without
pm lock
14031601: [mptcp-next,v6,2/5] mptcp: pm: add accept_new_subflow() interface
14031602: [mptcp-next,v6,3/5] mptcp: pm: add established() interface
14031603: [mptcp-next,v6,4/5] mptcp: pm: add subflow_established() interface
14031604: [mptcp-next,v6,5/5] mptcp: pm: drop is_userspace in
subflow_check_next:
    - State: New
    - Series: BPF path manager, part 6
    - Submitter: Geliang Tang
    - URL:
https://patchwork.kernel.org/project/mptcp/list/?series=947940&state=*&archive=both
    - Matth will look at how the pm->lock is handled

14034338: [mptcp-next,1/4] mptcp: pm: add accept_address helper
14034339: [mptcp-next,2/4] mptcp: pm: add accept_new_address() interface
14034340: [mptcp-next,3/4] mptcp: pm: add add_addr_received() interface
14034341: [mptcp-next,4/4] mptcp: pm: add rm_addr_received() interface:
    - State: New
    - Series: BPF path manager, part 7
    - Submitter: Geliang Tang
    - URL:
https://patchwork.kernel.org/project/mptcp/list/?series=948762&state=*&archive=both
    - the PM ops should look like this:

        /* required, call from the subflow context */
        int (*get_local_id)(struct mptcp_sock *msk,
                            struct mptcp_pm_addr_entry *skc);
        bool (*get_priority)(struct mptcp_sock *msk,
                             struct mptcp_addr_info *skc);
        bool (*accept_new_subflow)(struct mptcp_sock *msk, bool allow);

        /* optional, call from the msk context */
        void (*established)(struct mptcp_sock *msk);
        void (*subflow_established)(struct mptcp_sock *msk);
        void (*add_addr_received)(struct mptcp_sock *msk);
        void (*rm_addr_received)(struct mptcp_sock *msk, u8 rm_id);

    - looks good!

14035512: [mptcp-next,1/3] mptcp: pm: userspace: local_addr_used-- after
sending REMOVE_ADDR
14035513: [mptcp-next,2/3] mptcp: pm: userspace: drop delete_local_addr
helper
14035514: [mptcp-next,3/3] selftests: mptcp: send REMOVE_ADDR after
subflow is deleted:
    - State: Changes requested
    - 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=949152&state=*&archive=both
    - Not clear if it changes the behaviour or not, if it can be
backported or not.
    - Mat will check if it does change the behaviour.
    - Matth will check later.

14036875: [mptcp-next] selftests: mptcp: diag: use mptcp_lib_get_info_value:
    - State: New
    - Submitter: Geliang Tang
    - URL:
https://patchwork.kernel.org/project/mptcp/patch/e34e86805f3fe69e0aec08c83c596c49799573c7.1743666387.git.tanggeliang@kylinos.cn/
    - Matth will look at that

14039147: [mptcp-next] mptcp: pm: drop redundant mptcp_pm_send_ack:
    - State: New
    - Submitter: Geliang Tang
    - URL:
https://patchwork.kernel.org/project/mptcp/patch/539ce4556220df3d2ea4826c311c5bc4e306f9a2.1743863553.git.tanggeliang@kylinos.cn/

14039908: [mptcp-next] selftests: mptcp: diag: drop nlh parameter of
recv_nlmsg:
    - State: New
    - Submitter: Geliang Tang
    - URL:
https://patchwork.kernel.org/project/mptcp/patch/0a7cb982ea5886c2f00e69703feb92c3934dcd63.1744012385.git.tanggeliang@kylinos.cn/
    - Matth will look at that

14044104: [mptcp-next,v2] selftests: mptcp: use IPPROTO_MPTCP for
getaddrinfo:
    - State: New
    - Submitter: Geliang Tang
    - URL:
https://patchwork.kernel.org/project/mptcp/patch/77efff47e3cace7d2dd9a1394d3ece4e234a5e74.1744178165.git.tanggeliang@kylinos.cn/
    - Matth will look at that
    - linked: https://github.com/valkey-io/valkey/pull/1811




Extra, just in case

    deferred (by: Gang Yan):

14044189: [v2,1/2] BCC: Python: Support 'fmod_ret' method for eBPF
14044190: [v2,2/2] BCC: python: add a useful tool for mptcp:
    - Series: BCC: python: support fmod_ret
    - Submitter: Gang Yan
    - URL:
https://patchwork.kernel.org/project/mptcp/list/?series=951422&state=*&archive=both
    - A PR has been opened: https://github.com/iovisor/bcc/pull/5274



Issues on GitHub:
    https://github.com/multipath-tcp/mptcp_net-next/issues/

    Recently opened (latest from the last meeting: 555):

/


    Bugs (opened, flagged as "bug" and assigned)

  498  in-kernel PM: closed subflows before `RM_ADDR` will not decrement
`add_addr_accepted` [bug] [pm] @geliangtang
  487  `send()` fails with `EAGAIN` in blocking IO mode [bug]
[selftests] [sched] @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)

  555  [syzbot] WARNING in `mptcp_do_fallback` [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)

  514  Add MIB counters for fallback to TCP [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)

  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)

  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]
  536  PM: new subflow: avoid selecting initial endpoint upon `ADD_ADDR`
reception if servers deny MPJ to initial address [enhancement] [pm]
  535  TCPDump: display `MP_CAPABLE` C flag [enhancement]
  532  Userspace PM doesn't have access to `allow_join_id0` /
`allow_join_initial_addr_port` bit from the SYN-ACK [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]
  515  Add `TCP_MAXSEG` socket option support [enhancement]
  511  Add MIB counters for sent `MPTCP_RST_EMPTCP` [enhancement]
  503  in-kernel PM: use endpoints only to create subflows with received
`ADD_ADDR` [enhancement] [pm]
  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]
   41  reduce indirect call usage [enhancement]
   24  Revisit layout of struct mptcp_subflow_context [enhancement]


    Recently closed (since 2025-03-26)

  554  Observing significant delays (>30 seconds) on "handover" to
subflow [bug] [pm]
  553  MPTCP backup subflow compatibility [question] [feedback-needed]
@matttbe
  538  [syzkaller] general protection fault in `put_page` (4) [bug]
[syzkaller] [reproducer]
  416  No new subflow when removing an endpoint and adding a new one
[bug] [feedback-needed]


    Packetdrill PRs

  52  2 months ago  dcaratti  Add initial coverage for RM_ADDR


    mptcp.dev PRs

/

    mptcpd PRs

  314  2 months ago  matttbe  musl compat



FYI: Current Roadmap:
    - Bugs:
https://github.com/multipath-tcp/mptcp_net-next/issues?q=is%3Aissue+is%3Aopen+label%3Abug
    - Current/Coming merge window (6.16):
https://github.com/orgs/multipath-tcp/projects/14
    - For later: https://github.com/orgs/multipath-tcp/projects/1

    - The changelog has been updated:
https://github.com/multipath-tcp/mptcp_net-next/wiki#changelog



Patches to send to NetDev:

    - Fixes for other trees:

        - [984f05547107] fwctl/cxl: Fix uuid_t usage in uapi (Dan Williams)

    - Fixes for -net: /


    - Fixes for net-next: /


    - Features for net-next:

        - [2a13cfdeed30] mptcp: sched: remove mptcp_sched_data (Matthieu
Baerts (NGI0)):
            - can be sent.

        - [89cc1710b569] mptcp: pm: init and release mptcp_pm_ops
(Geliang Tang)
        - [c6225faeac6c] mptcp: pm: add get_local_id() interface
(Geliang Tang)
        - [3548666bd480] mptcp: pm: add get_priority() interface
(Geliang Tang):
            - maybe best to send those with the rest of the PM ops

        - [22d9c75e5d9d] mptcp: sched: split validation part (Geliang Tang)
        - [28c713276584] mptcp: pm: Return local variable instead of
freed pointer (Thorsten Blum)
        - [5a18533532d2] mptcp: pass right struct to subflow_hmac_valid
(Matthieu Baerts (NGI0))
        - [1795b7066d60] mptcp: add MPJoinRejected MIB counter (Matthieu
Baerts (NGI0))
        - [36d6c66a6587] selftests: mptcp: validate MPJoinRejected
counter (Matthieu Baerts (NGI0)):
            - can be sent

    - Features for net-next (next): /

    - Features for other trees:

        - [9d8b94eb3bb2] bpf: Register mptcp common kfunc set (Geliang Tang)
        - [4c328b8b2369] bpf: Add mptcp_subflow bpf_iter (Geliang Tang)
        - [f4c28a1dfa96] selftests/bpf: More endpoints for endpoint_init
(Geliang Tang)
        - [b41675287824] selftests/bpf: Add mptcp_subflow bpf_iter
subtest (Geliang Tang)
        - [b71172be48ea] selftests/bpf: Drop cgroup_fd of run_mptcpify
(Geliang Tang)
        - [747fa5e7195a] bpf: Add mptcp packet scheduler struct_ops
(Geliang Tang)
        - [13d25b82f217] bpf: Export mptcp packet scheduler helpers
(Geliang Tang)
        - [d16ebfe7543c] selftests/bpf: Add bpf scheduler test (Geliang
Tang)
        - [5715ea4636a9] selftests/bpf: Add bpf_first scheduler & test
(Geliang Tang)
        - [ae2a1f33f832] selftests/bpf: Add bpf_bkup scheduler & test
(Geliang Tang)
        - [f09adae062dd] selftests/bpf: Add bpf_rr scheduler & test
(Geliang Tang)
        - [7ad2427fd1c7] selftests/bpf: Add bpf_red scheduler & test
(Geliang Tang)
        - [139c6f993f98] selftests/bpf: Add bpf_burst scheduler & test
(Geliang Tang)



Extra tests:
    - news about Syzkaller? (Matth):
        - Matth has setup a few machine, with syz-hub
        - currently running without kasan, etc.
        - TODO: add kasan, kmemleak, etc. → In progress

    - Packetdrill (Davide):
        - /

    - Patchew (Davide):
        - /

    - CI (Matth):
        - https://ci-results.mptcp.dev/flakes.html
        - https://netdev.bots.linux.dev/flakes.html?tn-needle=mptcp
        - enable PREEMPT + DEBUG in debug?

https://lore.kernel.org/netdev/20250402172305.1775226-1-sdf@fomichev.me/



Stable:
    - mptcp: move the whole rx path under msk socket lock:
        - auto selected: not sure why
        - sounds safer to drop it from the stable queues.
        - TODO: Matth: ask to drop it. → Done



Next meeting:
    - Next one on Wednesday, the 23rd 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_20250423



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.


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