From: Jakub Kicinski <kuba@kernel.org>
To: Eric Dumazet <edumazet@google.com>
Cc: "David S . Miller" <davem@davemloft.net>,
Paolo Abeni <pabeni@redhat.com>, Simon Horman <horms@kernel.org>,
Neal Cardwell <ncardwell@google.com>,
Kuniyuki Iwashima <kuniyu@google.com>,
netdev@vger.kernel.org, eric.dumazet@gmail.com
Subject: Re: [PATCH v3 net-next] tcp: add cwnd_event_tx_start to tcp_congestion_ops
Date: Sun, 15 Mar 2026 14:51:20 -0700 [thread overview]
Message-ID: <20260315145120.1a555d81@kernel.org> (raw)
In-Reply-To: <20260315154003.1851513-1-edumazet@google.com>
On Sun, 15 Mar 2026 15:40:03 +0000 Eric Dumazet wrote:
> v3: fix tools/testing/selftests/bpf/progs/tcp_ca_kfunc.c (Jakub)
> v2: fix tools/testing/selftests/bpf/progs/bpf_cc_cubic.c (Jakub)
> v1: https://lore.kernel.org/netdev/20260313202802.1201129-1-edumazet@google.com/
Builds but does not run:
https://github.com/kernel-patches/bpf/actions/runs/23116079851/job/67142296478
The BPF CI can be triggered by opening a pull request their
kernel-patches/bpf repo. We can also also Martin to help.
Error: #23 bpf_iter_setsockopt
Error: #23 bpf_iter_setsockopt
create_netns:PASS:create netns 0 nsec
create_netns:PASS:bring up lo 0 nsec
serial_test_bpf_iter_setsockopt:PASS:iter_skel 0 nsec
serial_test_bpf_iter_setsockopt:PASS:attach iter 0 nsec
libbpf: prog 'bpf_cubic_cwnd_event_tx_start': BPF program load failed: -ENOTSUPP
libbpf: prog 'bpf_cubic_cwnd_event_tx_start': -- BEGIN PROG LOAD LOG --
attach to unsupported member cwnd_event_tx_start of struct tcp_congestion_ops
processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0
-- END PROG LOAD LOG --
libbpf: prog 'bpf_cubic_cwnd_event_tx_start': failed to load: -ENOTSUPP
libbpf: failed to load object 'bpf_cubic'
libbpf: failed to load BPF skeleton 'bpf_cubic': -ENOTSUPP
serial_test_bpf_iter_setsockopt:FAIL:cubic_skel unexpected error: -524
Error: #34 bpf_tcp_ca
Error: #34/2 bpf_tcp_ca/cubic
Error: #34/2 bpf_tcp_ca/cubic
libbpf: prog 'bpf_cubic_cwnd_event_tx_start': BPF program load failed: -ENOTSUPP
libbpf: prog 'bpf_cubic_cwnd_event_tx_start': -- BEGIN PROG LOAD LOG --
attach to unsupported member cwnd_event_tx_start of struct tcp_congestion_ops
processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0
-- END PROG LOAD LOG --
libbpf: prog 'bpf_cubic_cwnd_event_tx_start': failed to load: -ENOTSUPP
libbpf: failed to load object 'bpf_cubic'
libbpf: failed to load BPF skeleton 'bpf_cubic': -ENOTSUPP
test_cubic:FAIL:bpf_cubic__open_and_load unexpected error: -524
Error: #34/14 bpf_tcp_ca/tcp_ca_kfunc
Error: #34/14 bpf_tcp_ca/tcp_ca_kfunc
libbpf: prog 'cwnd_event_tx_start': BPF program load failed: -ENOTSUPP
libbpf: prog 'cwnd_event_tx_start': -- BEGIN PROG LOAD LOG --
attach to unsupported member cwnd_event_tx_start of struct tcp_congestion_ops
processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0
-- END PROG LOAD LOG --
libbpf: prog 'cwnd_event_tx_start': failed to load: -ENOTSUPP
libbpf: failed to load object 'tcp_ca_kfunc'
libbpf: failed to load BPF skeleton 'tcp_ca_kfunc': -ENOTSUPP
test_tcp_ca_kfunc:FAIL:tcp_ca_kfunc__open_and_load unexpected error: -524
Error: #34/15 bpf_tcp_ca/cc_cubic
Error: #34/15 bpf_tcp_ca/cc_cubic
libbpf: prog 'bpf_cubic_cwnd_event_tx_start': BPF program load failed: -ENOTSUPP
libbpf: prog 'bpf_cubic_cwnd_event_tx_start': -- BEGIN PROG LOAD LOG --
attach to unsupported member cwnd_event_tx_start of struct tcp_congestion_ops
processed 0 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0
-- END PROG LOAD LOG --
libbpf: prog 'bpf_cubic_cwnd_event_tx_start': failed to load: -ENOTSUPP
libbpf: failed to load object 'bpf_cc_cubic'
libbpf: failed to load BPF skeleton 'bpf_cc_cubic': -ENOTSUPP
test_cc_cubic:FAIL:bpf_cc_cubic__open_and_load unexpected error: -524
next prev parent reply other threads:[~2026-03-15 21:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-15 15:40 [PATCH v3 net-next] tcp: add cwnd_event_tx_start to tcp_congestion_ops Eric Dumazet
2026-03-15 21:51 ` Jakub Kicinski [this message]
2026-03-16 2:22 ` Eric Dumazet
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