netdev - Re: [PATCH bpf-next 2/2] selftests/bpf: Add testcase where 7th argment is struct

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Date: Tue, 2 Apr 2024 16:02:03 +0200
From: Daniel Borkmann <daniel@...earbox.net>
To: Pu Lehui <pulehui@...weicloud.com>, bpf@...r.kernel.org,
 linux-riscv@...ts.infradead.org, netdev@...r.kernel.org
Cc: Björn Töpel <bjorn@...nel.org>,
 Alexei Starovoitov <ast@...nel.org>, Andrii Nakryiko <andrii@...nel.org>,
 Martin KaFai Lau <martin.lau@...ux.dev>, Eduard Zingerman
 <eddyz87@...il.com>, Song Liu <song@...nel.org>, Yonghong Song <yhs@...com>,
 John Fastabend <john.fastabend@...il.com>, KP Singh <kpsingh@...nel.org>,
 Stanislav Fomichev <sdf@...gle.com>, Hao Luo <haoluo@...gle.com>,
 Jiri Olsa <jolsa@...nel.org>, Palmer Dabbelt <palmer@...belt.com>,
 Pu Lehui <pulehui@...wei.com>
Subject: Re: [PATCH bpf-next 2/2] selftests/bpf: Add testcase where 7th
 argment is struct

On 3/31/24 11:24 AM, Pu Lehui wrote:
> From: Pu Lehui <pulehui@...wei.com>
> 
> Add testcase where 7th argument is struct for architectures with 8
> argument registers, and increase the complexity of the struct.
> 
> Signed-off-by: Pu Lehui <pulehui@...wei.com>
> ---
>   .../selftests/bpf/bpf_testmod/bpf_testmod.c   | 19 ++++++++++
>   .../selftests/bpf/prog_tests/tracing_struct.c | 13 +++++++
>   .../selftests/bpf/progs/tracing_struct.c      | 35 +++++++++++++++++++
>   3 files changed, 67 insertions(+)

The last test from this patch fails BPF CI, ptal :

https://github.com/kernel-patches/bpf/actions/runs/8497262674/job/23275690303
https://github.com/kernel-patches/bpf/actions/runs/8497262674/job/23275690364

Notice: Success: 519/3592, Skipped: 53, Failed: 1
Error: #391 tracing_struct
   Error: #391 tracing_struct
   test_fentry:PASS:tracing_struct__open_and_load 0 nsec
   libbpf: prog 'test_struct_arg_16': failed to attach: ERROR: strerror_r(-524)=22
   libbpf: prog 'test_struct_arg_16': failed to auto-attach: -524
   test_fentry:FAIL:tracing_struct__attach unexpected error: -524 (errno 524)
Test Results:
              bpftool: PASS
           test_progs: FAIL (returned 1)
Error: Process completed with exit code 1.