linux-kernel - Re: [PATCH bpf-next v5 3/3] selftests/bpf: Add stacktrace map lookup_and_delete

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Message-ID: <00b1a35f-f944-47a6-9195-52438753c051@iogearbox.net>
Date: Thu, 25 Sep 2025 14:09:28 +0200
From: Daniel Borkmann <daniel@...earbox.net>
To: Tao Chen <chen.dylane@...ux.dev>, ast@...nel.org,
 john.fastabend@...il.com, andrii@...nel.org, martin.lau@...ux.dev,
 eddyz87@...il.com, song@...nel.org, yonghong.song@...ux.dev,
 kpsingh@...nel.org, sdf@...ichev.me, haoluo@...gle.com, jolsa@...nel.org
Cc: bpf@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH bpf-next v5 3/3] selftests/bpf: Add stacktrace map
 lookup_and_delete_elem test case

On 9/23/25 6:58 PM, Tao Chen wrote:
> Add tests for stacktrace map lookup and delete:
> 1. use bpf_map_lookup_and_delete_elem to lookup and delete the target
>     stack_id,
> 2. lookup the deleted stack_id again to double check.
> 
> Signed-off-by: Tao Chen <chen.dylane@...ux.dev>
> ---
>   .../testing/selftests/bpf/prog_tests/stacktrace_map.c | 11 ++++++++++-
>   tools/testing/selftests/bpf/progs/stacktrace_map.c    |  2 ++
>   2 files changed, 12 insertions(+), 1 deletion(-)
BPF CI fails with:

Notice: Success: 644/5645, Skipped: 82, Failed: 1
Error: #402 stacktrace_map_raw_tp
   Error: #402 stacktrace_map_raw_tp
   libbpf: elf: failed to open ./test_stacktrace_map.bpf.o: -ENOENT
   test_stacktrace_map_raw_tp:FAIL:prog_load raw tp err -2 errno 2
Test Results:
              bpftool: PASS
           test_progs: FAIL (returned 1)
Error: Process completed with exit code 1.

https://github.com/kernel-patches/bpf/actions/runs/17993777572