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author | Namhyung Kim <[email protected]> | 2023-08-25 09:41:50 -0700 |
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committer | Arnaldo Carvalho de Melo <[email protected]> | 2023-08-29 14:16:14 -0300 |
commit | 11f5710d96afcd569a7c8e00395b714bbea3ce5d (patch) | |
tree | 72d92644afffaaea0d727585e23b1c3c033c41df /scripts/gdb/linux/utils.py | |
parent | c091c78b73c82f1e2811ab19b8e287ddc7807651 (diff) |
perf test shell record_bpf_filter: Skip 6.2 kernel
The BPF sample filtering requires two kernel changes below:
* bpf_cast_to_kernel_ctx() kfunc (added in v6.2)
* setting perf_sample_data->sample_flags (finished in v6.3)
The perf tools can check bpf_cast_to_kernel_ctx() easily so it can
refuse BPF filters on those old kernels (v6.1 and earlier).
But checking sample_flags appears to be difficult so current code won't
work on v6.2 kernel. That's unfortunate but I don't know what's the
correct way to handle it.
For now, let's skip v6.2 kernels explicitly (if failed) in the test.
Fixes: 9575ecdd198a50e9 ("perf test: Add perf record sample filtering test")
Reported-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'scripts/gdb/linux/utils.py')
0 files changed, 0 insertions, 0 deletions