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| author |   Song Liu <song@kernel.org> | 2024-06-04 00:07:00 -0700 |
|---|---|---|
| committer |   Andrii Nakryiko <andrii@kernel.org> | 2024-06-04 11:17:54 -0700 |
| commit | 61ce0ea7591fef2eb6e89ce40ffcc24fda4dbbc5 (patch) | |
| tree | 09649074f6ebde1305acef37c57614fa3b0e9d0d /tools/lib/bpf/libbpf.c | |
| parent | Merge branch 'enable-bpf-programs-to-declare-arrays-of-kptr-bpf_rb_root-and-bpf_list_head' (diff) | |
| download | linux-rng-61ce0ea7591fef2eb6e89ce40ffcc24fda4dbbc5.tar.xz linux-rng-61ce0ea7591fef2eb6e89ce40ffcc24fda4dbbc5.zip | |
selftests/bpf: Fix bpf_cookie and find_vma in nested VM
bpf_cookie and find_vma are flaky in nested VMs, which is used by some CI
systems. It turns out these failures are caused by unreliable perf event
in nested VM. Fix these by:
1. Use PERF_COUNT_SW_CPU_CLOCK in find_vma;
2. Increase sample_freq in bpf_cookie.
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240604070700.3032142-1-song@kernel.org
Diffstat (limited to 'tools/lib/bpf/libbpf.c')
0 files changed, 0 insertions, 0 deletions