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Arnaldo Carvalho de Melo
d3280ce01e
I noticed that the 'perf test bpf' was failing: # perf test bpf 41: BPF filter : 41.1: Basic BPF filtering : Skip 41.2: BPF pinning : Skip 41.3: BPF prologue generation : Skip 41.4: BPF relocation checker : Skip # ulimit -l 64 # Using verbose mode we get just a line bout -EPERF being returned from libbpf's bpf_load_program_xattr(), that ends up being used in 'perf test bpf' initial program loading capability query: Missing basic BPF support, skip this test: Operation not permitted Not that informative, but on a separate problem when creating BPF maps bumping rlimit(MEMLOCK) helped, so I tried it here as well, works: # ulimit -l 128 # perf test bpf 41: BPF filter : 41.1: Basic BPF filtering : Ok 41.2: BPF pinning : Ok 41.3: BPF prologue generation : Ok 41.4: BPF relocation checker : Ok # So use the recently added rlimit__bump_memlock() helper: # ulimit -l 64 # perf test bpf 41: BPF filter : 41.1: Basic BPF filtering : Ok 41.2: BPF pinning : Ok 41.3: BPF prologue generation : Ok 41.4: BPF relocation checker : Ok # ulimit -l 64 # I.e. the bumping of memlock is restricted to the 'perf test' instance, not changing the global value. Cc: Adrian Hunter <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Link: https://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>