Ideas? Will dig deeper later, the warning in the perf test output doesn't help.
Using perf as in acme/perf/core [root@jouet ~]# perf test bpf 38: BPF filter : 38.1: Basic BPF filtering : Skip 38.2: BPF pinning : Skip 38.3: BPF prologue generation : Skip 38.4: BPF relocation checker : Skip [root@jouet ~]# perf test -v bpf 38: BPF filter : 38.1: Basic BPF filtering : --- start --- test child forked, pid 26303 Missing basic BPF support, skip this test: Operation not permitted test child finished with -2 ---- end ---- BPF filter subtest 0: Skip 38.2: BPF pinning : --- force skipped --- BPF filter subtest 1: Skip 38.3: BPF prologue generation : --- force skipped --- BPF filter subtest 2: Skip 38.4: BPF relocation checker : --- force skipped --- BPF filter subtest 3: Skip [root@jouet ~]# [root@jouet ~]# uname -a Linux jouet 4.11.0-rc6+ #7 SMP Tue Apr 11 11:53:14 -03 2017 x86_64 x86_64 x86_64 GNU/Linux [root@jouet ~]# grep ' t bpf' /proc/kallsyms ffffffff9b09e338 t bpf_slow_path_word ffffffff9b09e36a t bpf_slow_path_half ffffffff9b09e3a2 t bpf_slow_path_byte ffffffff9b09e3d3 t bpf_slow_path_word_neg ffffffff9b09e403 t bpf_slow_path_half_neg ffffffff9b09e435 t bpf_slow_path_byte_neg ffffffff9b09e460 t bpf_error ffffffff9b1a5450 t bpf_get_prog_name ffffffff9b1a69c0 t bpf_prog_kallsyms_find ffffffff9b1a7e80 t bpf_prog_free_deferred ffffffff9b1a9b50 t bpf_map_free_deferred ffffffff9b1a9b80 t bpf_map_put_uref ffffffff9b1a9ba0 t bpf_map_show_fdinfo ffffffff9b1a9c40 t bpf_prog_show_fdinfo ffffffff9b1a9e40 t bpf_prog_release ffffffff9b1a9e90 t bpf_prog_uncharge_memlock.isra.17 ffffffff9b1aa130 t bpf_map_release ffffffff9b1aa640 t bpf_prog_load ffffffff9b1b0370 t bpf_get_inode ffffffff9b1b0410 t bpf_dentry_finalize ffffffff9b1b0460 t bpf_mkdir ffffffff9b1b04d0 t bpf_symlink ffffffff9b1b0560 t bpf_lookup ffffffff9b1b05c0 t bpf_mount ffffffff9b1b05e0 t bpf_fill_super ffffffff9b1b06f0 t bpf_any_put ffffffff9b1b0740 t bpf_evict_inode ffffffff9b1b07b0 t bpf_mkobj ffffffff9b1b7eb0 t bpf_overflow_handler ffffffff9b751dd0 t bpf_convert_ctx_access ffffffff9b7525b0 t bpf_xdp_copy ffffffff9b7525d0 t bpf_convert_filter ffffffff9b753450 t bpf_get_skb_set_tunnel_proto ffffffff9b753af0 t bpf_prog_store_orig_filter.isra.37 ffffffff9b753e80 t bpf_base_func_proto ffffffff9b7541f0 t bpf_skb_copy ffffffff9b755630 t bpf_prepare_filter ffffffff9b762ee0 t bpf_encap_nlsize ffffffff9b762ef0 t bpf_lwt_prog_destroy ffffffff9b762f20 t bpf_destroy_state ffffffff9b762f50 t bpf_parse_prog ffffffff9b763010 t bpf_build_state ffffffff9b763190 t bpf_lwt_prog_cmp.isra.6 ffffffff9b7631c0 t bpf_encap_cmp ffffffff9b763490 t bpf_xmit ffffffff9b763530 t bpf_output ffffffff9b7635d0 t bpf_input ffffffff9b763660 t bpf_fill_lwt_prog ffffffff9b763700 t bpf_fill_encap_info ffffffff9bfb4046 t bpf_init ffffffff9bfefcd2 t bpf_lwt_init [root@jouet ~]# [root@jouet ~]# grep BPF ~acme/git/build/v4.11.0-rc6+/.config CONFIG_CGROUP_BPF=y CONFIG_BPF=y CONFIG_BPF_SYSCALL=y CONFIG_NETFILTER_XT_MATCH_BPF=m CONFIG_NET_CLS_BPF=m CONFIG_NET_ACT_BPF=m CONFIG_BPF_JIT=y CONFIG_LWTUNNEL_BPF=y CONFIG_HAVE_EBPF_JIT=y CONFIG_BPF_EVENTS=y # CONFIG_TEST_BPF is not set [root@jouet ~]# [root@jouet ~]# perf test LLVM 36: LLVM search and compile : 36.1: Basic BPF llvm compile : Ok 36.2: kbuild searching : Ok 36.3: Compile source for BPF prologue generation: Ok 36.4: Compile source for BPF relocation : Ok [root@jouet ~]#
