Messages in this thread Patch in this message | | | From | Alexei Starovoitov <> | Subject | [PATCH net-next 4/9] samples/bpf: make map creation more verbose | Date | Sun, 6 Mar 2016 17:58:32 -0800 |
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map creation is typically the first one to fail when rlimits are too low, not enough memory, etc Make this failure scenario more verbose
Signed-off-by: Alexei Starovoitov <ast@kernel.org> --- samples/bpf/bpf_load.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/samples/bpf/bpf_load.c b/samples/bpf/bpf_load.c index da86a8e0a95a..816bca5760a0 100644 --- a/samples/bpf/bpf_load.c +++ b/samples/bpf/bpf_load.c @@ -158,8 +158,11 @@ static int load_maps(struct bpf_map_def *maps, int len) maps[i].key_size, maps[i].value_size, maps[i].max_entries); - if (map_fd[i] < 0) + if (map_fd[i] < 0) { + printf("failed to create a map: %d %s\n", + errno, strerror(errno)); return 1; + } if (maps[i].type == BPF_MAP_TYPE_PROG_ARRAY) prog_array_fd = map_fd[i]; -- 2.6.5
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