2020-07-08 13:08 UTC+0200 ~ louis.peens@xxxxxxxxxxxxx
> From: Louis Peens <louis.peens@xxxxxxxxxxxxx>
>
> emit_obj_refs_json needs to added the same as with emit_obj_refs_plain
> to prevent segfaults, similar to Commit "8ae4121bd89e bpf: Fix bpftool
> without skeleton code enabled"). See the error below:
>
> # ./bpftool -p prog
> {
> "error": "bpftool built without PID iterator support"
> },[{
> "id": 2,
> "type": "cgroup_skb",
> "tag": "7be49e3934a125ba",
> "gpl_compatible": true,
> "loaded_at": 1594052789,
> "uid": 0,
> "bytes_xlated": 296,
> "jited": true,
> "bytes_jited": 203,
> "bytes_memlock": 4096,
> "map_ids": [2,3
> Segmentation fault (core dumped)
>
> The same happens for ./bpftool -p map, as well as ./bpftool -j prog/map.
>
> Fixes: d53dee3fe013 ("tools/bpftool: Show info for processes holding BPF map/prog/link/btf FDs")
> Signed-off-by: Louis Peens <louis.peens@xxxxxxxxxxxxx>
> Reviewed-by: Simon Horman <simon.horman@xxxxxxxxxxxxx>
Reviewed-by: Quentin Monnet <quentin@xxxxxxxxxxxxx>
Thanks Louis.
