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Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2020:1785
Description of problem: A number of void JSON object are printed when trying to use ip -j -{0,4,6} addr show <iface> How reproducible: Always, using ip -j -4 addr show <iface> Actual results: $ ip -j -4 addr show ens1u1 | jq [ {}, {}, { "ifindex": 20, "ifname": "ens1u1", "flags": [ "BROADCAST", "MULTICAST", "UP", "LOWER_UP" ], "mtu": 1500, "qdisc": "fq_codel", "operstate": "UP", "group": "default", "txqlen": 1000, "addr_info": [ { "family": "inet", "local": "10.32.181.34", "prefixlen": 24, "broadcast": "10.32.181.255", "scope": "global", "dynamic": true, "noprefixroute": true, "label": "ens1u1", "valid_life_time": 37837, "preferred_life_time": 37837 } ] } ] Expected results: $ ./ip/ip -j -4 addr show ens1u1 | jq [ { "ifindex": 20, "ifname": "ens1u1", "flags": [ "BROADCAST", "MULTICAST", "UP", "LOWER_UP" ], "mtu": 1500, "qdisc": "fq_codel", "operstate": "UP", "group": "default", "txqlen": 1000, "addr_info": [ { "family": "inet", "local": "10.32.181.34", "prefixlen": 24, "broadcast": "10.32.181.255", "scope": "global", "dynamic": true, "noprefixroute": true, "label": "ens1u1", "valid_life_time": 37837, "preferred_life_time": 37837 } ] } ] Additional info: Issue is fixed upstream with commit 8847097850571 ("ip address: Set device index in dump request")