LSCPU Syntax invalid option message seen

[jharriga]

I recently saw this message when running with DUT=RHEL 9.8 x86 Server

TASK [common : Get lscpu output] *********************************************** ok: [vllm-server] => {"changed": false, "cmd": ["lscpu", "-e=CPU,NODE,CORE", "-n"], "delta": "0:00:00.002071", "end": "2026-04-01 13:07:46.953105", "failed_when_result": false, "msg": "non-zero return code", "rc": 1, "start": "2026-04-01 13:07:46.951034", "stderr": "lscpu: invalid option -- 'n'\nTry 'lscpu --help' for more information.", "stderr_lines": ["lscpu: invalid option -- 'n'", "Try 'lscpu --help' for more information."], "stdout": "", "stdout_lines": []}

The following TASK (fallback for older lscpu) did succeed