[Powerpc] Incorrect Socket(s) & "Core(s) per socket" of CPU topology reported by lscpu command.

Solution In Progress - Updated -

Issue

  • Incorrect Socket(s) & "Core(s) per socket" of CPU topology reported by lscpu command.
    • Actually the system has 1 socket, here is the output based on RHEL 8.4 kernel.
$ lscpu 
Architecture:        ppc64le
Byte Order:          Little Endian
CPU(s):              8
On-line CPU(s) list: 0-7
Thread(s) per core:  8
Core(s) per socket:  1          <<<----
Socket(s):           1          <<<----
NUMA node(s):        1
  • However, it is showing incorrect number in RHEL 8.5 kernel.
$ lscpu
Architecture:        ppc64le
Byte Order:          Little Endian
CPU(s):              8
On-line CPU(s) list: 0-7
Thread(s) per core:  8
Core(s) per socket:  0          <<<---- 
Socket(s):           2          <<<----
NUMA node(s):        1

Environment

  • Red Hat Enterprise Linux 8.5 and later
  • Red Hat Enterprise Linux 9 (Beta)
  • ppc64le

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