== From the BMC web UI == Sensor Readings => Select a sensor type category: All Sensors: CPU Core Func 48 Processor disabled
== In dmesg == [ 0.000000] CPU maps initialized for 4 threads per core [ 0.021044] smp: Bringing up secondary CPUs ... [ 0.704642] smp: Brought up 2 nodes, 156 CPUs [ 0.704709] numa: Node 0 CPUs: 0-79 [ 0.704773] numa: Node 8 CPUs: 80-155 == Result == Looks like exactly 4 threads are missing between 155 and 159 which corresponds to the disabled Core as reported by firmware. BMC logs does not give me any reason for why a core was disabled (may be a bad core?)... May be someone @IBM could tell me if there was a firmware command to get that information? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1827335 Title: Unable to put offline CPU back online on Bionic/B-hwe-edge P9 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1827335/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
