> > Hello, folk. > > > > I have a system based on AMD 3970x CPUs. It has 32 physical cores > > and 64 threads. It seems that "nr_cpu_ids" variable is not correctly > > set on latest 5.8-rc3 kernel. Please have a look below on dmesg output: > > > > <snip> > > urezki@pc638:~$ sudo dmesg | grep 128 > > [ 0.000000] IOAPIC[0]: apic_id 128, version 33, address 0xfec00000, GSI 0-23 > > [ 0.000000] smpboot: Allowing 128 CPUs, 64 hotplug CPUs > > [ 0.000000] setup_percpu: NR_CPUS:512 nr_cpumask_bits:512 nr_cpu_ids:128 nr_node_ids:1 > > My 3950 do > > > [ 0.005271] ACPI: SSDT 0x00000000CA1F5000 0003F1 (v02 ALASKA CPUSSDT 01072009 AMI 01072009) > [ 0.108266] smpboot: Allowing 32 CPUs, 0 hotplug CPUs > [ 0.111384] setup_percpu: NR_CPUS:8192 nr_cpumask_bits:32 nr_cpu_ids:32 nr_node_ids:1 > > (Fedora F32 5.6.18-300) What motherboard and BIOs do you use? > I have MSI TRX40 with latest BIOS. -- Vlad Rezki
