Have a old quad core system that I've had since Fedora 10 I believe. Recently, upgraded to Fedora 31, and it was still seeing all 4 cores. Run BOINC, and recently notice that it was only showing 3 cpus running? Machine is one of the 5 computers I have at house, but is headless and access remotely via VNC. Other systems all show the right number of cpus after updates, so not sure what might cause the issue. The results of lshw-gui shows the 4 cores, but the dmesg shows only CPU 0 - 2. Didn't notice this until the 5.7 kernel change, but not sure exactly which update caused the change. Any ideals what could fix this, or how to get specific reasons it might have happened. Other machines are newer, some dual and one other quad core. So, just this one?? Info from lshw-gui and dmesg product: AMD Phenom(tm) II X4 955 Processor vendor: Advanced Micro Devices [AMD] bus info: cpu@0 version: AMD Phenom(tm) II X4 955 Processor serial: To Be Filled By O.E.M. slot: AM2 size: 3200MHz capacity: 3200MHz width: 64 bits clock: 200MHz capabilities: 64bits extensions (x86-64), mathematical co-processor, FPU exceptions reporting, wp, virtual mode extensions, debugging extensions, page size extensions, time stamp counter, model-specific registers, 4GB+ memory addressing (Physical Address Extension), machine check exceptions, compare and exchange 8-byte, on-chip advanced programmable interrupt controller (APIC), fast system calls, memory type range registers, page global enable, machine check architecture, conditional move instruction, page attribute table, 36-bit page size extensions, clflush, multimedia extensions (MMX), fast floating point save/restore, streaming SIMD extensions (SSE), streaming SIMD extensions (SSE2), HyperThreading, fast system calls, no-execute bit (NX), multimedia extensions (MMXExt), fxsr_opt, pdpe1gb, rdtscp, 64bits extensions (x86-64), multimedia extensions (3DNow!Ext), multimedia extensions (3DNow!), constant_tsc, rep_good, nopl, nonstop_tsc, cpuid, extd_apicid, pni, monitor, cx16, popcnt, lahf_lm, cmp_legacy, svm, extapic, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, osvw, ibs, skinit, wdt, hw_pstate, vmmcall, npt, lbrv, svm_lock, nrip_save, CPU Frequency scaling configuration: cores: 4 enabledcores: 4 dmesg | grep -i CPU [ 0.092368] smpboot: Allowing 6 CPUs, 3 hotplug CPUs [ 0.097494] setup_percpu: NR_CPUS:8192 nr_cpumask_bits:6 nr_cpu_ids:6 nr_node_ids:1 [ 0.098234] percpu: Embedded 55 pages/cpu s188416 r8192 d28672 u262144 [ 0.098239] pcpu-alloc: s188416 r8192 d28672 u262144 alloc=1*2097152 [ 0.098240] pcpu-alloc: [0] 0 1 2 3 4 5 - - [ 0.155390] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=6, Nodes=1 [ 0.166771] rcu: RCU restricting CPUs from NR_CPUS=8192 to nr_cpu_ids=6. [ 0.166773] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=6 [ 0.281801] smpboot: CPU0: AMD Phenom(tm) II X4 955 Processor (family: 0x10, model: 0x4, stepping: 0x2) [ 0.282522] smp: Bringing up secondary CPUs ... [ 0.282522] .... node #0, CPUs: #1 #2 [ 0.285583] smp: Brought up 1 node, 3 CPUs [ 0.288816] cpuidle: using governor menu [ 0.289646] mtrr: your CPUs had inconsistent fixed MTRR settings [ 0.289646] mtrr: probably your BIOS does not setup all CPUs. [ 0.487753] cryptd: max_cpu_qlen set to 1000 [ 1.487099] microcode: CPU0: patch_level=0x010000db [ 1.487103] microcode: CPU1: patch_level=0x010000db [ 1.487108] microcode: CPU2: patch_level=0x010000db [ 2.775723] [drm] GART: num cpu pages 131072, num gpu pages 131072 [ 2.792713] radeon 0000:01:05.0: fence driver on ring 0 use gpu addr 0x00000000a0000c00 and cpu addr 0x(____ptrval____) [ 2.794881] radeon 0000:01:05.0: fence driver on ring 5 use gpu addr 0x00000000c0056038 and cpu addr 0x(____ptrval____) [ 9.987542] acpi_cpufreq: overriding BIOS provided _PSD data [ 10.196935] k10temp 0000:00:18.3: unreliable CPU thermal sensor; monitoring disabled Thanks. +------------------------------------------------------------+ Michael D. Setzer II - Computer Science Instructor (Retired) mailto:mikes@xxxxxxxx mailto:msetzerii@xxxxxxxxx Guam - Where America's Day Begins G4L Disk Imaging Project maintainer http://sourceforge.net/projects/g4l/ +------------------------------------------------------------+ _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
