Linux
Xcp-Ng 中 Xeon X5650 的 CPU 核心數錯誤
— 更新 2 — 從未解決 Xcp-Ng 7.6。xcp-ng 8.0 不存在問題。
我有一個 Intel Xeon X5650 處理器（來自 eBay），但 linux（Xcp-ng 7.6）只列出了 8 個使用
lscpu. 但是dmidecode -t processor正確地說明了 6 個核心和 12 個執行緒。我嘗試更新 BIOS 和 Xcp-Ng 並添加
maxcpus=12 nr_cpus=12到核心行。不幸的是，我不知道是什麼原因造成的，也不知道如何繼續尋找解決方案。— 更新 —- 禁用超執行緒給了我 6 個核心，但每個核心只有 1 個執行緒 – /UPDATE —
機器 (
HP ProLiant DL320 G6) 資訊（BIOS 引導消息）：32 GB 安裝
的 ProLiant 系統 BIOS - W07 (05/21/2018)
檢測到 1 個處理器，共啟用 6 個核心，啟用超執行緒處理 1：Intel(R) Xeon(R) CPU X5650 @ 2.67GHz QPI 速度：6.4 GT/s
來自 lscpu、dmesg、/proc/cpuinfo、uname、dmidecode 的輸出（部分）
[root@xcp-ng ~]# lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 8 On-line CPU(s) list: 0-7 Thread(s) per core: 2 Core(s) per socket: 4 Socket(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 44 Model name: Intel(R) Xeon(R) CPU X5650 @ 2.67GHz Stepping: 2 CPU MHz: 2666.766 BogoMIPS: 5333.53 Hypervisor vendor: Xen Virtualization type: none L1d cache: 32K L1i cache: 32K L2 cache: 256K L3 cache: 12288K [root@xcp-ng ~]# uname -a Linux xcp-ng 4.4.0+10 #1 SMP Thu Sep 13 08:55:11 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux [root@xcp-ng ~]# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 44 model name : Intel(R) Xeon(R) CPU X5650 @ 2.67GHz stepping : 2 microcode : 0x1f cpu MHz : 2666.766 cache size : 12288 KB physical id : 1 siblings : 8 core id : 0 cpu cores : 4 apicid : 32 initial apicid : 32 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu de tsc msr pae mce cx8 apic sep mca cmov pat clflush acpi mmx fxsr sse sse2 ht syscall nx lm constant_tsc arch_perfmon rep_good nopl nonstop_tsc pni pclmulqdq monitor est ssse3 cx16 sse4_1 sse4_2 popcnt aes hypervisor lahf_lm ida arat epb dtherm bugs : l1tf bogomips : 5333.53 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ... [root@xcp-ng ~]# dmesg | grep -i cpu [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Command line: root=LABEL=root-aflmjv ro nolvm hpet=disable xencons=hvc console=hvc0 console=tty0 quiet vga=785 splash pti=off spectre_v2=off l1tf=off nospec_store_bypass_disable no_stf_barrier noibrs noibpb nospectre_v1 nospectre_v2 mds=off slub_debug maxcpus=12 nr_cpus=12 [ 0.000000] KERNEL supported cpus: [ 0.000000] smpboot: Allowing 12 CPUs, 0 hotplug CPUs [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:12 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 32 pages/cpu @ffff88007ce00000 s92120 r8192 d30760 u131072 [ 0.000000] pcpu-alloc: s92120 r8192 d30760 u131072 alloc=1*2097152 [ 0.000000] pcpu-alloc: [0] 00 01 02 03 04 05 06 07 08 09 10 11 -- -- -- -- [ 0.000000] Kernel command line: root=LABEL=root-aflmjv ro nolvm hpet=disable xencons=hvc console=hvc0 console=tty0 quiet vga=785 splash pti=off spectre_v2=off l1tf=off nospec_store_bypass_disable no_stf_barrier noibrs noibpb nospectre_v1 nospectre_v2 mds=off slub_debug maxcpus=12 nr_cpus=12 [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1 [ 0.000000] RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=8 [ 0.000000] Xen: using vcpuop timer interface [ 0.000000] installing Xen timer for CPU 0 [ 27.992808] CPU: Physical Processor ID: 1 [ 27.992809] CPU: Processor Core ID: 0 [ 27.992812] mce: CPU supports 2 MCE banks [ 28.003577] cpu 0 spinlock event irq 49 [ 28.003582] Could not initialize VPMU for cpu 0, error -95 [ 28.005495] NMI watchdog: disabled (cpu0): hardware events not enabled [ 28.005496] NMI watchdog: Shutting down hard lockup detector on all cpus [ 28.005838] installing Xen timer for CPU 1 [ 28.005877] cpu 1 spinlock event irq 56 [ 28.006600] installing Xen timer for CPU 2 [ 28.006641] cpu 2 spinlock event irq 63 [ 28.007293] installing Xen timer for CPU 3 [ 28.007329] cpu 3 spinlock event irq 70 [ 28.007994] installing Xen timer for CPU 4 [ 28.008032] cpu 4 spinlock event irq 77 [ 28.008682] installing Xen timer for CPU 5 [ 28.008721] cpu 5 spinlock event irq 84 [ 28.009375] installing Xen timer for CPU 6 [ 28.009412] cpu 6 spinlock event irq 91 [ 28.010057] installing Xen timer for CPU 7 [ 28.010096] cpu 7 spinlock event irq 98 [ 28.010368] x86: Booted up 1 node, 8 CPUs [ 40.874621] pcc-cpufreq: (v1.10.00) driver loaded with frequency limits: 1600 MHz, 2666 MHz [ 40.924382] pcc-cpufreq: (v1.10.00) driver loaded with frequency limits: 1600 MHz, 2666 MHz [ 40.955884] pcc-cpufreq: (v1.10.00) driver loaded with frequency limits: 1600 MHz, 2666 MHz [ 40.988112] pcc-cpufreq: (v1.10.00) driver loaded with frequency limits: 1600 MHz, 2666 MHz [ 41.029176] pcc-cpufreq: (v1.10.00) driver loaded with frequency limits: 1600 MHz, 2666 MHz [ 41.069384] pcc-cpufreq: (v1.10.00) driver loaded with frequency limits: 1600 MHz, 2666 MHz [ 41.118143] pcc-cpufreq: (v1.10.00) driver loaded with frequency limits: 1600 MHz, 2666 MHz [ 50.796328] pcc-cpufreq: (v1.10.00) driver loaded with frequency limits: 1600 MHz, 2666 MHz [ 50.886595] pcc-cpufreq: (v1.10.00) driver loaded with frequency limits: 1600 MHz, 2666 MHz [ 50.971893] pcc-cpufreq: (v1.10.00) driver loaded with frequency limits: 1600 MHz, 2666 MHz [ 51.036407] pcc-cpufreq: (v1.10.00) driver loaded with frequency limits: 1600 MHz, 2666 MHz [root@xcp-ng ~]# dmidecode -t processor # dmidecode 2.12-dmifs SMBIOS 2.7 present. Handle 0x0400, DMI type 4, 42 bytes Processor Information Socket Designation: Proc 1 Type: Central Processor Family: Xeon Manufacturer: Intel ID: C2 06 02 00 FF FB EB BF Signature: Type 0, Family 6, Model 44, Stepping 2 Flags: FPU (Floating-point unit on-chip) VME (Virtual mode extension) DE (Debugging extension) PSE (Page size extension) TSC (Time stamp counter) MSR (Model specific registers) PAE (Physical address extension) MCE (Machine check exception) CX8 (CMPXCHG8 instruction supported) APIC (On-chip APIC hardware supported) SEP (Fast system call) MTRR (Memory type range registers) PGE (Page global enable) MCA (Machine check architecture) CMOV (Conditional move instruction supported) PAT (Page attribute table) PSE-36 (36-bit page size extension) CLFSH (CLFLUSH instruction supported) DS (Debug store) ACPI (ACPI supported) MMX (MMX technology supported) FXSR (FXSAVE and FXSTOR instructions supported) SSE (Streaming SIMD extensions) SSE2 (Streaming SIMD extensions 2) SS (Self-snoop) HTT (Multi-threading) TM (Thermal monitor supported) PBE (Pending break enabled) Version: Intel(R) Xeon(R) CPU X5650 @ 2.67GHz Voltage: 1.4 V External Clock: 133 MHz Max Speed: 4800 MHz Current Speed: 2667 MHz Status: Populated, Enabled Upgrade: Socket LGA1366 L1 Cache Handle: 0x0710 L2 Cache Handle: 0x0720 L3 Cache Handle: 0x0730 Serial Number: Not Specified Asset Tag: Not Specified Part Number: Not Specified Core Count: 6 Core Enabled: 6 Thread Count: 12 Characteristics: 64-bit capable
有沒有
yum update修復什麼？全新安裝 xcp-ng 還是使用舊 CPU 然後用新 CPU 升級？