如何解决仅检测到我CPU的四个内核中的一个？

9

我有一台Acer Aspire M5640 / M3640 PC，具有运行Ubuntu 12.04的Intel Core 2 Q8200（四核）处理器。

现在看来只能识别一个CPU内核。lscpu输出：

Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                1
On-line CPU(s) list:   0
Thread(s) per core:    1
Core(s) per socket:    1
Socket(s):             1
NUMA node(s):          1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 23
Stepping:              10
CPU MHz:               2333.403
BogoMIPS:              4666.80
L1d cache:             32K
L1i cache:             32K
L2 cache:              2048K
NUMA node0 CPU(s):     0

我本来希望在这里Core(s) per socket并将CPU(s)其4列为价值。

一个重要的注意事项是我不能定期引导它，但是我需要nolapic内核引导参数来避免引导过程中的硬冻结。

说到启动，固件版本是 Version: R01-C2

对于使用所有四个内核的能力的任何想法将受到高度赞赏。

更多信息

dmesg 给出：

[    0.000000] Nvidia board detected. Ignoring ACPI timer override.
[    0.000000] If you got timer trouble try acpi_use_timer_override
[    0.000000] SFI: Simple Firmware Interface v0.81 http://simplefirmware.org
[    0.000000] Intel MultiProcessor Specification v1.4
[    0.000000] MPTABLE: OEM ID: nVidia  
[    0.000000] MPTABLE: Product ID: MCP73       
[    0.000000] MPTABLE: APIC at: 0xFEE00000
[    0.000000] Processor #0 (Bootup-CPU)
[    0.000000] Processor #1
[    0.000000] Processor #2
[    0.000000] Processor #3
[    0.000000] IOAPIC[0]: apic_id 4, version 17, address 0xfec00000, GSI 0-23
[    0.000000] Processors: 4
[    0.000000] SMP: Allowing 4 CPUs, 0 hotplug CPUs

和 lshw -class cpu

  *-cpu                   
       description: CPU
       product: Intel(R) Core(TM)2 Quad CPU    Q8200  @ 2.33GHz
       vendor: Intel Corp.
       physical id: 4
       bus info: cpu@0
       version: Intel(R) Core(TM)2 Quad CPU    Q8200  @ 2.33GHz
       serial: To Be Filled By O.E.M.
       slot: SOCKET775 M/B
       size: 2333MHz
       capacity: 2333MHz
       width: 64 bits
       clock: 333MHz
       capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm dtherm
       configuration: cores=4 enabledcores=4 threads=4
  *-processor UNCLAIMED
       description: Co-processor
       product: MCP73 Co-processor
       vendor: NVIDIA Corporation
       physical id: 3.3
       bus info: pci@0000:00:03.3
       version: a2
       width: 32 bits
       clock: 66MHz
       capabilities: bus_master
       configuration: latency=0 maxlatency=1 mingnt=3
       resources: memory:fce80000-fcefffff

和dmidecode：

BIOS Information
    Vendor: American Megatrends Inc.
    Version: R01-C2
    Release Date: 02/26/2009
    Address: 0xF0000
    Runtime Size: 64 kB
    ROM Size: 1024 kB
    Characteristics:
            ISA is supported
            PCI is supported
            PNP is supported
            APM is supported
            BIOS is upgradeable
            BIOS shadowing is allowed
            ESCD support is available
            Boot from CD is supported
            Selectable boot is supported
            BIOS ROM is socketed
            EDD is supported
            5.25"/1.2 MB floppy services are supported (int 13h)
            3.5"/720 kB floppy services are supported (int 13h)
            3.5"/2.88 MB floppy services are supported (int 13h)
            8042 keyboard services are supported (int 9h)
            Serial services are supported (int 14h)
            Printer services are supported (int 17h)
            CGA/mono video services are supported (int 10h)
            ACPI is supported
            USB legacy is supported
            LS-120 boot is supported
            ATAPI Zip drive boot is supported
            BIOS boot specification is supported
            Targeted content distribution is supported
    BIOS Revision: 8.15

System Information
    Manufacturer: ACER
    Product Name: Aspire M5640/M3640
    Version: R01-C2
    Serial Number: 91EER71ZCP93401DDA1800
    UUID: Not Present
    Wake-up Type: Power Switch
    SKU Number: To Be Filled By O.E.M.
    Family: To Be Filled By O.E.M.

Base Board Information
    Manufacturer: ACER
    Product Name: MCP73PV
    Version: NVIDIA MCP73
    Serial Number: 000000000
    Asset Tag: To Be Filled By O.E.M.
    Features:
            Board is a hosting board
            Board is replaceable
    Location In Chassis: To Be Filled By O.E.M.
    Chassis Handle: 0x0003
    Type: Motherboard
    Contained Object Handles: 0
12.04  hardware  cpu  multi-core 
— 邱Bi
source
感谢您的宝贵意见。我添加了lshw -class cpu命令输出，看来CPU是“ Intel（R）Core（TM）2 Quad CPU Q8200 @ 2.33GHz”。我不知道这是否有帮助。我将尝试12.10实时CD并保持发布状态。
— Qiou Bi 2013年
确实，它不是那么新。它最近从10.04“升级”（仍然带 nolapic）。我正在挖掘信息（主板和BIOS版本）。您可能知道输出它的魔术命令；）
— Qiou Bi
您去了，dmidecode似乎可以正常工作（我编辑了原始帖子）。
— Qiou Bi
— 邱壁

Answers:

9

通心粉。我显然解决了这个问题。简而言之：

  1. 我将BIOS值更改Installer OS select为Other（替代为Windows）
  2. 我祈祷并尝试在没有nolapic内核启动参数的情况下启动。
  3. 它像一种魅力一样启动了Ubuntu（尽管不确定祈祷的影响）

  4. 在lscpu现在给

    Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                4
On-line CPU(s) list:   0-3
Thread(s) per core:    1
Core(s) per socket:    4
Socket(s):             1
NUMA node(s):          1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 23
Stepping:              10
CPU MHz:               2336.000
BogoMIPS:              4666.66
L1d cache:             32K
L1i cache:             32K
L2 cache:              2048K
NUMA node0 CPU(s):     0-3

  5. 我top在运行几个计算密集型流程的同时交叉验证

    3504 username   20   0  139m  47m 4308 R  100  1.2   4:57.11 R                  
3444 username   20   0  140m  47m 4316 R   99  1.2   5:24.08 R

  6. 我终于可以加热我的公寓了

非常感谢您的帮助和线索。我不确定我实际上做了什么，但是可以。特别感谢BIOS主管。我从没想过要弄乱这些选项...

— 邱Bi
source
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