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    SubjectRe: cpuinfo shows wrong MHz value
    Date
    Am Mittwoch, 18. Februar 2009 schrieb Frans Pop:

    > commit ed9cbcd40004904dbe61ccc16d6106a7de38c998
    > Author: Zhao Yakui <yakui.zhao@intel.com>
    > Date: Tue Nov 20 14:20:21 2007 -0500
    > Revert "speedstep-lib.c: fix frequency multiplier for Pentium4 models
    > 0&1"
    >
    > That would exactly explain the factor 8 of the error.

    Yes, looks like thats the reason.

    > Do you have a line like the following in your debug output?
    > P4 - FSB %u kHz; Multiplier %u; Speed %u kHz\n
    > If so, what does it say for .24 and .28?

    There is no such message in the log.

    > Can you please provide the output of 'x86info -a' (as root) after loading
    > the cpuid module?

    Here it is:

    x86info v1.21. Dave Jones 2001-2007
    Feedback to <davej@redhat.com>.

    Found 1 CPU
    --------------------------------------------------------------------------
    eax in: 0x00000000, eax = 00000002 ebx = 756e6547 ecx = 6c65746e edx =
    49656e69
    eax in: 0x00000001, eax = 00000f12 ebx = 00010808 ecx = 00000000 edx =
    3febfbff
    eax in: 0x00000002, eax = 665b5001 ebx = 00000000 ecx = 00000000 edx =
    007a7040

    eax in: 0x80000000, eax = 80000004 ebx = 00000000 ecx = 00000000 edx =
    00000000
    eax in: 0x80000001, eax = 00000000 ebx = 00000000 ecx = 00000000 edx =
    00000000
    eax in: 0x80000002, eax = 20202020 ebx = 20202020 ecx = 20202020 edx =
    6e492020
    eax in: 0x80000003, eax = 286c6574 ebx = 50202952 ecx = 69746e65 edx =
    52286d75
    eax in: 0x80000004, eax = 20342029 ebx = 20555043 ecx = 30362e31 edx =
    007a4847

    Family: 15 Model: 1 Stepping: 2 Type: 0 Brand: 8
    CPU Model: Pentium 4 (Willamette) [D0] Original OEM
    Processor name string: Intel(R) Pentium(R) 4 CPU 1.60GHz

    Feature flags:
    fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36
    clflsh ds acpi mmx fxsr sse sse2 ss ht tm
    Extended feature flags:


    Pentium 4 specific MSRs:
    IA32_PLATFORM_ID=0008000000000000
    System bus in order queue depth=12
    MSR_EBC_FREQUENCY_ID=000000008201ff00
    IA32_BIOS_SIGN_ID=0000002e00000000
    Processor serial number is enabled
    Fast string enable is set
    x87 FPU Fopcode compatability mode is unset
    Thermal monitor enable is set
    Split lock disable is unset
    L3 cache disable is set
    Performance monitoring is available
    Suppress lock enable is unset
    Prefetch queue disable is unset
    FERR# Interrupt reporting enable is unset
    Branch trace storage unavailable is unset
    Precise Event Based Sampling Unavailable is unset

    Cache info
    Instruction trace cache: 12K uOps, 8-way associative.
    L1 Data cache: 8KB, sectored, 4-way associative. 64 byte line size.
    L2 unified cache: 256KB, sectored, 8-way associative. 64 byte line size.
    TLB info
    Instruction TLB: 4K, 2MB or 4MB pages, fully associative, 64 entries.
    Data TLB: 4KB or 4MB pages, fully associative, 64 entries.

    Number of reporting banks : 4

    Number of extended MC registers : 12


    Bank: 0 (0x400)
    MC0CTL: 00000000 00000000 00000000 00000000
    00000000 00000000 11111111 11111111
    MC0STATUS: 00000000 00000000 00000000 00000000
    00000000 00000000 00000000 00000000
    MC0ADDR: 00000000 00000000 00000000 00000000
    00000000 00000000 00000000 00000000

    Bank: 1 (0x404)
    MC1CTL: 00000000 00000000 00000000 00000000
    00000000 00000011 10000000 00000000
    MC1STATUS: 00000000 00000000 00000000 00000000
    00000000 00000000 00000000 00000000
    MC1ADDR: 00000000 00000000 00000000 00000000
    00000000 00000000 00000000 00000000

    Bank: 2 (0x408)
    MC2CTL: 00000000 00000000 00000000 00000000
    00000000 00000000 00000000 10000000
    MC2STATUS: 00000000 00000000 00000000 00000000
    00000000 00000000 00000000 00000000
    MC2ADDR: Couldn't read MSR 0x40a

    Bank: 3 (0x40c)
    MC3CTL: 00000000 00000000 00000000 00000000
    00000000 00000000 00000000 01111110
    MC3STATUS: 00000000 00000000 00000000 00000000
    00000000 00000000 00000000 00000000
    MC3ADDR: 00000000 00000000 00000000 00000000
    00000000 00000000 00000000 00000000

    The physical package supports 1 logical processors

    Microcode version: 0x000000000000002e

    Connector type: Socket423 (PGA423 Socket)

    Datasheet: http://developer.intel.com/design/pentium4/datashts/24919805.pdf
    Errata: http://developer.intel.com/design/pentium4/specupdt/249199.htm

    MTRR registers:
    MTRRcap (0xfe): 0x0000000000000508
    MTRRphysBase0 (0x200): 0x0000000000000006
    MTRRphysMask0 (0x201): 0x0000000fc0000800
    MTRRphysBase1 (0x202): 0x0000000000000000
    MTRRphysMask1 (0x203): 0x0000000000000000
    MTRRphysBase2 (0x204): 0x0000000000000000
    MTRRphysMask2 (0x205): 0x0000000000000000
    MTRRphysBase3 (0x206): 0x0000000000000000
    MTRRphysMask3 (0x207): 0x0000000000000000
    MTRRphysBase4 (0x208): 0x0000000000000000
    MTRRphysMask4 (0x209): 0x0000000000000000
    MTRRphysBase5 (0x20a): 0x0000000000000000
    MTRRphysMask5 (0x20b): 0x0000000000000000
    MTRRphysBase6 (0x20c): 0x0000000000000000
    MTRRphysMask6 (0x20d): 0x0000000000000000
    MTRRphysBase7 (0x20e): 0x0000000000000000
    MTRRphysMask7 (0x20f): 0x0000000000000000
    MTRRfix64K_00000 (0x250): 0x0606060606060606
    MTRRfix16K_80000 (0x258): 0x0606060606060606
    MTRRfix16K_A0000 (0x259): 0x0000000000000000
    MTRRfix4K_C8000 (0x269): 0x0000000000000000
    MTRRfix4K_D0000 0x26a: 0x0000000000000000
    MTRRfix4K_D8000 0x26b: 0x0000000000000000
    MTRRfix4K_E0000 0x26c: 0x0505050505050505
    MTRRfix4K_E8000 0x26d: 0x0505050505050505
    MTRRfix4K_F0000 0x26e: 0x0505050505050505
    MTRRfix4K_F8000 0x26f: 0x0505050505050505
    MTRRdefType (0x2ff): 0x0000000000000c00


    1.60GHz processor (estimate).

    best regards and thank you for your help
    Jörg
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