CPU frequency detection error?

[Rui Paulo]

On Mar 9, 2008, at 8:42 AM, Tz-Huan Huang wrote:

> Hi,
>
> I have a IBM x3550 running 7-stable.
> The CPU is
>
> CPU: Intel(R) Xeon(R) CPU           E5345  @ 2.33GHz (11368.47-MHz  
> K8-class CPU)
>  Origin = "GenuineIntel"  Id = 0x6fb  Stepping = 11
>   
> Features 
> = 
> 0xbfebfbff 
> < 
> FPU 
> ,VME 
> ,DE 
> ,PSE 
> ,TSC 
> ,MSR 
> ,PAE 
> ,MCE 
> ,CX8 
> ,APIC 
> ,SEP 
> ,MTRR 
> ,PGE 
> ,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
>   
> Features2 
> =0x4e3bd<SSE3,RSVD2,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,DCA>
>  AMD Features=0x20100800<SYSCALL,NX,LM>
>  AMD Features2=0x1<LAHF>
>  Cores per package: 4
>
> But the dev.cpu.0 shows
>
> dev.cpu.0.freq: 11311
> dev.cpu.0.freq_levels: 11311/-1 9897/-1 8483/-1 7069/-1 5655/-1
> 4241/-1 2827/-1 1413/-1
>
> The max frequency 11311 (11.3GHz?) is far larger than it should be  
> (2.33GHz).
> It causes something wrong on this system, for example:
>
> [huan at cml2 ~]$ time sleep 1
> real	0m4.929s
> user	0m0.000s
> sys	0m0.000s
>
> Any suggestion? Thanks a lot~

Escape to the boot loader prompt and type:
set kern.hz=100
boot

And then show us your dmesg again, please.

Regards,
--
Rui Paulo