Re: Discrepancies between /proc/cpuinfo and Dave J's x86info
Jonathan Lundell (jlundell@pobox.com)
Tue, 10 Jul 2001 21:37:05 -0700
At 9:27 PM -0700 2001-07-10, H. Peter Anvin wrote:
> > According to Dave J's utility the cpu's appear to be exactly the same
>> just as the Intel boxes said when I bought them. What might be causing
>> these values to be different. And if the BIOS is setting things up
>> incorrectly then why does Dave J's utility show the correct values?
>> Thanks for any help.
>>
>
>/proc/cpuinfo shows "cooked" values which may be modified by the
>kernel, depending on what it knows about CPU errata or kernel
>capabilities.
Max cpuid level doesn't get cooked by the kernel, though (at least
not in 2.4.6).
Level 3 is the Intel's CPU serial number "feature". Didn't Intel back
off on that? Maybe that has something to do with it, and perhaps the
utility is doing the cooking.
--
/Jonathan Lundell.
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