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Date: Tue, 6 Jan 2015 05:50:18 +0400
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Subject: Re: Haswell CPU Feature
From: Andrey Fesenko <f0andrey@gmail.com>
To: Sean Bruno <sbruno@freebsd.org>
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Cc: FreeBSD current <freebsd-current@freebsd.org>
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On Tue, Jan 6, 2015 at 4:24 AM, Sean Bruno <sbruno@ignoranthack.me> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA512
>
> On 01/05/15 16:57, Neel Natu wrote:
>> Congratulations, you have the ability to debug the Haswell silicon
>>
> HA!
>
> Is this turned on purposefully (its a feature of the CPU) or is this
> turned on unintentionally and is a bug in manufacturing?
>
> sean

My desktop i5-4570 contain this flag too

Origin="GenuineIntel"  Id=0x306c3  Family=0x6  Model=0x3c  Stepping=3
  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=0x7ffafbff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,<b11>,FMA,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,TSCDLT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND>