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From: Tom H. <to...@co...> - 2005-08-10 18:56:52
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In message <200...@ac...>
Julian Seward <js...@ac...> wrote:
> This sounds like an oldish Northwood ...
>
> > model name : Intel(R) Pentium(R) 4 CPU 1700MHz
> > stepping : 10
> > cpu MHz : 1695.248
> > cache size : 256 KB
> > flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov
> > pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
>
> one of which I also have, but it says this:
>
> model name : Intel(R) Pentium(R) 4 CPU 1.70GHz
> stepping : 8
> cpu MHz : 1718.525
> cache size : 256 KB
> flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat
> pse36 clflush dts acpi mmx fxsr sse sse2 ss
>
> So there's a "sep" there. And it's an older stepping than yours. wtf?!
>
> Anybody know any headbanging-grade x86 gurus who understand this stuff?
It's a RedHat kernel thing - they have patched their kernels to
disable sysenter. If I query the cpuid directly it does report
support for sysenter.
Tom
--
Tom Hughes (to...@co...)
http://www.compton.nu/
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