Re: F00F

Thomas Wouters (thomas@xs4all.nl)
Wed, 2 Sep 1998 12:32:35 +0200 (CEST)


> > processor : 1
> > cpu family : 5
> > model : Pentium 75+
> > vendor_id : GenuineIntel
> > stepping : 12
> > fdiv_bug : no
> > hlt_bug : no
> > sep_bug : no
> > f00f_bug : no <- Unless my P133 was 'fixed'
> > fpu : yes
> > fpu_exception : yes
> > cpuid level : 1
> > wp : yes
> > flags : fpu vme de pse tsc msr mce cx8 apic
> > bogomips : 52.84

> > I do see the 'Intel Pentium with F0 0F bug - workaround enabled.' message,
> > but last time someone else reported this a week or so ago, they said they
> > could f00f their machine anyway.

Same here. I see the message, /proc/cpuinfo lists the bug as not there.
However, the workaround IS enabled, the standard f00f 'exploit' fails (With
Illegal Instruction.) Browsing the source I dont see how it could happen,
unless the 'boot_cpu_data' struct is not what is used by proc. But setup.c
seems to copy it just fine :P

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