Re: 2.6.26, PAT and AMD family 6

From: Thomas Gleixner
Date: Wed May 07 2008 - 20:22:08 EST


On Thu, 8 May 2008, Rene Herman wrote:
> On 08-05-08 02:03, H. Peter Anvin wrote:
> > Rene Herman wrote:
> > > >
> > > > Okay, that is utter nonsense. /proc/cpuinfo has always been, and will
> > > > always be, the CPU *AS THE KERNEL SEES IT*. If you want something else,
> > > > use x86info(1).
> > >
> > > What a lovely way of syncing reality with your definitions. The kernel
> > > _does_ see that my CPU features PAT, it just refuses to use it because
> > > it doesn't trust it enough. Vital difference. Maybe not to the kernel,
> > > but definitely to me, the user. /proc/cpuinfo is a user interface.
> > >
> >
> > No, /proc/cpuinfo is informing the user about the kernel's view of the CPU.
>
> And again, the kernel DOES see that my CPU features PAT, it just refuses
> to use it.

Yuck, because your CPU has the PAT feature the kernel has an obligation
to support it ?

Nice try.

tglx
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