Yanmin,
On Mon, Oct 22, 2007 at 10:55:08AM +0800, Zhang, Yanmin wrote:
> > static int pfm_core_probe_pmu(void)
> > {
> > unsigned int i;
> >
> > /*
> > * Check for Intel Core processor explicitely
> > * Checking for cpu_has_perfmon is not enough as this
> > * matches intel Core Duo/Core Solo but none supports
> > * PEBS.
> > *
> > * Intel Core = arch perfmon v2 + PEBS
> > */
> > if (cpu_data->x86 != 6 || cpu_data->x86_model != 15)
> >
> > If you come in with 6,14, this should fail. But it seems you have things
> > compiled in, so maybe there is something wrong there
>
> I ran into the same issue on my new quad-core machine. Is there any update?
>
> My cpu family is 6 and model is 15.
>
I was able to reproduce the problem by compiling all perfmon modules as builtin.
I think this comes from the fact that perfmon module initialization occurs
BEFORE
the cpu_data structure is initialized. I think the fix is to rely on
boot_cpu_data
and not just cpu_data. I am going to verify this.
Thanks.
--
-Stephane
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