On Mon, 2007-10-15 at 13:13 -0700, Stephane Eranian wrote:
> Will,
>
> On Mon, Oct 15, 2007 at 02:44:50PM -0400, William Cohen wrote:
> >
> > Below is the part of dmesg related to perfmon processors identification:
> >
> > perfmon: unsupported CPU model 14
> > perfmon: Intel P6 processor Family PMU detection failed
> > perfmon: unsupported family=6
>
> Normal.
>
> > perfmon: Intel P4 PMU detection failed
>
> Normal
>
> > perfmon: nmi_watchdog=-1 nmi_active=0 force_nmi=0
> > perfmon: PEBS supported, enabled
> > perfmon: Intel Core PMU detected, 4 PMCs, 5 PMDs, 5 counters (31 bits)
> > perfmon: Intel Core PMU installed
>
> Not normal.
>
> > perfmon: detected architecural perfmon v1
> > perfmon: num_gen=2 width=40 num_fixed=0 width=0
> > perfmon: register Intel architectural PMU error -16
>
> That's normal because there is already a description registered.
>
> > Looks like it finds the hardware, but later fails to register it (line with
> > "error -16", -EBUSY. So something like the following to generate some more
> > detail information information from the PFM_INFO's would be useful:
> >
> In perfmon_intel_core.c, look at the :
>
> 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.
Thanks,
Yanmin
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