linux-kernel - Re: [PATCH 1/1] perf/x86/intel: make error messages less confusing

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Date:   Wed, 22 Aug 2018 10:45:58 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Eduardo Valentin <eduval@...zon.com>
Cc:     Andi Kleen <ak@...ux.intel.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Kan Liang <kan.liang@...ux.intel.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Jia Zhang <qianyue.zj@...baba-inc.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] perf/x86/intel: make error messages less confusing

On Tue, Aug 21, 2018 at 04:05:22PM -0700, Eduardo Valentin wrote:
> On Tue, Aug 21, 2018 at 03:09:37PM -0700, Andi Kleen wrote:
> > On Tue, Aug 21, 2018 at 02:15:28PM -0700, Eduardo Valentin wrote:

> > > [ 0.100114] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only.

> > Maybe it is confusing (why exactly?), but it doesn't seem to me that your
> > new message is any better.
> 
> Yeah, the part that says "unsupported CPU" is the confusing part,
> I get people thinking that the specific reported CPU model is not
> supported by the kernel :-)

It is prefixed by: "Performance Events:", what is the problem?