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Re: [PATCH v6: 2/4] x86: Add enabling of the R3MWAIT during boot

Started byPavel Machek <pavel@ucw.cz>
First post2016-11-26 14:20 +0100
Last post2016-12-09 13:50 +0100
Articles 3 — 3 participants

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  Re: [PATCH v6: 2/4] x86: Add enabling of the R3MWAIT during boot Pavel Machek <pavel@ucw.cz> - 2016-11-26 14:20 +0100
    Re: [PATCH v6: 2/4] x86: Add enabling of the R3MWAIT during boot Thomas Gleixner <tglx@linutronix.de> - 2016-11-26 14:30 +0100
      RE: [PATCH v6: 2/4] x86: Add enabling of the R3MWAIT during boot "Andrejczuk, Grzegorz" <grzegorz.andrejczuk@intel.com> - 2016-12-09 13:50 +0100

#1530666 — Re: [PATCH v6: 2/4] x86: Add enabling of the R3MWAIT during boot

FromPavel Machek <pavel@ucw.cz>
Date2016-11-26 14:20 +0100
SubjectRe: [PATCH v6: 2/4] x86: Add enabling of the R3MWAIT during boot
Message-ID<sHL3z-74K-5@gated-at.bofh.it>
On Thu 2016-10-27 16:38:13, Thomas Gleixner wrote:
> On Thu, 27 Oct 2016, Grzegorz Andrejczuk wrote:
> > +#ifdef CONFIG_X86_64
> > +static int phi_r3mwait_disabled __read_mostly;
> > +
> > +static int __init phir3mwait_disable(char *__unused)
> > +{
> > +	phi_r3mwait_disabled = 1;
> > +	pr_warn("x86/phir3mwait: Disabled ring 3 MWAIT for Xeon Phi");
> 
> Why would that be a warning? The sysadmin added the command line switch, so
> why does he needs to be warned?

Its telling admin he did not make a typo on the command line. We often do that....

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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#1530668

FromThomas Gleixner <tglx@linutronix.de>
Date2016-11-26 14:30 +0100
Message-ID<sHLdf-77O-3@gated-at.bofh.it>
In reply to#1530666
On Sat, 26 Nov 2016, Pavel Machek wrote:

> On Thu 2016-10-27 16:38:13, Thomas Gleixner wrote:
> > On Thu, 27 Oct 2016, Grzegorz Andrejczuk wrote:
> > > +#ifdef CONFIG_X86_64
> > > +static int phi_r3mwait_disabled __read_mostly;
> > > +
> > > +static int __init phir3mwait_disable(char *__unused)
> > > +{
> > > +	phi_r3mwait_disabled = 1;
> > > +	pr_warn("x86/phir3mwait: Disabled ring 3 MWAIT for Xeon Phi");
> > 
> > Why would that be a warning? The sysadmin added the command line switch, so
> > why does he needs to be warned?
> 
> Its telling admin he did not make a typo on the command line. We often do that....

Definitely not at the warning level.

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#1539323

From"Andrejczuk, Grzegorz" <grzegorz.andrejczuk@intel.com>
Date2016-12-09 13:50 +0100
Message-ID<sMsMF-3hS-1@gated-at.bofh.it>
In reply to#1530668
> > On Thu 2016-10-27 16:38:13, Thomas Gleixner wrote:
> > > On Thu, 27 Oct 2016, Grzegorz Andrejczuk wrote:
> > > > +#ifdef CONFIG_X86_64
> > > > +static int phi_r3mwait_disabled __read_mostly;
> > > > +
> > > > +static int __init phir3mwait_disable(char *__unused) {
> > > > +	phi_r3mwait_disabled = 1;
> > > > +	pr_warn("x86/phir3mwait: Disabled ring 3 MWAIT for Xeon Phi");
> > > 
> > > Why would that be a warning? The sysadmin added the command line 
> > > switch, so why does he needs to be warned?
> > 
> > Its telling admin he did not make a typo on the command line. We often do that....
>
> Definitely not at the warning level.

Is info level OK for that message?

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