linux-kernel - Re: [RFC][PATCH] tracing: Print nasty banner when trace

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Message-ID: <20140528134120.3328605e@gandalf.local.home>
Date:	Wed, 28 May 2014 13:41:20 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Borislav Petkov <bp@...en8.de>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Theodore Ts'o <tytso@....edu>, Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Peter Hurley <peter@...leysoftware.com>
Subject: Re: [RFC][PATCH] tracing: Print nasty banner when trace_printk() is
 in use

On Wed, 28 May 2014 19:26:18 +0200
Borislav Petkov <bp@...en8.de> wrote:

> On Wed, May 28, 2014 at 01:14:40PM -0400, Steven Rostedt wrote:
> > Here's the banner:
> > 
> >  ****************************************
> >  ** NOTICE NOTICE NOTICE NOTICE NOTICE **
> >  ** trace_printk() being used.         **
> >  ** Allocating extra memory for it     **
> >  ****************************************
> > 
> > Hmm, maybe I should add "Not for production use" to scare people even
> > more?
> 
> Yes, and at least some swearing - this is the linux kernel for
> chrissake. Or are you gone soft too?
> 

Going soft? Nah, you know me.  I never swear, so how could not swearing
cause me to go soft :-)


Perhaps a: 

  *********************************************************
  ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE    **
  **                                                     **
  ** trace_printk() being used.                          **
  ** Allocating extra memory for it                      **
  **                                                     **
  ** This means that this is a DEBUG kernel and it is    **
  ** unsafe for production use.                          **
  **                                                     **
  ** If you see this message and you are not debugging   **
  ** the kernel, report this immediately to your vendor! **
  **                                                     **
  ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE    **
  *********************************************************

Maybe that will work?

-- Steve
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