linux-kernel - Re: [PATCH v2] init: Scream bloody murder if interrupts are enabled too early

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Date:	Fri, 08 Mar 2013 17:35:00 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Ard van Breemen <ard@...egraafnet.nl>
Subject: Re: [PATCH v2] init: Scream bloody murder if interrupts are enabled
 too early

On Fri, 2013-03-08 at 13:55 -0800, Andrew Morton wrote:
> On Fri, 08 Mar 2013 09:48:12 -0500 Steven Rostedt <rostedt@...dmis.org> wrote:
> 
> > Also, while examining other warnings in init/main.c, I found two other
> > locations that deserve a bloody murder scream if their conditions are
> > hit, and updated them accordingly.
> 
> So the whole effect of this patch is to spew a larger volume of
> unuseful stuff (such as uninteresting stack traces) onto the console so
> people are more likely to notice it?

Yep!

>   Hmpf.  I think I prefer
> 
> akpm3:/usr/src/25> banner "OMG\!\!"      
> ####### #     #  #####    ###     ###
> #     # ##   ## #     #   ###     ###
> #     # # # # # #         ###     ###
> #     # #  #  # #  ####    #       #
> #     # #     # #     #
> #     # #     # #     #   ###     ###
> ####### #     #  #####    ###     ###
> 

I rather print out this: http://www.100mb.nl/


> 
> Maybe we should reduce the amount of goop we printk out at boot
> instead ;)

But I seldom read the boot messages, that's what tools are for ;-)

ktest.pl keys off of a stack trace, and so does the tip automated tools,
and I'm sure other tools do too. Not sure anything looks for a simple
"This is a bug, don't do that".

-- Steve


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