Re: 2.6.15-rt17

[Steven Rostedt]

On Fri, 24 Feb 2006, Ingo Molnar wrote:

>
> * Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
>
> > +	printk("| This is not a BUG\n");
> > +	printk("| turn off CONFIG_DEBUG_STACK_OVERFLOW if you don't want this\n");
>
> i added the patch below - we want to know about too high stack
> footprints.

Yeah you're right, those should be reported.

>
>  		MAX_STACK-worst_stack_left, (long)MAX_STACK);
> +	fill_ratio = (MAX_STACK-worst_stack_left)*100/(long)MAX_STACK;
> +	printk("| Stack fill ratio: %02ld%%", fill_ratio);
> +	if (fill_ratio >= 90)
> +		printk(" - BUG: that's quite high, please report this!\n");
> +	else
> +		printk(" - that's still OK, no need to report this.\n");
>  	printk("------------|\n");

On the non bug case, I would still state the way to turn it off.  It
becomes quite annoying if there are no bugs, and a non kernel hacker may
not know how to disable it.

-- Steve


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