Subject: Re: [PATCH v2 1/3] init/main.c: Give init_task a canary

From: Chuck Ebbert <[email-masked]>
Date: Wed, 10 Sep 2014 02:26:54 -0500

On Tue,  9 Sep 2014 10:42:27 +0100
Aaron Tomlin <[email-masked]> wrote:

> +void task_stack_end_magic(struct task_struct *tsk)
> +{
> +	unsigned long *stackend;
> +
> +	stackend = end_of_stack(tsk);
> +	*stackend = STACK_END_MAGIC;	/* for overflow detection */
> +}
> +

For clarity this should probably be called set_task_stack_end_magic().

And has this been tested on parisc and metag, which use STACK_GROWSUP ?
I can't see how end_of_stack() as it's defined now could work on those archs.