Re: [PATCH] oom killer (Core)

[William Lee Irwin III <wli@holomorphy.com>]

On Fri, Dec 03, 2004 at 03:28:54AM +0100, Andrea Arcangeli wrote:
> +	if (mm == &init_mm) {
> +		mmput(mm);
> +		return NULL;
> +	}

On Fri, Dec 03, 2004 at 03:28:54AM +0100, Andrea Arcangeli wrote:
> +	if (PTR_ERR(p) == -1UL)
> +		goto out;
> +
>  	/* Found nothing?!?! Either we hang forever, or we panic. */
>  	if (!p) {
> +		read_unlock(&tasklist_lock);
>  		show_free_areas();
>  		panic("Out of memory and no killable processes...\n");
>  	}

Maybe the mm == &init_mm case should return an ERR_PTR also, as that is
a sign of a transient error, not cause for a hard panic.


-- wli