On Mon, Jan 16, 2017 at 10:16:43AM +0100, Borislav Petkov wrote:
> From: Borislav Petkov <bp@xxxxxxx>
>
> We wanna know who's doing such a thing. Like slab.c does that.
>
> Signed-off-by: Borislav Petkov <bp@xxxxxxx>
> ---
> mm/slub.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/mm/slub.c b/mm/slub.c
> index 067598a00849..1b0fa7625d6d 100644
> --- a/mm/slub.c
> +++ b/mm/slub.c
> @@ -1623,6 +1623,7 @@ static struct page *new_slab(struct kmem_cache *s, gfp_t flags, int node)
> flags &= ~GFP_SLAB_BUG_MASK;
> pr_warn("Unexpected gfp: %#x (%pGg). Fixing up to gfp: %#x (%pGg). Fix your code!\n",
> invalid_mask, &invalid_mask, flags, &flags);
> + dump_stack();
Will it make sense to change these two lines above to WARN(true, .....)?
> }
>
> return allocate_slab(s,
> --
> 2.11.0
>
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