From: Borislav Petkov <bp@xxxxxxx> Subject: mm/slub: add a dump_stack() to the unexpected GFP check We wish to know who is doing such a thing. slab.c does this. Link: http://lkml.kernel.org/r/20170116091643.15260-1-bp@xxxxxxxxx Signed-off-by: Borislav Petkov <bp@xxxxxxx> Acked-by: Michal Hocko <mhocko@xxxxxxxx> Acked-by: Vlastimil Babka <vbabka@xxxxxxx> Cc: Christoph Lameter <cl@xxxxxxxxx> Cc: Pekka Enberg <penberg@xxxxxxxxxx> Cc: David Rientjes <rientjes@xxxxxxxxxx> Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/slub.c | 1 + 1 file changed, 1 insertion(+) diff -puN mm/slub.c~mm-slub-add-a-dump_stack-to-the-unexpected-gfp-check mm/slub.c --- a/mm/slub.c~mm-slub-add-a-dump_stack-to-the-unexpected-gfp-check +++ a/mm/slub.c @@ -1630,6 +1630,7 @@ static struct page *new_slab(struct kmem 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(); } return allocate_slab(s, _ -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
