When we get corruption reports, it's useful to see if the kernel was

tainted, to rule out problems we can't do anything about.

Signed-off-by: Dave Jones <davej@redhat.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/slab.c b/mm/slab.c
index 5bfc2047afe12b137e389af5bd8013f949d39131..cb77784ed5970ace5820f8d02a1ae167e12cd3c4 100644 (file)
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1927,8 +1927,8 @@ static void check_poison_obj(struct kmem_cache *cachep, void *objp)
                        /* Print header */
                        if (lines == 0) {
                                printk(KERN_ERR
-                                       "Slab corruption: %s start=%p, len=%d\n",
-                                       cachep->name, realobj, size);
+                                       "Slab corruption (%s): %s start=%p, len=%d\n",
+                                       print_tainted(), cachep->name, realobj, size);
                                print_objinfo(cachep, objp, 0);
                        }
                        /* Hexdump the affected line */
@@ -3037,8 +3037,8 @@ static void check_slabp(struct kmem_cache *cachep, struct slab *slabp)
        if (entries != cachep->num - slabp->inuse) {
 bad:
                printk(KERN_ERR "slab: Internal list corruption detected in "
-                               "cache '%s'(%d), slabp %p(%d). Hexdump:\n",
-                       cachep->name, cachep->num, slabp, slabp->inuse);
+                               "cache '%s'(%d), slabp %p(%d). Tainted(%s). Hexdump:\n",
+                       cachep->name, cachep->num, slabp, slabp->inuse, print_tainted());
                print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 16, 1, slabp,
                        sizeof(*slabp) + cachep->num * sizeof(kmem_bufctl_t),
                        1);