From: Catalin Marinas <catalin.marinas@arm.com>
Date: Mon, 19 Jul 2010 10:54:16 +0000 (+0100)
Subject: kmemleak: Show more information for objects found by alias
X-Git-Tag: upstream/snapshot3+hdmi~13514^2~4
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a7686a45c07462b78df5ac15fc696a86e57ccf91;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

kmemleak: Show more information for objects found by alias

There may be situations when an object is freed using a pointer inside
the memory block. Kmemleak should show more information to help with
debugging.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
---

diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index 2c0d032..c2c9feb 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -398,7 +398,9 @@ static struct kmemleak_object *lookup_object(unsigned long ptr, int alias)
 		object = prio_tree_entry(node, struct kmemleak_object,
 					 tree_node);
 		if (!alias && object->pointer != ptr) {
-			kmemleak_warn("Found object by alias");
+			pr_warning("Found object by alias at 0x%08lx\n", ptr);
+			dump_stack();
+			dump_object_info(object);
 			object = NULL;
 		}
 	} else