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Subject[PATCH 1/3] kmemleak: Show more information for objects found by alias
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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>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
---
mm/kmemleak.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
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


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