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authorDave Jones <davej@redhat.com>2006-12-06 20:37:09 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-07 08:39:35 -0800
commit8f63fdbbd6de7d734c036948bf7c4b2bebe3ad99 (patch)
tree0cd665ca44f188922064eb4dc42625463975b9e7 /lib/list_debug.c
parent5d469ec0f40d65b2a0a704402990a43b2dafe197 (diff)
downloadlinux-8f63fdbbd6de7d734c036948bf7c4b2bebe3ad99.tar.gz
[PATCH] More list debugging context
Print the other (hopefully) known good pointer when list_head debugging
too, which may yield additional clues.

Also fix for 80-columns to win akpm brownie points.

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'lib/list_debug.c')
-rw-r--r--lib/list_debug.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/lib/list_debug.c b/lib/list_debug.c
index 7ba9d823d388..4350ba9655bd 100644
--- a/lib/list_debug.c
+++ b/lib/list_debug.c
@@ -21,13 +21,15 @@ void __list_add(struct list_head *new,
 			      struct list_head *next)
 {
 	if (unlikely(next->prev != prev)) {
-		printk(KERN_ERR "list_add corruption. next->prev should be %p, but was %p\n",
-			prev, next->prev);
+		printk(KERN_ERR "list_add corruption. next->prev should be "
+			"prev (%p), but was %p. (next=%p).\n",
+			prev, next->prev, next);
 		BUG();
 	}
 	if (unlikely(prev->next != next)) {
-		printk(KERN_ERR "list_add corruption. prev->next should be %p, but was %p\n",
-			next, prev->next);
+		printk(KERN_ERR "list_add corruption. prev->next should be "
+			"next (%p), but was %p. (prev=%p).\n",
+			next, prev->next, prev);
 		BUG();
 	}
 	next->prev = new;