diff --git a/[refs] b/[refs]
index de7fc72aede5..4bb5089f56b0 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d19c2ee0b8d1cd83f8bc0f1f5e94e6b6ec71ea10
+refs/heads/master: 3a0f5bbb1a36ed113065099d3dc69a66e1c8d567
diff --git a/trunk/drivers/md/md.c b/trunk/drivers/md/md.c
index 40cb79ac4039..38a0a5741d52 100644
--- a/trunk/drivers/md/md.c
+++ b/trunk/drivers/md/md.c
@@ -389,8 +389,12 @@ static int super_written(struct bio *bio, unsigned int bytes_done, int error)
 	if (bio->bi_size)
 		return 1;
 
-	if (error || !test_bit(BIO_UPTODATE, &bio->bi_flags))
+	if (error || !test_bit(BIO_UPTODATE, &bio->bi_flags)) {
+		printk("md: super_written gets error=%d, uptodate=%d\n",
+		       error, test_bit(BIO_UPTODATE, &bio->bi_flags));
+		WARN_ON(test_bit(BIO_UPTODATE, &bio->bi_flags));
 		md_error(mddev, rdev);
+	}
 
 	if (atomic_dec_and_test(&mddev->pending_writes))
 		wake_up(&mddev->sb_wait);