diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index cd65ef7c7c3f..ebf36f616ebf 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -528,8 +528,12 @@ static int csum_dirty_buffer(struct btrfs_fs_info *fs_info, struct page *page)
 	 * Please do not consolidate these warnings into a single if.
 	 * It is useful to know what went wrong.
 	 */
-	if (WARN_ON(found_start != start))
+	if (WARN_ON(found_start != start)) {
+		btrfs_warn(fs_info,
+		"page_start and eb_start mismatch, eb_start=%llu page_start=%llu",
+			found_start, start);
 		return -EUCLEAN;
+	}
 	if (WARN_ON(!PageUptodate(page)))
 		return -EUCLEAN;