while (node) {
                struct extent_status *es;
                es = rb_entry(node, struct extent_status, rb_node);
-               printk(KERN_DEBUG " [%u/%u) %llu %llx",
+               printk(KERN_DEBUG " [%u/%u) %llu %x",
                       es->es_lblk, es->es_len,
                       ext4_es_pblock(es), ext4_es_status(es));
                node = rb_next(node);
                                pr_warn("ES insert assertion failed for "
                                        "inode: %lu we can find an extent "
                                        "at block [%d/%d/%llu/%c], but we "
-                                       "want to add an delayed/hole extent "
-                                       "[%d/%d/%llu/%llx]\n",
+                                       "want to add a delayed/hole extent "
+                                       "[%d/%d/%llu/%x]\n",
                                        inode->i_ino, ee_block, ee_len,
                                        ee_start, ee_status ? 'u' : 'w',
                                        es->es_lblk, es->es_len,
                if (!ext4_es_is_delayed(es) && !ext4_es_is_hole(es)) {
                        pr_warn("ES insert assertion failed for inode: %lu "
                                "can't find an extent at block %d but we want "
-                               "to add an written/unwritten extent "
-                               "[%d/%d/%llu/%llx]\n", inode->i_ino,
+                               "to add a written/unwritten extent "
+                               "[%d/%d/%llu/%x]\n", inode->i_ino,
                                es->es_lblk, es->es_lblk, es->es_len,
                                ext4_es_pblock(es), ext4_es_status(es));
                }
                         */
                        pr_warn("ES insert assertion failed for inode: %lu "
                                "We can find blocks but we want to add a "
-                               "delayed/hole extent [%d/%d/%llu/%llx]\n",
+                               "delayed/hole extent [%d/%d/%llu/%x]\n",
                                inode->i_ino, es->es_lblk, es->es_len,
                                ext4_es_pblock(es), ext4_es_status(es));
                        return;
                if (ext4_es_is_written(es)) {
                        pr_warn("ES insert assertion failed for inode: %lu "
                                "We can't find the block but we want to add "
-                               "an written extent [%d/%d/%llu/%llx]\n",
+                               "a written extent [%d/%d/%llu/%x]\n",
                                inode->i_ino, es->es_lblk, es->es_len,
                                ext4_es_pblock(es), ext4_es_status(es));
                        return;