if (driver_desc->ioctl_handler_cb)
                        return driver_desc->ioctl_handler_cb(filp, cmd, argp);
 
-               gasket_log_error(
+               gasket_log_debug(
                        gasket_dev, "Received unknown ioctl 0x%x", cmd);
                return -EINVAL;
        }
 
                }
        } else if (!gasket_ioctl_check_permissions(filp, cmd)) {
                trace_gasket_ioctl_exit(-EPERM);
-               gasket_log_error(gasket_dev, "ioctl cmd=%x noperm.", cmd);
+               gasket_log_debug(gasket_dev, "ioctl cmd=%x noperm.", cmd);
                return -EPERM;
        }
 
                 * the arg.
                 */
                trace_gasket_ioctl_integer_data(arg);
-               gasket_log_warn(
+               gasket_log_debug(
                        gasket_dev,
                        "Unknown ioctl cmd=0x%x not caught by "
                        "gasket_is_supported_ioctl",
                gasket_dev->page_table[ibuf.page_table_index]);
 
        if (ibuf.size > max_page_table_size) {
-               gasket_log_error(
+               gasket_log_debug(
                        gasket_dev,
                        "Partition request 0x%llx too large, max is 0x%x.",
                        ibuf.size, max_page_table_size);