xenbus_dev_fatal
printf_hook(xenbus_dev_fatal, 3, 4); /* include/xen/xenbus.h */
xenbus_dev_fatal(dev, err, "writing new state");
xenbus_dev_fatal(dev, err, "granting access to ring page");
xenbus_dev_fatal(dev, err, "allocating event channel");
xenbus_dev_fatal(dev, err, "adding watch on %s", path);
xenbus_dev_fatal(xendev, err,
xenbus_dev_fatal(xendev, X_ENOENT, "missing other end from %s",
xenbus_dev_fatal(&pdp->xd_xsdev, errno, errstr);
extern void xenbus_dev_fatal(struct xenbus_device *dev,