VTBALLOON_ERROR
#define VTBALLOON_DEFAULT_DEBUG_LEVEL VTBALLOON_INFO | VTBALLOON_ERROR
vtballoon_dprintf(sc, VTBALLOON_ERROR, "cannot allocate page frame request array (error:%d)\n", error);
vtballoon_dprintf(sc, VTBALLOON_ERROR, "cannot allocate interrupts (error:%d)\n", error);
vtballoon_dprintf(sc, VTBALLOON_ERROR, "cannot allocate virtqueues (error:%d)\n", error);
vtballoon_dprintf(sc, VTBALLOON_ERROR, "Invalid interrupt vector count: %d\n", sc->vtballoon_nintr);
vtballoon_dprintf(sc, VTBALLOON_ERROR, "cannot bind virtqueue '%s' handler to IRQ:%d/%d\n",
vtballoon_dprintf(sc, VTBALLOON_ERROR, "cannot setup virtqueue interrupt:%d (error:%d)\n", i, error);
vtballoon_dprintf(sc, VTBALLOON_ERROR, "cannot create balloon kthread (error:%d)\n", error);