pmcs_tbuf_t
pmcs_tbuf_t *tbuf_addr;
pmcs_tbuf_t tbuf;
if (MDB_RD(&tbuf, sizeof (pmcs_tbuf_t), (tbuf_addr + idx))
pmcs_tbuf_num_elems * sizeof (pmcs_tbuf_t));
pmcs_tbuf_t *pmcs_tbuf = NULL;
pmcs_tbuf_t *pmcs_tbuf_ptr;
sizeof (pmcs_tbuf_t), KM_SLEEP);