BHASH0
bmwrite(dev, BHASH0, bp->hash_table_mask[3]); /* bits 63 - 48 */
bmwrite(dev, BHASH0, bp->hash_table_mask[3]); /* bits 63 - 48 */
bmwrite(dev, BHASH0, 0xffff);
bmwrite(dev, BHASH0, hash_table[0]);