kmem_hash_walk_t
kmem_hash_walk_t *kmhw;
kmhw = mdb_zalloc(sizeof (kmem_hash_walk_t), UM_SLEEP);
mdb_free(kmhw, sizeof (kmem_hash_walk_t));
kmem_hash_walk_t *kmhw = wsp->walk_data;
kmem_hash_walk_t *kmhw = wsp->walk_data;
mdb_free(kmhw, sizeof (kmem_hash_walk_t));