1730 	umem_log_walk_t *ulw;  in umem_log_walk_init()  local
1748 	ulw = mdb_zalloc(sizeof (umem_log_walk_t), UM_SLEEP);  in umem_log_walk_init()
1749 	lhp = &ulw->ulw_lh;  in umem_log_walk_init()
1753 		mdb_free(ulw, sizeof (umem_log_walk_t));  in umem_log_walk_init()
1757 	ulw->ulw_size = lhp->lh_chunksize * lhp->lh_nchunks;  in umem_log_walk_init()
1758 	ulw->ulw_base = mdb_alloc(ulw->ulw_size, UM_SLEEP);  in umem_log_walk_init()
1761 	if (mdb_vread(ulw->ulw_base, ulw->ulw_size,  in umem_log_walk_init()
1764 		mdb_free(ulw->ulw_base, ulw->ulw_size);  in umem_log_walk_init()
1765 		mdb_free(ulw, sizeof (umem_log_walk_t));  in umem_log_walk_init()
1769 	ulw->ulw_sorted = mdb_alloc(maxndx * lhp->lh_nchunks *  in umem_log_walk_init()
1774 		    ((uintptr_t)ulw->ulw_base + i * lhp->lh_chunksize);  in umem_log_walk_init()
1778 			ulw->ulw_sorted[k++] = (umem_bufctl_audit_t *)chunk;  in umem_log_walk_init()
1783 	qsort(ulw->ulw_sorted, k, sizeof (umem_bufctl_audit_t *),  in umem_log_walk_init()
1786 	ulw->ulw_maxndx = k;  in umem_log_walk_init()
1787 	wsp->walk_data = ulw;  in umem_log_walk_init()
1795 	umem_log_walk_t *ulw = wsp->walk_data;  in umem_log_walk_step()  local
1798 	if (ulw->ulw_ndx == ulw->ulw_maxndx)  in umem_log_walk_step()
1801 	bcp = ulw->ulw_sorted[ulw->ulw_ndx++];  in umem_log_walk_step()
1803 	return (wsp->walk_callback((uintptr_t)bcp - (uintptr_t)ulw->ulw_base +  in umem_log_walk_step()
1804 	    (uintptr_t)ulw->ulw_lh.lh_base, bcp, wsp->walk_cbdata));  in umem_log_walk_step()
1810 	umem_log_walk_t *ulw = wsp->walk_data;  in umem_log_walk_fini()  local
1812 	mdb_free(ulw->ulw_base, ulw->ulw_size);  in umem_log_walk_fini()
1813 	mdb_free(ulw->ulw_sorted, ulw->ulw_maxndx *  in umem_log_walk_fini()
1815 	mdb_free(ulw, sizeof (umem_log_walk_t));  in umem_log_walk_fini()