diff --git a/Changelog b/Changelog
index 61bb7994..e0affe25 100644
--- a/Changelog
+++ b/Changelog
@@ -1,8 +1,15 @@
 Changelog. A lot less detailed than usual, at least for past
 history. 
 
+2006/11/28: Merged the mods for descriptors of large index spaces to
+	    avoid having the GLOB_TO_LOC array. Took the chance to
+	    reorganize the descriptor build routines and define some
+	    access functions for decsriptor features and entries, so
+	    as not to use the descriptor components directly. Tested
+	    with AS, 2- and 3- level Post smoothers. 
+
 2006/11/09: The allocatable version works, but under gcc42 there is a
-	    strange problem when using -fbounds-check. Be careful!
+	    compiler bug when using -fbounds-check. 
 
 2006/11/08: Merged the allocatable version; hope everything works!
 
diff --git a/src/modules/psb_spmat_type.f90 b/src/modules/psb_spmat_type.f90
index 5389b0bc..d1927f26 100644
--- a/src/modules/psb_spmat_type.f90
+++ b/src/modules/psb_spmat_type.f90
@@ -1295,6 +1295,11 @@ contains
         return
       endif
       irw = iaux
+      if (irw > a%m) then 
+        write(0,*) 'SPINFO: Accessing out of bounds? ',irw,a%m
+        ires = 0
+        return
+      endif
       if (toupper(a%fida) == 'CSR') then 
         ires = a%ia2(irw+1)-a%ia2(irw)
       else if ((toupper(a%fida) == 'COO').or.(toupper(a%fida) == 'COI')) then 
diff --git a/src/tools/psb_dcdovrbld.f90 b/src/tools/psb_dcdovrbld.f90
index 1494ee96..d9b6d827 100644
--- a/src/tools/psb_dcdovrbld.f90
+++ b/src/tools/psb_dcdovrbld.f90
@@ -217,8 +217,7 @@ Subroutine psb_dcdovrbld(n_ovr,desc_p,desc_a,a,&
     idxs       = 0
     counter      = 1
     counter_t    = 1
-    
-    
+
     t1 = mpi_wtime()
     Do While (halo(counter) /= -1)
       tot_elem=0
@@ -435,6 +434,13 @@ Subroutine psb_dcdovrbld(n_ovr,desc_p,desc_a,a,&
         call psb_errpush(info,name,a_err=ch_err)
         goto 9999
       end if
+      if (.false.) then 
+        open(70+me,position='append')
+        write(70+me,*) ' Workr on iteration ',i_ovr
+        write(70+me,'(8(i7,1x))') workr(1:iszr)
+        call flush(70+me)
+        close(70+me)
+      end if
 
       if (debug) write(0,*) 'ISZR :',iszr
 
diff --git a/src/tools/psb_dsphalo.f90 b/src/tools/psb_dsphalo.f90
index eb77ff0f..1ea3b455 100644
--- a/src/tools/psb_dsphalo.f90
+++ b/src/tools/psb_dsphalo.f90
@@ -295,6 +295,7 @@ Subroutine psb_dsphalo(a,desc_a,blk,info,rwcnv,clcnv,outfmt)
   Enddo
   blk%fida='COO'
   blk%infoa(psb_nnz_)=l1
+
   if (debugprt) then 
     open(50+me)
     call psb_csprt(50+me,blk,head='% SPHALO border .')