Index: dwarf2read.c
===================================================================
RCS file: /cvs/src/src/gdb/dwarf2read.c,v
retrieving revision 1.550
diff -d -u -r1.550 dwarf2read.c
--- dwarf2read.c	12 Jul 2011 20:59:03 -0000	1.550
+++ dwarf2read.c	12 Jul 2011 22:18:49 -0000
@@ -3417,6 +3417,7 @@
   struct objfile *objfile = (struct objfile *) info;
   struct dwarf2_per_cu_data *this_cu;
 
+  QUIT;
   this_cu = &entry->per_cu;
 
   gdb_assert (dwarf2_per_objfile->types.readin);
@@ -3500,6 +3501,7 @@
     {
       struct dwarf2_per_cu_data *this_cu;
 
+      QUIT;
       this_cu = dwarf2_find_comp_unit (info_ptr
 				       - dwarf2_per_objfile->info.buffer,
 				       objfile);
Index: psymtab.c
===================================================================
RCS file: /cvs/src/src/gdb/psymtab.c,v
retrieving revision 1.30
diff -d -u -r1.30 psymtab.c
--- psymtab.c	10 Jun 2011 21:48:04 -0000	1.30
+++ psymtab.c	12 Jul 2011 22:18:49 -0000
@@ -1093,6 +1093,7 @@
       if (ps->readin)
 	continue;
 
+      QUIT;
       fullname = psymtab_to_fullname (ps);
       (*fun) (ps->filename, fullname, data);
     }