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diff src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp @ 237:1fdb98a17101

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6716785: implicit null checks not triggering with CompressedOops Summary: allocate alignment-sized page(s) below java heap so that memory accesses at heap_base+1page give signal and cause an implicit null check Reviewed-by: kvn, jmasa, phh, jcoomes
author coleenp
date Sat, 19 Jul 2008 17:38:22 -0400
parents d1605aabd0a1
children 850fdf70db2b
line wrap: on
line diff
--- a/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp	Fri Jul 11 01:14:44 2008 -0700
+++ b/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp	Sat Jul 19 17:38:22 2008 -0400
@@ -108,8 +108,8 @@
   // size than is needed or wanted for the perm gen.  Use the "compound
   // alignment" ReservedSpace ctor to avoid having to use the same page size for
   // all gens.
-  ReservedSpace heap_rs(pg_max_size, pg_align, og_max_size + yg_max_size,
-                        og_align);
+  ReservedHeapSpace heap_rs(pg_max_size, pg_align, og_max_size + yg_max_size,
+                            og_align);
   os::trace_page_sizes("ps perm", pg_min_size, pg_max_size, pg_page_sz,
                        heap_rs.base(), pg_max_size);
   os::trace_page_sizes("ps main", og_min_size + yg_min_size,