hg: jdk7/hotspot-comp/hotspot: 6896084: VM does not reserve protected page below heap for compressed oops implicit null checks

[vladimir.kozlov at sun.com]

Changeset: f334aec453a1
Author:    kvn
Date:      2009-10-29 16:57 -0700
URL:       http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot/rev/f334aec453a1

6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
Summary: Set narrow_oop_base and narrow_oop_use_implicit_null_checks in Universe::preferred_heap_base().
Reviewed-by: twisti, jcoomes

! src/share/vm/memory/universe.cpp