hg: hsx/hotspot-rt/hotspot: 2 new changesets

[stefan.karlsson at oracle.com]

Changeset: 4c84d351cca9
Author:    stefank
Date:      2013-08-16 13:22 +0200
URL:       http://hg.openjdk.java.net/hsx/hotspot-rt/hotspot/rev/4c84d351cca9

8007074: SIGSEGV at ParMarkBitMap::verify_clear()
Summary: Replace the broken large pages implementation on Linux. New flag: -XX:+UseTransparentHugePages - Linux specific flag to turn on transparent huge page hinting with madvise(..., MAP_HUGETLB). Changed behavior: -XX:+UseLargePages - tries to use -XX:+UseTransparentHugePages before trying other large pages implementations (on Linux). Changed behavior: -XX:+UseHugeTLBFS - Use upfront allocation of Large Pages instead of using the broken implementation to dynamically committing large pages. Changed behavior: -XX:LargePageSizeInBytes - Turned off the ability to use this flag on Linux and provides warning to user if set to a value different than the OS chosen large page size. Changed behavior: Setting no large page size - Now defaults to use -XX:UseTransparentHugePages if the OS supports it. Previously, -XX:+UseHugeTLBFS was chosen if the OS was configured to use large pages.
Reviewed-by: tschatzl, dcubed, brutisso

! src/os/bsd/vm/os_bsd.cpp
! src/os/linux/vm/globals_linux.hpp
! src/os/linux/vm/os_linux.cpp
! src/os/linux/vm/os_linux.hpp
! src/os/solaris/vm/os_solaris.cpp
! src/os/windows/vm/os_windows.cpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp
! src/share/vm/memory/collectorPolicy.cpp
! src/share/vm/memory/genCollectedHeap.cpp
! src/share/vm/memory/metaspace.cpp
! src/share/vm/memory/universe.cpp
! src/share/vm/memory/universe.hpp
! src/share/vm/prims/jni.cpp
! src/share/vm/runtime/globals.hpp
! src/share/vm/runtime/os.hpp
! src/share/vm/runtime/virtualspace.cpp
! src/share/vm/runtime/virtualspace.hpp
! src/share/vm/services/memTracker.hpp
! src/share/vm/utilities/globalDefinitions.hpp

Changeset: 21ffbaa691b5
Author:    stefank
Date:      2013-08-26 07:01 -0700
URL:       http://hg.openjdk.java.net/hsx/hotspot-rt/hotspot/rev/21ffbaa691b5

Merge

! src/share/vm/prims/jni.cpp