hg: jdk/submit: Merge

[zgu at redhat.com]

Changeset: ffa9e9ae3bd4
Author:    zgu
Date:      2018-03-12 12:28 -0400
URL:       http://hg.openjdk.java.net/jdk/submit/rev/ffa9e9ae3bd4

Merge

! src/hotspot/os/linux/os_linux.cpp
! src/hotspot/os/windows/os_windows.cpp
- src/hotspot/share/gc/parallel/cardTableExtension.cpp
- src/hotspot/share/gc/parallel/cardTableExtension.hpp
- src/hotspot/share/gc/shared/cardTableModRefBSForCTRS.cpp
- src/hotspot/share/memory/universe_ext.cpp
! src/hotspot/share/runtime/os.cpp
! src/hotspot/share/runtime/os.hpp
! src/hotspot/share/services/virtualMemoryTracker.cpp
! test/hotspot/gtest/runtime/test_threadstack_tracking.cpp