git: openjdk/jdk21u-dev: master: 8315923: pretouch_memory by atomic-add-0 fragments huge pages unexpectedly

[Aleksey Shipilev]

Changeset: cb40bc22
Branch: master
Author:    Liming Liu <lliu at openjdk.org>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2024-07-10 12:00:23 +0000
URL:       https://git.openjdk.org/jdk21u-dev/commit/cb40bc225c4c4c8c9d95bdd2e60cef94c56117cf

8315923: pretouch_memory by atomic-add-0 fragments huge pages unexpectedly
8324781: runtime/Thread/TestAlwaysPreTouchStacks.java failed with Expected a higher ratio between stack committed and reserved
8325218: gc/parallel/TestAlwaysPreTouchBehavior.java fails

Reviewed-by: shade
Backport-of: a65a89522d2f24b1767e1c74f6689a22ea32ca6a

! src/hotspot/os/aix/os_aix.cpp
! src/hotspot/os/bsd/os_bsd.cpp
! src/hotspot/os/linux/globals_linux.hpp
! src/hotspot/os/linux/os_linux.cpp
! src/hotspot/os/windows/os_windows.cpp
! src/hotspot/share/gc/shared/pretouchTask.cpp
! src/hotspot/share/runtime/os.cpp
! src/hotspot/share/runtime/os.hpp
! test/hotspot/gtest/runtime/test_os_linux.cpp
! test/hotspot/jtreg/gc/parallel/TestAlwaysPreTouchBehavior.java
! test/hotspot/jtreg/runtime/Thread/TestAlwaysPreTouchStacks.java