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[GC] Backport 8164948: Initializing stores of HeapRegions are not ordered with regards to their use in G1ConcurrentMark #155

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tanghaoth90 opened this issue Dec 15, 2020 · 0 comments
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[GC] Backport 8164948: Initializing stores of HeapRegions are not ordered with regards to their use in G1ConcurrentMark #155

tanghaoth90 opened this issue Dec 15, 2020 · 0 comments

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@tanghaoth90
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tanghaoth90 commented Dec 15, 2020 •
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Description
Add a storestore barrier before publishing newly initialized
HeapRegion instances, and place a loadload barrier before use of
members.

Steps to Reproduce
see https://bugs.openjdk.java.net/browse/JDK-8164948

Expected behavior
pass G1 tests

JDK version
N/A

Execution environment

  • OS and version:
  • CPU model:
  • Number of CPU cores:
  • Size of physical memory:
  • Inside Linux container?
    • Linux container name (docker, pouch, etc):
    • Linux container version:
tanghaoth90 pushed a commit to tanghaoth90/dragonwell8_hotspot that referenced this issue Dec 15, 2020
[GC] Backport 8164948: Initializing stores of HeapRegions are not ord…
14e58df 
…ered with regards to their use in G1ConcurrentMark

Summary: Add a storestore barrier before publishing newly initialized
HeapRegion instances, and place a loadload barrier before use of
members. (http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/cd2c49a02a4c)

Test Plan: hotspot/test/gc/g1

Reviewed-by: linade, mmyxym

Issue: dragonwell-project/dragonwell8#155
@tanghaoth90 tanghaoth90 mentioned this issue Dec 15, 2020
Merged
tanghaoth90 pushed a commit to dragonwell-project/dragonwell8_hotspot that referenced this issue Dec 15, 2020
@tanghaoth90
[GC] Backport 8164948: Initializing stores of HeapRegions are not ord…
a967f19 
…ered with regards to their use in G1ConcurrentMark

Summary: Add a storestore barrier before publishing newly initialized
HeapRegion instances, and place a loadload barrier before use of
members. (http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/cd2c49a02a4c)

Test Plan: hotspot/test/gc/g1

Reviewed-by: linade, mmyxym

Issue: dragonwell-project/dragonwell8#155
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