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Type: Enhancement
Resolution: Fixed
Priority: P4
Fix Version/s: 17
Affects Version/s: 17
Component/s: hotspot
Labels:
- gc-parallel
- gc-pending-review

Subcomponent:
gc
Resolved In Build:
b09
Verification:
Fix failed

MutableSpace is used by PSOldGen. It's end value is subject to concurrent reads and writes. It is read when doing an allocation, and written when expanding, and those operations can be concurrent.

is cloned by

JDK-8261212 [REDO] MutableSpace's end should be atomic

Open

relates to

JDK-8259271 gc/parallel/TestDynShrinkHeap.java still fails "assert(covered_region.contains(new_memregion)) failed: new region is not in covered_region"

Closed

JDK-8259776 Remove ParallelGC non-CAS oldgen allocation

Resolved

JDK-8259778 Merge MutableSpace and ImmutableSpace

Resolved

links to

Commit openjdk/jdk/1e0a1013

Review openjdk/jdk/2323

(1 links to)

Assignee:: Kim Barrett

Reporter:: Kim Barrett

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Created:: 2021-01-15 22:50

Updated:: 2025-01-16 11:21

Resolved:: 2021-02-04 23:24

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