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Type: Enhancement
Resolution: Fixed
Priority: P4
Fix Version/s: 9
Affects Version/s: 9
Component/s: hotspot
Labels:

Subcomponent:
gc
Resolved In Build:
b24

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-8056642	emb-9	Unassigned	P4	Resolved	Fixed	b24
JDK-8063560	8u45	Mikael Gerdin	P4	Resolved	Fixed	b01
JDK-8049563	8u40	Stefan Karlsson	P4	Resolved	Fixed	b02
JDK-8070840	emb-8u47	Mikael Gerdin	P4	Resolved	Fixed	team

When G1 is modified to unload classes without doing full collections the old HeapRegions
can contain unparseable objects.
This makes ContiguousSpace unsuitable as a base class for HeapRegion since it assumes that all objects below _top are parseable.

Modify G1OffsetTableContigSpace to implement allocation with a separate _top and reimplement some Space pure virtuals to make object iteration work as expected.

backported by

JDK-8049563 G1 HeapRegions can no longer be ContiguousSpaces

Resolved

JDK-8056642 G1 HeapRegions can no longer be ContiguousSpaces

Resolved

JDK-8063560 G1 HeapRegions can no longer be ContiguousSpaces

Resolved

JDK-8070840 G1 HeapRegions can no longer be ContiguousSpaces

Resolved

relates to

JDK-8047819 G1 HeapRegionDCTOC does not need to inherit ContiguousSpaceDCTOC

Resolved

JDK-8047820 G1 Block offset table does not need to support generic Space classes

Resolved

JDK-8047821 G1 Does not use the save_marks functionality as intended

Resolved

JDK-8048214 Linker error when compiling G1SATBCardTableModRefBS after include order changes

Resolved

JDK-8048183 Unify allocation code in ContiguousSpace and G1OffsetTableContigSpace

Open

(4 relates to)

Assignee:: Mikael Gerdin (Inactive)

Reporter:: Mikael Gerdin (Inactive)

Votes:: 0 Vote for this issue

Watchers:: 2 Start watching this issue

Created:: 2014-06-23 06:46

Updated:: 2015-01-21 09:45

Resolved:: 2014-06-26 05:49

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