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Type: Enhancement
Resolution: Fixed
Priority: P4
Fix Version/s: 9
Affects Version/s: 8u40, 9
Component/s: hotspot
Labels:
- gc-g1
- noreg-cleanup

Subcomponent:
gc
Resolved In Build:
b26

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-8056663	emb-9	Unassigned	P4	Resolved	Fixed	b26
JDK-8063379	8u45	Thomas Schatzl	P4	Resolved	Fixed	b01
JDK-8051708	8u40	Thomas Schatzl	P4	Resolved	Fixed	b02
JDK-8070938	emb-8u47	Thomas Schatzl	P4	Resolved	Fixed	team

When decommitting memory within the heap, it may be possible that the first region of the heap is decommitted as well, and not available for g1 full gc/compaction.

However the current implementation of G1 full GC hardcodes the first compaction space (ie. the area to compact into) as exactly this first region.

This constraintt needs to be relaxed to allow ~~JDK-8038423~~

backported by

JDK-8051708 G1 Full GC needs to support the case when the very first region is not available

Resolved

JDK-8056663 G1 Full GC needs to support the case when the very first region is not available

Resolved

JDK-8063379 G1 Full GC needs to support the case when the very first region is not available

Resolved

JDK-8070938 G1 Full GC needs to support the case when the very first region is not available

Resolved

blocks

JDK-8038423 G1: Decommit memory within the heap

Resolved

relates to

JDK-8049332 G1 full GC does not compact into humongous regions freed in the same collection

Closed

(1 relates to)

Assignee:: Thomas Schatzl
Reporter:: Thomas Schatzl
Votes:: 0 Vote for this issue
Watchers:: 2 Start watching this issue

Created:: 2014-06-25 07:31
Updated:: 2015-01-21 09:53
Resolved:: 2014-07-21 03:11

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