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  1. JDK
  2. JDK-8048112

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

    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 8u40, 9
    • Fix Version/s: 9
    • Component/s: hotspot
    • Subcomponent:
      gc
    • Resolved In Build:
      b26

      Backports

        Description

        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

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                • Assignee:
                  tschatzl Thomas Schatzl
                  Reporter:
                  tschatzl Thomas Schatzl
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                  • Created:
                    Updated:
                    Resolved: