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  1. JDK
  2. JDK-8234399

Shenandoah: Cleanup native load barrier

    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 15
    • Fix Version/s: 15
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
      gc
    • Resolved In Build:
      b08

      Description

      Shenandoah native load barrier has code to detect if load is issued by non-Java thread, if so, it returns old oop if it is unmarked.

      This is really a hack that tries to address the issue: weak processor can trigger load barrier on GC path (JDK-8231999).

      Since, the problem was correctly fix by JDK-8232747. We should remove this hack.

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              • Assignee:
                zgu Zhengyu Gu
                Reporter:
                zgu Zhengyu Gu
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                • Created:
                  Updated:
                  Resolved: