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  1. JDK
  2. JDK-8228490

Shenandoah: Shenandoah concurrent root evacuation may race against OopStorage::release()

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    • Subcomponent:
      gc
    • Resolved In Build:
      b08

      Description

      Shenandoah evacuates OopStorage backed roots in concurrent phase, that may race against OopStorage::release().

      During concurrent evacuating OopStorage backed roots, other threads may call OopStorage::release() to release handle, for example:

      GC worker: load oop from handle ----- evacuate oop ------------------ store oop --
      Mutator: -------------------------------- null handle --- release handle ------------------
       

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              Assignee:
              zgu Zhengyu Gu
              Reporter:
              zgu Zhengyu Gu
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