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  1. JDK
  2. JDK-8257701

Shenandoah: objArrayKlass metadata is not marked with chunked arrays

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    • Subcomponent:
      gc
    • Resolved In Build:
      b28

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        Description

        Usually, marking code calls Klass::oop_oop_iterate(), where it marks object klass metadata.

        Shenandoah introduced chunked array processing a while ago to breakup marking a large array into chunks, then call oop_iterate_range() to mark individual chunk. Unfortunately, oop_iterate_range() does not iterate over object klass metadata, which it should *not*, so we end up missing the mark of object array klass metadata.

        Thanks for [~lmao] reporting the bug.

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                • Assignee:
                  zgu Zhengyu Gu
                  Reporter:
                  zgu Zhengyu Gu
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