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  1. JDK
  2. JDK-8223762

Shenandoah: overflows in calculations involving heap capacity

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    • Subcomponent:
      gc
    • Resolved In Build:
      b21

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        Description

        Heap capacity is in size_t. Which means expressions like this are subject to overflow:

          size_t min_threshold = ShenandoahMinFreeThreshold * heap->max_capacity() / 100;

        Consider the x86_32 case with max_capacity = 1G. ShenandoahMinFreeThreshold >= 5 overflows it.

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                • Assignee:
                  shade Aleksey Shipilev
                  Reporter:
                  shade Aleksey Shipilev
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