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  1. JDK
  2. JDK-8223762

Shenandoah: overflows in calculations involving heap capacity

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    • gc
    • b21

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        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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            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8223960 Shenandoah: overflows in calculations involving heap capacity

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8228950 Shenandoah: overflows in calculations involving heap capacity

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

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                shade Aleksey Shipilev
                shade Aleksey Shipilev
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