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  1. JDK
  2. JDK-6753547

NUMA allocator: Invalid chunk size computation during adaptive resizing

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P3
    • Resolution: Fixed
    • Affects Version/s: hs14
    • Fix Version/s: hs14
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
      gc
    • Resolved In Build:
      b06
    • CPU:
      generic
    • OS:
      generic

      Backports

        Description

        The per-lgrp chuck size can be incorrectly computed because of the non-associativity of the floating point operations:

        Expression z = x1 * y / x2 with x1 <= x2 can yield z > y, which applied to chunk size computation can result in a chunk size bigger that available.

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                • Assignee:
                  iveresov Igor Veresov
                  Reporter:
                  iveresov Igor Veresov
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