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  1. JDK
  2. JDK-8243339

AArch64: Obsolete UseBarriersForVolatile option

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    • Subcomponent:
    • Resolved In Build:
      b25
    • CPU:
      aarch64

      Description

      Running application with option "-XX:+UseBarriersForVolatile" might have memory consistent issue like that mentioned in JDK-8241137. Since "ldar/stlr" can work well stably, we'd better simply things by removing this flag and the alternative implementation for volatile memory access.

      More detail discussion could be found from the two threads:
      http://mail.openjdk.java.net/pipermail/aarch64-port-dev/2020-March/008679.html
      http://mail.openjdk.java.net/pipermail/aarch64-port-dev/2020-April/008706.html
       

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          csr for

          CSR - null JDK-8243456 AArch64: Obsolete UseBarriersForVolatile option

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

          Bug - A problem which impairs or prevents the functions of the product. JDK-8241137 AArch64: Volatile accesses are not sequentially consistent with VM option "-XX:+UseBarriersForVolatile"

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

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              Assignee:
              xgong Xiaohong Gong
              Reporter:
              xgong Xiaohong Gong
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                Updated:
                Resolved: