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  1. JDK
  2. JDK-8255991

Shenandoah: Apply 'weak' LRB on cmpxchg and xchg

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Details

    • Bug
    • Status: Resolved
    • P3
    • Resolution: Fixed
    • 15, 16
    • 16
    • hotspot
    • gc
    • b24
    • generic
    • generic

    Description

      It is possible to access a Reference's referent by using various cmpxchg and xchg intrinsics. When that happens, we need to apply the weak LRB to prevent resurrection.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-8269897 Shenandoah: Resolve UNKNOWN access strength, where possible

          • P2 - Crashes, loss of data, severe memory leak.
          • Resolved

          Enhancement - null JDK-8254315 Shenandoah: Concurrent weak reference processing

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

          Commit Commit openjdk/jdk/d99e1f6c

          Review Review openjdk/jdk/1098

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              rkennke Roman Kennke
              rkennke Roman Kennke
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              Dates

                Created:
                Updated:
                Resolved: