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  1. JDK
  2. JDK-8223472

volatile long field corruption on x86_32

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    • b22
    • x86

    Backports

      Description

        The simple application (attached) shows broken volatile long field.
        Reproduced on 32-bit x86, interpreter VM mode only.

        The issue came with JDK-8202201 update: MO_RELAXED atomic access_store_at parmeter was lost, it breaks the atomicity.

        jcstress shows it is not the only problem for x86_32: jcstress.jar -t IntLongTest fails massively (in compiler mode) - see JDK-8223557 for this issue.

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            backported by

            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-8224189 volatile long field corruption on x86_32

            • P3 - Major loss of function.
            • 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-8228953 volatile long field corruption on x86_32

            • P3 - Major loss of function.
            • Resolved
            relates to

            Bug - A problem which impairs or prevents the functions of the product. JDK-8202201 All oop stores in the x64 interpreter are treated as volatile when using G1

            • P3 - Major loss of function.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8223557 jcstress fails on 32-bit x86

            • P3 - Major loss of function.
            • Closed

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                bulasevich Boris Ulasevich
                bulasevich Boris Ulasevich
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                  Created:
                  Updated:
                  Resolved: