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  1. JDK
  2. JDK-8228649

[PPC64] SA reads wrong slots from interpreter frames

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    • Subcomponent:
      svc
    • Resolved In Build:
      b09
    • CPU:
      ppc

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        Description

        The jtreg test "serviceability/sa/sadebugd/DebugdConnectTest.java" fails with "AssertionFailure: result must >= than stack pointer".
        The Java code doesn't read the right slots for the interpreter frame's monitors.

        Steps to fix it:
        - Make frame layout consistent between dbg and product build. Can be done by removing additional "reserved" slot which only exists in dbg builds. We can live without it.
        - Implement offsets accordingly in PPC64Frame.java.
        - As additonal improvement, initialize all relevant frame slots in generate_fixed_frame. Tools may access them before the interpreter writes useful content to them.

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                • Assignee:
                  mdoerr Martin Doerr
                  Reporter:
                  mdoerr Martin Doerr
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                  • Created:
                    Updated:
                    Resolved: