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  1. JDK
  2. JDK-8061817

Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 8, 9
    • Fix Version/s: 9
    • Component/s: hotspot
    • Environment:

      WhiteBox API

    • Subcomponent:
    • Resolved In Build:
      b40

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        Description

        Invoking Whitebox.deoptimizeMethod() on a method that has multiple OSR compiled versions only deoptimizes one OSR method.

        The problem is in 'WB_DeoptimizeMethod' in whitebox.cpp:
           
            int bci = InvocationEntryBci;
            while ((code = mh->lookup_osr_nmethod_for(bci, CompLevel_none, false)) != NULL) {
              code->mark_for_deoptimization();
              ++result;
              bci = code->osr_entry_bci() + 1;
            }

        After incrementing the bci 'lookup_osr_nmethod_for()' returns NULL and we exit the loop.

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                • Assignee:
                  thartmann Tobias Hartmann
                  Reporter:
                  thartmann Tobias Hartmann
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                    Updated:
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