JDK-8061817 : Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 8,9
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2014-10-22
  • Updated: 2017-08-14
  • Resolved: 2014-10-30
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8u40Fixed 9 b40Fixed
Related Reports
Relates :  
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) {
      bci = code->osr_entry_bci() + 1;

After incrementing the bci 'lookup_osr_nmethod_for()' returns NULL and we exit the loop.
Attached test to trigger bug (DeoptimizeMultipleOSRTest.java).