Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8303153

Native interpreter frame missing mirror

    XMLWordPrintable

Details

    • Bug
    • Status: Resolved
    • P3
    • Resolution: Fixed
    • 21
    • 21
    • hotspot
    • b22
    • aarch64
    • linux

    Description

      While debugging JDK-8302350, it was found that an interpreter frame had an InstanceKlass* in the mirror_oop slot, where there should have been an oop of type java/lang/Class. That is, there should have been the mirror oop for the method holder, not the direct InstanceKlass*. How it ended up there is not clear, but since there is actually two InstanceKlass*es in that frame, it suggests that there have been recent changes to the interpreter frame layout, where there is now something called "extended_sp" also being stored? The extended_sp slot also has an (the same) InstanceKlass*.

      Attachments

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-8302350 JfrThreadSampler failed with "assert((is_native() && bci == 0) || (!is_native() && 0 <= bci && bci < code_size())) failed: illegal bci: 0 for non-native method"

          • P5 - Cosmetic problem like misspelt words or misaligned text.
          • Open

          Enhancement - null JDK-8288971 AArch64: Clean up stack and register handling in interpreter

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

          Enhancement - null JDK-8154580 Save mirror in interpreter frame to enable cleanups of CLDClosure

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

          Commit Commit openjdk/jdk/5a259d87

          Review Review openjdk/jdk/13794

          Activity

            People

              fbredberg Fredrik Bredberg
              mgronlun Markus Grönlund
              Votes:
              0 Vote for this issue
              Watchers:
              12 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: