Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8258471

"search codecache" clhsdb command does not work

    XMLWordPrintable

Details

    • b03

    Backports

      Description

        `search codecache` command does not work as following:

        ```
        hsdb> search codecache 0x7fedbd0aec90
        java.lang.RuntimeException: Unable to deduce type of CodeBlob from address 0x00007fedbc85e810 (expected type nmethod, RuntimeStub, SafepointBlob, DeoptimizationBlob, or ExceptionBlob)
                at jdk.hotspot.agent/sun.jvm.hotspot.code.CodeCache.createCodeBlobWrapper(CodeCache.java:177)
                at jdk.hotspot.agent/sun.jvm.hotspot.memory.CodeHeap.iterate(CodeHeap.java:111)
                at jdk.hotspot.agent/sun.jvm.hotspot.code.CodeCache.iterate(CodeCache.java:185)
                at jdk.hotspot.agent/sun.jvm.hotspot.CommandProcessor$40.doit(CommandProcessor.java:1535)
                at jdk.hotspot.agent/sun.jvm.hotspot.CommandProcessor.executeCommand(CommandProcessor.java:2051)
                at jdk.hotspot.agent/sun.jvm.hotspot.CommandProcessor.executeCommand(CommandProcessor.java:2021)
                at jdk.hotspot.agent/sun.jvm.hotspot.CommandProcessor.run(CommandProcessor.java:1901)
                at jdk.hotspot.agent/sun.jvm.hotspot.CLHSDB.run(CLHSDB.java:99)
                at jdk.hotspot.agent/sun.jvm.hotspot.CLHSDB.main(CLHSDB.java:40)
                at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.runCLHSDB(SALauncher.java:280)
                at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.main(SALauncher.java:483)
        ```

        I checked the Object which points 0x7fedbd0aec90, it was `VtableBlob`. It has been introduced in JDK-8199406, but it did not change SA code.

        SA should support `VtableBlob`.

        Attachments

          Issue Links

            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-8258739 "search codecache" clhsdb command does not work

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • 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-8259497 "search codecache" clhsdb command does not work

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • 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-8280133 "search codecache" clhsdb command does not work

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • 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-8287361 "search codecache" clhsdb command does not work

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • 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-8287364 "search codecache" clhsdb command does not work

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

            Commit Commit openjdk/jdk13u-dev/73ac61ff

            Commit Commit openjdk/jdk15u-dev/b62d97d4

            Commit Commit openjdk/jdk16u/bf90c475

            Commit Commit openjdk/jdk/1e03ca13

            Review Review openjdk/jdk13u-dev/351

            Review Review openjdk/jdk15u-dev/212

            Review Review openjdk/jdk16u/3

            Review Review openjdk/jdk/1800

            Activity

              People

                ysuenaga Yasumasa Suenaga
                ysuenaga Yasumasa Suenaga
                Votes:
                0 Vote for this issue
                Watchers:
                5 Start watching this issue

                Dates

                  Created:
                  Updated:
                  Resolved: