Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8150002

Check for the validity of oop before printing it in verify_remembered_set

    XMLWordPrintable

Details

    • gc
    • b110

    Backports

      Description

        The following change should be made in verify_remembered_set() in src/share/vm/gc/g1/heapRegion.cpp to protect against the crashes that can occur if the object (obj) in the 'to' region which is being printed here has been overwritten and is no longer a valid oop:

        739 _containing_obj->print_on(log.info_stream());
        740 log.info("points to obj " PTR_FORMAT " in region " HR_FORMAT, p2i(obj), HR_FORMAT_PARAMS(to));
        + if (obj->is_oop()) {
        741 obj->print_on(log.info_stream());
        + }
        742 log.info("Obj head CTE = %d, field CTE = %d.", cv_obj, cv_field);

        Attachments

          Issue Links

            Activity

              People

                shshahma Shafi Ahmad (Inactive)
                poonam Poonam Bajaj Parhar
                Votes:
                0 Vote for this issue
                Watchers:
                2 Start watching this issue

                Dates

                  Created:
                  Updated:
                  Resolved: