Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8135018

AARCH64: Missing memory barriers for CMS collector

    XMLWordPrintable

Details

    • Bug
    • Status: Resolved
    • P4
    • Resolution: Fixed
    • None
    • 9
    • hotspot
    • b89
    • aarch64

    Backports

      Description

        While we have StoreStore barriers to keep card table updates in the right place in C2, we do not have them in C1 or in the interpreter. This is a window in which concurrent marking the old generation may see a null pointer instead of a real object pointer and miss marking an object.

        Attachments

          Issue Links

            Activity

              People

                aph Andrew Haley
                aph Andrew Haley
                Votes:
                0 Vote for this issue
                Watchers:
                3 Start watching this issue

                Dates

                  Created:
                  Updated:
                  Resolved: