Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-6782457

CMS: Livelock in CompactibleFreeListSpace::block_size().

    XMLWordPrintable

Details

    • Bug
    • Resolution: Fixed
    • P2
    • hs14
    • 7
    • hotspot
    • None
    • gc
    • b01
    • b09
    • generic
    • generic

    Backports

      Description

        Running the test Compact_InternedStrings I observe a live lock when running
        with CMS where

        Thread 26 has done an allocation out of the perm gen and is trying
        to reacquire the heap lock and is blocked. The perm gen object has
        not been initialized.

        Thread 25 has requested a collection (VM_GenCollectForPermanentAllocation) and is
        executing in VMThread::execute() and has grabbed the heap lock as
        part of the doit_prologue().

        Thread 16 is the VM thread and it is trying to do a compaction.
        It is in the loop in CompactibleFreeListSpace::block_size() waiting
        for the block to be initialized (never will be).

        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-2172848 CMS: Livelock in CompactibleFreeListSpace::block_size().

            • P3 - Major loss of function.
            • 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-2170537 CMS: Livelock in CompactibleFreeListSpace::block_size().

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed

            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-2170538 CMS: Livelock in CompactibleFreeListSpace::block_size().

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed

            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-2170539 CMS: Livelock in CompactibleFreeListSpace::block_size().

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed

            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-2172407 CMS: Livelock in CompactibleFreeListSpace::block_size().

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed
            relates to

            Bug - A problem which impairs or prevents the functions of the product. JDK-6736295 SIGSEGV in product jvm, assertion "these are the only valid states during a mark sweep" in fastdebug

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-6539517 CR 6186200 should be extended to perm gen allocation to prevent spurious OOM's from perm gen

            • P3 - Major loss of function.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-6789220 CMS: intermittent timeout running nsk/regression/b4796926

            • P3 - Major loss of function.
            • Closed

            Enhancement - null JDK-6186200 RFE: Stall allocation requests while heap is full and GC locker is held

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Activity

              People

                ysr Y. Ramakrishna
                jmasa Jon Masamitsu (Inactive)
                Votes:
                0 Vote for this issue
                Watchers:
                2 Start watching this issue

                Dates

                  Created:
                  Updated:
                  Resolved:
                  Imported:
                  Indexed: