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  1. JDK
  2. JDK-8283555

G1: Concurrent mark accesses uninitialized BOT of closed archive regions

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    • gc
    • b16

    Backports

      Description

        runtime/cds/appcds/cacheObject/ArchivedIntegerCacheTest.java in the loom repo reproducably crashes with the following stack trace:

        V [libjvm.so+0x7231a4] oopDesc::size_given_klass(Klass*)+0x14
        V [libjvm.so+0xd8bd97] HeapRegion::block_size(HeapWordImpl* const*) const+0x377
        V [libjvm.so+0xdad177] G1BlockOffsetTablePart::block_start(void const*)+0x127
        V [libjvm.so+0xdd1693] G1CMObjArrayProcessor::process_slice(HeapWordImpl**)+0x333
        V [libjvm.so+0xdc88fc] void G1CMTask::process_grey_task_entry<true>(G1TaskQueueEntry)+0x2c
        V [libjvm.so+0xdc0dac] G1CMTask::drain_local_queue(bool) [clone .part.0]+0x8c
        V [libjvm.so+0xdc332b] G1CMTask::do_marking_step(double, bool, bool)+0x131b
        V [libjvm.so+0xdce88d] G1CMConcurrentMarkingTask::work(unsigned int)+0x17d
        V [libjvm.so+0x1befb01] WorkerThread::run()+0x81
        V [libjvm.so+0x1a98230] Thread::call_run()+0x100
        V [libjvm.so+0x17674b4] thread_native_entry(Thread*)+0x104

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            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-8283888 G1: Concurrent mark accesses uninitialized BOT of closed archive regions

            • P1 - Blocks development and/or testing work, production could not run.
            • Closed
            duplicates

            Bug - A problem which impairs or prevents the functions of the product. JDK-8283471 runtime/cds/appcds/cacheObject/ArchivedIntegerCacheTest.java triggers check_alignment assert in loom repo

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

            Enhancement - null JDK-8264908 Investigate adding BOT range check in G1BlockOffsetTablePart::block_at_or_preceding

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

            Enhancement - null JDK-8284995 G1: Do not mark through Closed Archive regions during concurrent mark

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

            Commit Commit openjdk/jdk18u/9f39b4bf

            Commit Commit openjdk/jdk/19f01ab7

            Review Review openjdk/jdk18u/54

            Review Review openjdk/jdk/7923

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                tschatzl Thomas Schatzl
                tschatzl Thomas Schatzl
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                Dates

                  Created:
                  Updated:
                  Resolved: