Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8191278

MappedByteBuffer bulk access memory failures are not handled gracefully

    XMLWordPrintable

Details

    • b03
    • Verified

    Backports

      Description

        There are 50+ instances of Unsafe.copyMemory
        and 20+ instances of Unsafe.copySwapMemoy in generated Direct*Buffer* code, these accesses are not guarded for graceful dealing as per current implementation or plan (JDK-4454115 , JDK-8154592), this CR is for tracking and handling these cases.

        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-8271479 MappedByteBuffer bulk access memory failures are not handled gracefully

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8226871 invalid use of incomplete type class MacroAssembler when building minimal after JDK-8191278

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8227068 [Graal] MappedByteBuffer bulk access memory failures are not handled gracefully

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

            Enhancement - null JDK-4454115 Need to deal gracefully with unsafe operations that access invalid memory (C2)

            • P3 - Major loss of function.
            • Resolved

            Enhancement - null JDK-8273440 Zero: Disable runtime/Unsafe/InternalErrorTest.java

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

            Enhancement - null JDK-8154592 Exceptions thrown from unsafe operations should be synchronous

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8246381 VM crashes with "Current BasicObjectLock* below than low_mark"

            • P3 - Major loss of function.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8229254 solaris_x64 build fails after JDK-8191278

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8202261 (fc) FileChannel.map and RandomAccessFile.setLength should not preallocate space

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8226878 zero crashes after JDK-8191278

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

            Enhancement - null JDK-8155982 CompareAndExchange/Swap should leverage MemoryAccess class

            • P3 - Major loss of function.
            • Closed
            links to

            Commit Commit openjdk/jdk13u-dev/40ab2a0b

            Review Review openjdk/jdk11u-dev/173

            Review Review openjdk/jdk13u-dev/239

            Review Review openjdk/jdk13u-dev/240

            Activity

              People

                jcm Jamsheed C M (Inactive)
                jcm Jamsheed C M (Inactive)
                Votes:
                0 Vote for this issue
                Watchers:
                15 Start watching this issue

                Dates

                  Created:
                  Updated:
                  Resolved: