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  1. JDK
  2. JDK-8202116

(fc) FileChannel.map should ensure mapped region is backed by disk space

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Details

    • Bug
    • Resolution: Won't Fix
    • P2
    • None
    • 9, 10, 11
    • core-libs
    • 9
    • linux

    Backports

      Description

        JDK-8168628 needs to be re-implemented so that RandomAccessFile.setLength does does allocate disk space and FileChannel.map does the correct thing to ensure that the region to be mapped is backed by disk space.

        More discussion on this topic here:
        http://mail.openjdk.java.net/pipermail/nio-dev/2018-April/005008.html

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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-8202196 (fc) FileChannel.map should ensure mapped region is backed by disk space

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

            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-8168628 (fc) SIGBUS when extending file size to map it

            • P3 - Major loss of function.
            • Resolved

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                alanb Alan Bateman
                alanb Alan Bateman
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                  Created:
                  Updated:
                  Resolved: