[systemd-bugs] [Bug 83266] New: LZ4 compressed core dumps are rejected by the lz4 command-line utility

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83266

          Priority: medium
            Bug ID: 83266
          Assignee: systemd-bugs at lists.freedesktop.org
           Summary: LZ4 compressed core dumps are rejected by the lz4
                    command-line utility
        QA Contact: systemd-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: evangelos at foutrelis.com
          Hardware: All
            Status: NEW
           Version: unspecified
         Component: general
           Product: systemd

This is the error given by the lz4 command-line utility when trying to
uncompress a core dump compressed with LZ4:

"Error 44 :Unrecognized header : file cannot be decoded".

Currently liblz4 doesn't seem to contain any facilities to generate proper .lz4
files. The solution to this might be the "Framing API" that is being worked on:

https://groups.google.com/forum/#!topic/lz4c/SEddCFAe5MY

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