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  1. Lustre
  2. LU-268

Possible bug in userspace block handling when enabling MPP

Details

    • Bug
    • Resolution: Duplicate
    • Minor
    • Lustre 1.8.6
    • Lustre 2.0.0, Lustre 2.1.0, Lustre 1.8.6
    • None
    • 3
    • 24,209
    • 10237

    Description

      When choosing a block for multiple mount protection near the end of the file system it can fail. There is a patch that changes mmp_blk to (long long)mmp_blk which should prevent the MMP block from overwriting block filesystem data. A patch has been provided but it has not been inspected from bug24209 mmp_blk64.patch. We would like this patch to be evaluated.

      We are concerned if we have current customers who have full filesystems and enable MPP they could be putting data at risk.

      Attachments

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. LU-264 MMP update

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

          Activity

            [LU-268] Possible bug in userspace block handling when enabling MPP
            pjones Peter Jones made changes -
            Affects Version/s New: Lustre 1.8.6 [ 10022 ]
            Affects Version/s Original: Lustre 1.8.x [ 10010 ]
            pjones Peter Jones made changes -
            Link New: This issue duplicates LU-264 [ LU-264 ]
            johann Johann Lombardi (Inactive) made changes -
            Fix Version/s New: Lustre 1.8.6 [ 10022 ]
            Resolution New: Duplicate [ 3 ]
            Status Original: Open [ 1 ] New: Resolved [ 5 ]
            adilger Andreas Dilger made changes -
            Assignee Original: Robert Read [ rread ] New: Johann Lombardi [ johann ]
            jsalinas John Salinas (Inactive) created issue -

            People

              johann Johann Lombardi (Inactive)
              jsalinas John Salinas (Inactive)
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              Dates

                Created:
                Updated:
                Resolved: