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  1. Lustre
  2. LU-268

Possible bug in userspace block handling when enabling MPP

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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.

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          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

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

                Created:
                Updated:
                Resolved: