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  1. Lustre
  2. LU-6007

FIEMAP fails xfstests's fiemap-tester

    Details

    • Type: Bug
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: Lustre 2.7.0
    • Fix Version/s: None
    • Labels:
    • Severity:
      3
    • Rank (Obsolete):
      16744

      Description

      Following resolution of bug LU-5933, I tried to run fiemap-tester from xfstests, and saw it fail. I don't know whether it's a Lustre or some bad assumption, but the same test works fine on ext4, and presumably all filesystem supported by the xfs test suite.

      xfstests is easy to get and install. See http://xfs.org/index.php/Getting_the_latest_source_code. fiemap-tester will fail within seconds, with no particular parameter besides the name of a file on Lustre.

      # ./src/fiemap-tester /mnt/lustre/qwerty
      preallocation not supported, disabling
      Starting infinite run, if you don't see any output then its working properly.
      ERROR: couldn't find extent at 197
      map is 'HHHHHHDHDDDHDDDHDHHHDHHHHHDHDHDDDDHDDDDHDHDDDDDDDHHHDHDHHHDDHHHDHHDHHDDHDDDHHHHHHDDDDHHDDHDDDDDDHHHDDHDDDHHHHHHDDHDDHDHDDHDHDDDHHDDHDDHHDDHHHHDDHHHDHDDDHDDDDDHHDHHDHHHHDHDDHHHDDDHHDDHDDDHDDHHDDHHDHDDDHDHDDHDDDDDHDDHHDHHHHHHDDDHHHHDDHDHHHDHHHHDDDDHHHHHHDHHHHDHDHDDHHHDHDDHHDDDDHHHHDHDHHDHDDHHDDDHDDHHHDHHDDHHHDHHHHDDDDHDHHDHHHHDHDDDHDDDHDHHDHHDDDHDHDHDDDHHHDHHHHHDDDDHHDDHDHHDHHHDHHDHHHHDHHHHHQ'
      logical: [       6..       6] phys:    34998..   34998 flags: 0x80000000 tot: 1
      logical: [       8..      10] phys:    34999..   35001 flags: 0x80000000 tot: 3
      logical: [      12..      14] phys:    35002..   35004 flags: 0x80000000 tot: 3
      ...
      logical: [     187..     188] phys:    35094..   35095 flags: 0x80000000 tot: 2
      logical: [     191..     192] phys:    35096..   35097 flags: 0x80000000 tot: 2
      logical: [     195..     195] phys:    35098..   35098 flags: 0x80000000 tot: 1
      Problem comparing fiemap and map
      

      Related to LU-920.

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              • Assignee:
                wc-triage WC Triage
                Reporter:
                fzago Frank Zago
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                • Created:
                  Updated: