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  1. Lustre
  2. LU-12361

cp --sparse doesn't work correctly in

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: Lustre 2.13.0, Lustre 2.12.3
    • Labels:
      None
    • Severity:
      3
    • Rank (Obsolete):
      9223372036854775807

      Description

      When running copy a sparse file, it caused file different:

      + rm -f k
      + dd bs=1k seek=128 of=k
      0+0 records in
      0+0 records out
      0 bytes (0 B) copied, 0.000324957 s, 0.0 kB/s
      + ls -l k
      -rw-r--r-- 1 root root 131072 May 30 17:17 k
      + du -sb k
      131072 k
      + printf y
      + ls -l k
      -rw-r--r-- 1 root root 131073 May 30 17:17 k
      + du -sb k
      131073 k
      + cp --sparse=always k k2
      + ls -l k2
      -rw-r--r-- 1 ddn01 ddn 131073 May 30 17:17 k2
      + du -sb k2
      131073 k2
      + echo 0
      0
      + cmp k k2
      k k2 differ: char 131073, line 1
      + echo 1
      1
      + diff k k2
      Binary files k and k2 differ
      + echo 2
      2
      

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            • Assignee:
              wshilong Wang Shilong
              Reporter:
              wshilong Wang Shilong
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              Dates

              • Created:
                Updated:
                Resolved: