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  1. Lustre
  2. LU-15532

OOM in osd_device_alloc()

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Details

    • Bug
    • Resolution: Unresolved
    • Minor
    • None
    • None
    • None
    • 3
    • 9223372036854775807

    Description

      With my debug kernel (3.10.0-1062.9.1.el7.x86_64.debug) and v2_14_57-74-g5cde554f7f,
      struct brw_stats is now 47KB and the ldiskfs struct osd_device 50KB.

      In osd_device_alloc() we allocate the device using OBD_ALLOC_PTR() so this is an order 4 kmalloc which OOM pretty easily.

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          is related to

          Improvement - An improvement or enhancement to an existing feature or task. LU-13309 performance optimizations for brw

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

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              wc-triage WC Triage
              jhammond John Hammond
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              Dates

                Created:
                Updated: