Details

    • Bug
    • Resolution: Fixed
    • Critical
    • Lustre 2.13.0, Lustre 2.12.1
    • Lustre 2.13.0
    • None
    • 3
    • 9223372036854775807

    Description

      This code was introduced by bz 18015 https://bugzilla.lustre.org/show_bug.cgi?id=18015

      Newer kernels rename that symbol and it's not used anyway, but also at least in RHEL 7.[345] there's bug in this functionality htat leads to use after frees that are seen prominently in our nfs testing in maloo (in addition to my testrig). See LU-11063.
      Example nfs failures:
      https://testing.whamcloud.com/test_sessions/1cd5592c-8319-4aa7-aa2b-4549a83ce9cd
      https://testing.whamcloud.com/test_sessions/9e6c8dec-d1dd-4ad4-b028-f98b5fdf63a9

      Anyway after reviewing the original patch I think we just need to get rid of this flag altogether and if the rapid load/unload is still a problem, work it around in some better more robust way.

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            [LU-11568] Get rid of SLAB_DESTROY_BY_RCU
            green Oleg Drokin made changes -
            Link New: This issue is related to LU-11063 [ LU-11063 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to DDN-762 [ DDN-762 ]
            pjones Peter Jones made changes -
            Link New: This issue is duplicated by DDN-711 [ DDN-711 ]
            pjones Peter Jones made changes -
            Summary Original: Get rif of SLAB_DESTROY_BY_RCU New: Get rid of SLAB_DESTROY_BY_RCU
            mdiep Minh Diep made changes -
            Fix Version/s New: Lustre 2.12.1 [ 14406 ]
            pjones Peter Jones made changes -
            Fix Version/s New: Lustre 2.13.0 [ 14290 ]
            Resolution New: Fixed [ 1 ]
            Status Original: Open [ 1 ] New: Resolved [ 5 ]
            green Oleg Drokin made changes -
            Assignee Original: WC Triage [ wc-triage ] New: Oleg Drokin [ green ]
            green Oleg Drokin made changes -
            Affects Version/s New: Lustre 2.13.0 [ 14290 ]
            green Oleg Drokin created issue -

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              green Oleg Drokin
              green Oleg Drokin
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              Dates

                Created:
                Updated:
                Resolved: