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  1. Lustre
  2. LU-15456

deadlock in ll_new_node() when running racer

Details

    • Bug
    • Resolution: Fixed
    • Blocker
    • Lustre 2.15.0
    • Lustre 2.14.0, Lustre 2.15.0
    • None
    • 3
    • 9223372036854775807

    Description

      ll_new_node() will call ll_dir_getstripe() to fetch parent default LMV if md_create() returns -EREMOTE, but it doesn't call ll_finish_md_op_data() to unlock lli_lsm_sem before ll_dir_getstripe(), which will cause deadlock because the ll_dir_getstripe() will lock lli_lsm_sem again.

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        Activity

          [LU-15456] deadlock in ll_new_node() when running racer
          pjones Peter Jones made changes -
          Resolution New: Fixed [ 1 ]
          Status Original: Open [ 1 ] New: Resolved [ 5 ]
          pjones Peter Jones added a comment -

          Landed for 2.15

          pjones Peter Jones added a comment - Landed for 2.15
          gerrit Gerrit Updater added a comment -

          "Oleg Drokin <green@whamcloud.com>" merged in patch https://review.whamcloud.com/46157/
          Subject: LU-15456 llite: deadlock in ll_new_node()
          Project: fs/lustre-release
          Branch: master
          Current Patch Set:
          Commit: 1ce2fee3156858e132dbc1c90f72a32f526de988

          gerrit Gerrit Updater added a comment - "Oleg Drokin <green@whamcloud.com>" merged in patch https://review.whamcloud.com/46157/ Subject: LU-15456 llite: deadlock in ll_new_node() Project: fs/lustre-release Branch: master Current Patch Set: Commit: 1ce2fee3156858e132dbc1c90f72a32f526de988
          adilger Andreas Dilger made changes -
          Affects Version/s New: Lustre 2.14.0 [ 14490 ]
          adilger Andreas Dilger made changes -
          Affects Version/s New: Lustre 2.15.0 [ 14791 ]
          gerrit Gerrit Updater added a comment -

          "Lai Siyao <lai.siyao@whamcloud.com>" uploaded a new patch: https://review.whamcloud.com/46157
          Subject: LU-15456 llite: deadlock in ll_new_node()
          Project: fs/lustre-release
          Branch: master
          Current Patch Set: 1
          Commit: d46e8deb9c0e680e195ef4d2c8755f25ad27865f

          gerrit Gerrit Updater added a comment - "Lai Siyao <lai.siyao@whamcloud.com>" uploaded a new patch: https://review.whamcloud.com/46157 Subject: LU-15456 llite: deadlock in ll_new_node() Project: fs/lustre-release Branch: master Current Patch Set: 1 Commit: d46e8deb9c0e680e195ef4d2c8755f25ad27865f
          laisiyao Lai Siyao created issue -

          People

            laisiyao Lai Siyao
            laisiyao Lai Siyao
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            Dates

              Created:
              Updated:
              Resolved: