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  1. Lustre
  2. LU-2141

Soft lockup at mount time

Details

    • Story
    • Resolution: Duplicate
    • Blocker
    • None
    • Lustre 2.4.0
    • Lustre 3.5.53-3chaos, BG/Q ppc64 client
    • 5149

    Description

      We saw a Sequoia client soft lockup during filesystem mount time. The backtraces from the console are in the sequoia_ion_console.txt attachment.

      No further info to go on at this time. Admins rebooted node before we got to investigate.

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        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. LU-2263 CPU Soft Lockups due to many threads spinning on import lock on Sequoia IO nodes

          • Blocker - Blocks development and/or testing work, production could not run.
          • Resolved

          Activity

            [LU-2141] Soft lockup at mount time
            prakash Prakash Surya (Inactive) added a comment -

            Likely a duplicate of LU-2263. More debug data in that ticket.

            prakash Prakash Surya (Inactive) added a comment - Likely a duplicate of LU-2263 . More debug data in that ticket.
            morrone Christopher Morrone (Inactive) added a comment -

            I am not aware of any. This is probably lower priority at the moment than other tickets.

            morrone Christopher Morrone (Inactive) added a comment - I am not aware of any. This is probably lower priority at the moment than other tickets.
            bzzz Alex Zhuravlev added a comment -

            Chris, have you observed this since 16 Oct?

            bzzz Alex Zhuravlev added a comment - Chris, have you observed this since 16 Oct?
            morrone Christopher Morrone (Inactive) added a comment -

            It is happening again, which many Sequoia client nodes hanging. This is a major problem for sequoia.

            The soft lockup messages are exactly the same, and the node is completely unresponsive.

            morrone Christopher Morrone (Inactive) added a comment - It is happening again, which many Sequoia client nodes hanging. This is a major problem for sequoia. The soft lockup messages are exactly the same, and the node is completely unresponsive.
            pjones Peter Jones added a comment -

            Any ideas Alex?

            pjones Peter Jones added a comment - Any ideas Alex?

            People

              bzzz Alex Zhuravlev
              morrone Christopher Morrone (Inactive)
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              Dates

                Created:
                Updated:
                Resolved: