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  1. WiredTiger
  2. WT-3356

Use atomic reads of rwlocks and handle missing signals

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: WT2.9.3, 3.2.14, 3.4.5, 3.5.9
    • Component/s: None
    • Labels:
      None
    • Sprint:
      Storage 2017-06-19

      Description

      Since WT-3345 was merged, we have seen some assertion failures from stress tests on PPC.

      Further testing with test_rwlock has reproduced the same assertion failures. It appears that a writelock can race with queued readers.

      In addition, testing by users has hit apparent deadlock where readlock requests have stalled and no threads make progress.

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            Assignee:
            michael.cahill Michael Cahill
            Reporter:
            michael.cahill Michael Cahill
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              Dates

              Created:
              Updated:
              Resolved: