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  1. WiredTiger
  2. WT-3193

Close a race between verify opening a handle and eviction visiting it

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Details

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • WT2.9.2, 3.2.13, 3.4.4, 3.5.6
    • None
    • None
    • Storage 2017-03-06

    Description

      We have idenitified a race condition where the eviction server can attempt to walk a tree that has a NULL root page and result in a segfault.

      The issue is that verify uses a single (exclusively held) handle and switches in root pages from different checkpoints. If the eviction server starts a walk while the root page is being switched it can see a NULL page - which is weird.

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            keith.bostic@mongodb.com Keith Bostic
            alexander.gorrod@mongodb.com Alexander Gorrod
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            Dates

              Created:
              Updated:
              Resolved: