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  1. WiredTiger
  2. WT-104

memory barrier after reading page's write generation

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    Details

    • Type: Task
    • Status: Closed
    • Resolution: Done
    • Affects Version/s: None
    • Fix Version/s: WT1.0
    • Component/s: None
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      Description

      It occurred to me – in the page-search code, we copy the page's write generation, then search the page.

      It occurs to me we should probably have a memory barrier instruction after we copy the write generation, otherwise the compiler might re-order that read after we've actually searched the page? (Or make page->write_gen volatile?)

      --keith

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              Assignee:
              keith.bostic Keith Bostic
              Reporter:
              wiredtiger WiredTiger, Inc.
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