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  1. Lustre
  2. LU-15815

fast_read/stale data/reclaim workround causes SIGBUS

Details

    • Bug
    • Resolution: Fixed
    • Critical
    • Lustre 2.15.0
    • None
    • None
    • 3
    • 9223372036854775807

    Description

      The fast_read stale data workaround from LU-14541 can cause applications to receive a spurious SIGBUS when reclaim runs concurrently with page fault handler for mmaped files.

      Attachments

        Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. LU-15819 Executables run from Lustre may receive spurious SIGBUS signals

          • Blocker - Blocks development and/or testing work, production could not run.
          • Closed
          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-12587 DIO fallback to Buffer IO unexpectedly

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Reopened

          Bug - A problem which impairs or prevents the functions of the product. LU-16160 take ldlm lock when queue sync pages

          • Major - Major loss of function.
          • Resolved
          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-8633 SIGBUS under memory pressure with fast_read enabled

          • Critical - Crashes, loss of data, severe memory leak.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. LU-14541 Memory reclaim caused a stale data read

          • Critical - Crashes, loss of data, severe memory leak.
          • Resolved

          Activity

            [LU-15815] fast_read/stale data/reclaim workround causes SIGBUS
            adilger Andreas Dilger made changes -
            Labels Original: always_except
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-16160 [ LU-16160 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-12587 [ LU-12587 ]
            paf0186 Patrick Farrell made changes -
            Resolution New: Fixed [ 1 ]
            Status Original: Reopened [ 4 ] New: Resolved [ 5 ]
            jhammond John Hammond made changes -
            Attachment New: mmap_fault_vs_drop_caches3.c [ 43561 ]
            jhammond John Hammond made changes -
            Assignee Original: John Hammond [ jhammond ] New: Andrew Perepechko [ panda ]
            pjones Peter Jones made changes -
            Resolution Original: Fixed [ 1 ]
            Status Original: Resolved [ 5 ] New: Reopened [ 4 ]
            pjones Peter Jones made changes -
            Resolution New: Fixed [ 1 ]
            Status Original: Open [ 1 ] New: Resolved [ 5 ]
            adilger Andreas Dilger made changes -
            Labels New: always_except
            adilger Andreas Dilger made changes -
            Priority Original: Minor [ 4 ] New: Critical [ 2 ]

            People

              panda Andrew Perepechko
              jhammond John Hammond
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              Dates

                Created:
                Updated:
                Resolved: