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  1. Lustre
  2. LU-14428

Convert tracefile to use ring_buffer from linux

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Details

    • Improvement
    • Resolution: Unresolved
    • Minor
    • None
    • None
    • None
    • 9223372036854775807

    Description

      Linux contains a ring_buffer which supports low-overhead appends for messages.

      This is similar to the trace log in tracefile.c, but with lower overhead.

      Converting to use this removes a lot of code and reduces duplication for when we merge lustre upstream.

       

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        Issue Links

          has to be done before

          Improvement - An improvement or enhancement to an existing feature or task. LU-16746 Convert tracefile to export debug logs via character device

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

          Bug - A problem which impairs or prevents the functions of the product. LU-17639 Trace cpu data (tcd) not initialized correctly

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

          Bug - A problem which impairs or prevents the functions of the product. LU-17418 Lustre crashed immediately after load with debug kernel

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

          Bug - A problem which impairs or prevents the functions of the product. LU-15306 recovery-small: lightweight client was not recovered

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

          Bug - A problem which impairs or prevents the functions of the product. LU-17253 Crash dump lustre logs extractor tool

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

          Technical task - A technical task. LU-8980 Add tracepoint support to Lustre

          • Critical - Crashes, loss of data, severe memory leak.
          • Reopened
          is related to

          Improvement - An improvement or enhancement to an existing feature or task. LU-9859 libcfs simplification

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

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              neilb Neil Brown
              neilb Neil Brown
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              Dates

                Created:
                Updated: