Browse Prior Art Database

Advanced Trace Functions

IP.com Disclosure Number: IPCOM000119149D
Original Publication Date: 1997-Dec-01
Included in the Prior Art Database: 2005-Apr-01
Document File: 2 page(s) / 58K

Publishing Venue

IBM

Related People

Ward, RP: AUTHOR [+4]

Abstract

Disclosed is a method for providing Advanced Trace Functions. o Provide the ability to create additional trace entries outside the established set Current trace facilities provide a set of predetermined trace points which do not always collect the required data to diagnose a failure. That is, unique failures may require trace points that are not shipped with the initial product. o Creating a single trace entry that is addressable from any point in a product This allows service personnel to provide customers with a patch that branches to the predetermined trace entry. This trace entry generates unique and specific trace information for a specific problem. This trace entry will be in chronological order within the standard product trace output.

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This is the abbreviated version, containing approximately 53% of the total text.

Advanced Trace Functions

      Disclosed is a method for providing Advanced Trace Functions.
  o  Provide the ability to create additional trace entries
      outside the established set
       Current trace facilities provide a set of predetermined
      trace points which do not always collect the required data
      to diagnose a failure.  That is, unique failures may require
      trace points that are not shipped with the initial product.
  o  Creating a single trace entry that is addressable from any
      point in a product
       This allows service personnel to provide customers with a
      patch that branches to the predetermined trace entry.  This
      trace entry generates unique and specific trace information
      for a specific problem.  This trace entry will be in
      chronological order within the standard product trace
      output.  Generally, a product such as a Generalized Trace
      Facility (GTF) would be used to to capture the data although
      it is stand alone data and not contained within the product
      trace.  Certain complex problems would benefit if the trace
      data was captured sequentially and associated within the
      ongoing internal trace data.  This technique satisfies the
      requirement.
  o  Creating a physical trace file from system dump
       Situations occur when a product error is encountered and
      trace output recording has been disabled.  If a dump was
      received at the time of the error, the internal trace
      entries are within the dump and can be salvaged.  Using
      the internal product trace control blocks, it is possible
      to identify the first/earliest trace entry within the trace
      wrap buffer.  If the buffer has wrapped, the current trace
      en...