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From d..@apache.org
Subject cvs commit: db-torque/xdocs changes.xml
Date Fri, 20 Jun 2003 16:04:19 GMT
dlr         2003/06/20 09:04:18

  Modified:    xdocs    changes.xml
  Log:
  Noted thread deadlock problem.
  
  Revision  Changes    Path
  1.84      +8 -0      db-torque/xdocs/changes.xml
  
  Index: changes.xml
  ===================================================================
  RCS file: /home/cvs/db-torque/xdocs/changes.xml,v
  retrieving revision 1.83
  retrieving revision 1.84
  diff -u -u -r1.83 -r1.84
  --- changes.xml	20 Jun 2003 13:29:27 -0000	1.83
  +++ changes.xml	20 Jun 2003 16:04:18 -0000	1.84
  @@ -60,6 +60,14 @@
         TRQS165: columns in an external schema caused Manager imports to be 
         generated
       </li>  
  +    <li>
  +      Corrected deadly multi-CPU thread deadlock problem discovered by Ed
  +      Korthof <ed@apache.org> and John McNally <jmcnally@apache.org>.  The
  +      problem was due to emulation of synchronization using an int counter
  +      (to improve performance by avoiding Java "synchronized" keyword).
  +      Post-increment and decrement operators compile to three op codes (with
  +      Sun's JDK 1.3.1 for Linux), unsafe on a multi-CPU box.      
  +    </li>
     </ul>
   </p>
   </subsection>
  
  
  

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