SUMMARY: threads problem

From: <bsramsey_at_CCGATE.HAC.COM>
Date: Thu, 05 Mar 1998 08:14:15 +0000

     I only received one response to my posting.
     
     Thanks to Emanuel Salazar who suggested I try using an older runtime
     library. I don't think we can use that approach in this case.
     
     I have a call logged with DEC and they are still researching it. Will
     followup when I have a resolution.
     
     
     
     ******* Original posting *******
     
     We have an Alpha 2100A (2 CPUs) running DU 4.0B supporting a
     'realtime' application. The application is written primarily in Ada.
     It runs correctly for random periods of time, sometimes as long as 1.5
     hrs, then seems to go into a loop. When this happens, the CPU usage
     for the process goes from approx 10% to 100% and remains there. One
     of the programmers believes that it is making a call to a delay
     statement and never returning. The process is multi-threaded and uses
     the Posix draft 4 threads libraries.
     
     The same application runs fine on another Alpha 2100 that is running
     an older version of the OS and the Ada compiler.
     
     Has anyone seen this behavior?
     
     TIA
     -Brenda Ramsey
     Raytheon Training Systems
     ----------------------------------------------------------------------
     Additional info.....
     
                                   DU Ada Fortran
                                   -----------------------
     doesn't work.......... 4.0B 330 410
     works................. 3.2G 320 360
Received on Thu Mar 05 1998 - 15:22:58 NZDT

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