HP OpenVMS Systems

memory 2nd thing to go, can't remember 1st?

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The Question is:

 
Is there a nway to use a system service call to detect memory errors?  I've
used $DEV_SCAN and $GETDVI to find errors on other devices, but memory
errors are still a mystery to me.  I figure if VMS can detect them; then
there's probably a way to do it wit
h system service calls.  Anyway, I'd appreciate the help.
 

The Answer is :

 
  There is no supported mechanism for a program to detect memory errors.
  (The system memory and the CPU(s) are not treated as devices, and do not
  have associated device data structures visible to the device-related
  system services.)
 
  The recommended approach to checking for memory errors is to use DIAGNOSE
  (DECevent) on a regular basis.
 
	--
 
  The specific system data cell you will need to look in is EXE$GL_MEMERRS.
 
  Resolving this symbol in a program will require you to link against the
  SYS.STB symbol definitions on OpenVMS VAX:
 
    LINK <obj>,SYS$SYSTEM:SYS.STB/SELECT
 
  And against the base image (LINK/SYSEXE) on OpenVMS Alpha:
 
    $ LINK /SYSEXE <obj>
 
  These LINK commands will also render your program image dependent on the
  particular OpenVMS version the program was linked against.
 

  

     

     
answer written or last revised on ( 28-AUG-1998 )
     
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