Conference azur::mcc

2057.0. "Graph operation ACCVIOs when clicking "-" and "cancel" buttons" by CUJO::HILL (Dan Hill-Net.Mgt.-Customer Resident) Thu Jan 09 1992 13:06

    I have encountered numerous ACCVIOs using the GRAPH operation for
    counters.  I am running DECmcc BMS T1.2.4 with ELM T1.2.4 installed.
    
    This is similar to notes 1913 and 1945.
    
    GRAPHING BRIDGE LINE COUNTERS:
    	-Bad Frames Received, Total Frames Received, Framing Errors, and
    	 Carrier Lost
    			(Incidentally, with 4 or more counters, the 
    			 readability of values on the graph is
    			 questionable)
    
    	*When clicking "-" button in the graph window I get this ACCVIO:
    
    	 %Thread 36 terminating with exception:
    	 %SYSTEM-F-ACCVIO, access violation, reason mask=00, virtual
    	 address=00000000, PC=201C0000, PSL=010C09CC
    
    	*When clicking "cancel" button I got a stickman "pushing up
    	 daisies" icon and this ACCVIO:
    	
    	 %Thread 34 terminating with exception:
    		(plus same reason mask, etc. as previously mentioned)
        	(Note: 	Before cancel button, I had pressed the "stop"
    			button repeatedly and had gotten the stickman
    			"shrug" icon before the ACCVIO.)
    
    	*When clicking "cancel" button (graphing only 2 of the above
    	 counters) in the graph window, I get this ACCVIO error:
    
    	 %Thread 18 terminating with exception:
    		(and the same reason mask, etc. as previously mentioned).
    
    
    GRAPHING SNMP iFinoctets and iFinerrors:
    	*When clicking the "-" button in the graph window, I got the
    	 stickman "woe-is-me with hands on head" icon and this ACCVIO:
    
    	 %Thread 13 terminating with exception:
    		(plus same reason mask, etc. as previously mentioned,
    		 except PSL=00DD1FCC)
    
    In all cases, once ACCVIO was encountered, DECmcc was dead and had to
    be restarted. 
    
    
    -Dan

My VERY limited experience tells me it happens on VMS 5.4-3, and does
not happen on VMS 5.4-2 or 5.4-1. Can you verify this?

Peretz Gur-El 

    Thanks for the pointer.  I am running VMS V5.5 and DECmcc T1.2.4 on a
    VAXstation 3100/76.
    
    
    ******** Please reply to note 2053 from this point on.
    
    Thanks,
    Dan

Thanks for help in tracking this problem down.

It is fixed for next release.

Al Moore

>It is fixed for next release.

I'm glad the problem is fixed, but in the meantime, is there any way
to get around this?  Is there any way to demonstrate the graphing
function (I don't care what counters, what entities) without the
embarrassment of the ACCVIO and the need to restart DECMCC?

I'm running T1.2.4 on VMS V5.4-3.

Sid

    "Next release" in this context means the next baselevel that
    engineering makes available to the internal user base. That will
    likely be sometime in the next month.
    
    You are running field test software.
    
    I suggest as a workaround that
    - you don't demo the [-] and cancel buttons on the graph
    - and when you are done with the graph (and the customer is
      still there), you simply iconisize the window by clicking on the
      box in the upper left of the window. After the customer leaves,
      then clean up.
    - when demoing the graph, preplan what you are going to graph.
      initially just graph a couple of counters. If you want to show
      adding another graph, add a statistic. If you only need to show
      statistics, just put up 2 good ones (I find Average Block Size
      and Percent Utilization on a DECnet LINE to be good). Practice
      befor the customer shows up.
    
    s/rob