Conference azur::mcc

>Does it correspond to a known bug ?

I don't know.

It looks like a null pointer was dereferenced, which could indicate
that you were out of virtual memory.  Check your VIRTUALPAGECNT sysgen
parameter and your username's PAGE FILE QUOTA to ensure that you
are running in a supported configuration.

If your quotas look good, but your IMPM session had been up for a
very long time (weeks or days, depending on how much activity was
going on), it's possible that memory leaks exhausted all available
memory.

If you can rule those possibilities out, then read on.

Is this problem reproducible?

If so, we can use the debugger to find out what's going on.

If not, and you can remember (roughly) the actions
you took in the sesion that did crash, repeat the actions and
then use SDA to get a listing of the images.  That will
at least tell us in which image the accvio occurred.

$ analyze/system
$ show process/image <process_name>

Customer problem: he can make MCC crash at will.

DECmcc-BMS V1.2, Motif 1.0A, VMS V5.5-1.  As soon as the map window
comes up he:
	selects customize
		map
			map dimensions
			map postion
			ok
	customize
		save current settings
	customize
		use current settings
	file
	crash with reserved operand fault

I have tried to duplicate on my work stations, and cannot, my VMS is
5.4-3.   To duplicate the problem found a VMS V5.5-1 system running 
BMS V1.2, MCC crashed at first try screen dump included:


%CMA-F-EXCCOP, exception raised; VMS condition code follows
-SYSTEM-F-ROPRAND, reserved operand fault at PC=00049322, PSL=03C00001
%TRACE-F-TRACEBACK, symbolic stack dump follows
module name     routine name                     line       rel PC    abs PC

                                                           0004B8C4  0004B8C4
                                                           0007C782  0007C782
                                                           000775DC  000775DC
                                                           0007AC78  0007AC78

More info please:

	Is a domain open in the Map Window?
	After save current settings, do you 
		Use Default Settings or
		Use Last Saved Settings				

	Does the acc-vio occur if you select any menu, or only File?

Verna

    More info:
    	After saving current settings, the next use of the customize menu
    	is to USE LAST SAVE SETTINGS.  Yes a domain is open, opened as the
    	default domain.  I have not tried other than the file menu.
    
    	This is a RESERVED OPERAND CRASH, not accvio.
    
    Steve  

    One of our SVPs (Mentec) got the same problem (.0) while testing
    their Access Module.

    It turned out that MAXBUF was too low on their machine. I don't know
    what value they set it to, but rising MAXBUF definitely cured the
    problem.

    Maybe we just need another minimum for a SYSGEN parameter?

    *Robert

    Well,
    
    Raising MAXBUF for the reserved operand fault reported in this node
    does not work.  Guess its a CLD since there is no work around other tan
    don't do this.
    
    Steve

    Sometimes this may happen if the dispatch table is out of date.  For
    example, there could be two dispatch tables, or a new version of a
    management module may have replaced an older one without re-enrolling
    it.
    
    You could try checking the user is really pointing to the right
    dispatch table.  You may want to delete the dispatch table and
    re-enroll everything.  You can do this by 
    
    $ @sys$startup:mcc_startup_bms.com ENROLL
    
    For the BMS components.
    
    Another wild-guess.  Perhaps some obsolete/incompatible image, like
    some MCC image in SYS$SPECIFIC:[SYSEXE] or SYS$SPECIFIC:[SYSLIB]? What
    about the DECwindows and DNS images?  The dates and sizes look kosher?
    
    Sorry, Reserved Operand Faults are not something we see very often.
    
    -Matt.

Steve,

A couple of things to try to give us more info.

	It would be interesting to know if the resource file has been clobbered
	in any way between what it looks like before you customize and after
	you save the customized values.  The only values that should be
	different are those for map dimensions and position.  Could you 
	check that and reply.

	Also I am not familiar with Motif 1.0A.  Is there any possibility
	of installing a newer Motif.

	Additionally, does the same problem occur with other actions after
	customizing, and does the same problem occur if you customize other
	aspects of the map or manangement window.

	The more information you can give us, the better chance we have of
	solving the problem.

Thanks,
Verna

VAX/VMS V5.5-2,  DECmcc/EMS V1.2.1

We had the same error in the historian background process, which is used to 
record data from different Brdiges and Routers, see following log-file:


.....
$!
$	BTS == "$SYS$SYSTEM:MCC_HISTORIAN_FM_BG.EXE"
$	BTS ".MCC.GD.V.MCC_REACH" "20"
%Thread 3 terminating with exception:
%CMA-F-EXCCOP, exception raised; VMS condition code follows
-SYSTEM-F-ACCVIO, access violation, reason mask=04, virtual address=00BF77FF,
 PC=00128BB8, PSL=03C00000



The error must have been be raised during the recording operations at about
9-Feb 18:01. The recording hanged after the error, here are some recording
statuses:
 
!
!SNMP gdvrpl Interface 1 
!AT 10-FEB-1993 15:04:43 
!
!Recording parameters for the partition "Identifiers" :
!                        Recording state = ACTIVE,
!                            State since =  4-FEB-1993 11:20:03.48,
!                         Polling period = 0 03:00:00.00,
!                             Begin time =  4-FEB-1993 12:01:00.54,
!                               End time = 25-MAY-2012 00:00:00.00,
!                               Keep age = 90 00:00:00.00,
!                           Request time =  4-FEB-1993 11:19:44.62,
!                           Requested by = "NETMAN",
!           Time of last successful poll = " 9-FEB-1993 18:01:03.44",
!             Number of successful polls = 42,
!               Time of last failed poll = " 6-FEB-1993 09:01:00.65",
!               Last poll failure reason = "MCC specialized exception code : 2",
!                 Number of failed polls = 1,
!        Last historical expiration time = " 9-FEB-1993 18:01:03.44",
!        Time of last expiration failure = "NONE",
!         Last expiration failure reason = "N/A",
!          Number of expiration failures = 0
!
!SNMP gdvrpt Interface 5 
!AT 10-FEB-1993 15:04:55 
!
!Recording parameters for the partition "Identifiers" :
!                        Recording state = ACTIVE,
!                            State since =  4-FEB-1993 11:23:57.07,
!                         Polling period = 0 03:00:00.00,
!                             Begin time =  4-FEB-1993 12:01:40.52,
!                               End time = 25-MAY-2012 00:00:00.00,
!                               Keep age = 90 00:00:00.00,
!                           Request time =  4-FEB-1993 11:23:46.56,
!                           Requested by = "NETMAN",
!           Time of last successful poll = " 9-FEB-1993 18:01:41.60",
!             Number of successful polls = 43,
!               Time of last failed poll = "NONE",
!               Last poll failure reason = "N/A",
!                 Number of failed polls = 0,
!        Last historical expiration time = " 9-FEB-1993 18:01:41.60",
!        Time of last expiration failure = "NONE",
!         Last expiration failure reason = "N/A",
!          Number of expiration failures = 0
!
!Bridge PTTCH:.telco.v.es.gdvb2hogu LINE 1 
!AT 10-FEB-1993 15:05:08 
!
!Recording parameters for the partition "Identifiers" :
!                        Recording state = ACTIVE,
!                            State since =  4-FEB-1993 11:24:20.40,
!                         Polling period = 0 03:00:00.00,
!                             Begin time =  4-FEB-1993 12:02:00.93,
!                               End time = 25-MAY-2012 00:00:00.00,
!                               Keep age = 90 00:00:00.00,
!                           Request time =  4-FEB-1993 11:24:10.05,
!                           Requested by = "NETMAN",
!           Time of last successful poll = " 9-FEB-1993 15:02:01.75",
!             Number of successful polls = 42,
!               Time of last failed poll = "NONE",
!               Last poll failure reason = "N/A",
!                 Number of failed polls = 0,
!        Last historical expiration time = " 9-FEB-1993 15:02:01.75",
!        Time of last expiration failure = "NONE",
!         Last expiration failure reason = "N/A",
!          Number of expiration failures = 0
!