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1824.0. "Hardcopy print solution for AlphaStation " by TPOVC::MIKELI () Tue Jan 28 1997 22:58

            <<< HLDE01::SYSTEM_4:[NOTES$LIBRARY]LINKWORKS.NOTE;1 >>>
                                 -< LinkWorks >-
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Note 2164.0            General protection fault in CM.EXE              4 replies
COPCLU::CPC170::Flemmingc "Component of LinkWorks -" 20 lines  22-DEC-1994 15:19
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Hi,
One customer has a problem in the configuration manager. When he goes into 
Object Hierarchy, selects an object class (compound) and presses "location"
then he gets an 
"CM caused a general protection fault in CM.EXE at 0007:8FE9" error.

The error occurs only for user-defined sub-classes of cabinet or drawer. 
The error is 100% reproducable.

The environment is : HP-UX server, LinkWorks 2.1.7
		     Oracle 7.0.16.4.1
		     WFW 3.11 - Windows-client
		     SUN-select NFS/TCP/IP.


Is this a known error ? - can it be fixed?

Regards 

Flemming Carlsen/DEC-DK.
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Note 2164.1            General protection fault in CM.EXE                 1 of 4
HLDE01::MONNINK_H "LinkWorks Support Apeldoorn"      45 lines  22-DEC-1994 15:47
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    Flemming,
    
    
    Indeed this is known problem see note 1038.

    The suggested solution could be:
    
    On MSWindows clients a 'General Protection Fault' may occure when clicking
    on the location button in the ObjectClassHierachy screen of a specific 
    derived class. This same situation may result in a system hang on the MAC client
    and in a killed configuration process on the Motif client.	
	
    This problem is occuring when a sub class is derived from a higher level
    class and later on changes are made to the hierarchy of the higher level class from
    which the subclasses are derived.
	
    example:	Derive 2 classes from 'Folder', these 2 classes enherit all the 
		characteristics of the higher level class.
                
	  	Changing the ObjectClassHierachy of 'Folder' and removing  
		one of the derived folder classes from the hierachy  will create 
		the problem situation!
		Commit changes (and remove the cache files (see 1:) ), login again
		and then pressing the 'Location' button on the subclass of 'Folder'
		(the one removed from the Folder hierachy) will give the 'General
		Protection Fault'.
	  
    Solution:	If this problem or similar problem occures on the client always 
		verify the parent class contains all sub classess  defined under this
		parent class!
		In case of problems always make sure that you have the actual cache files 
		(see 1:) and then select the 'standard' button under 'Location' of the higher
		level object class, to reset the hierarchy to default values!.
		
 		     
 
    
    If this does not help the please contact me so that we can debug the
    problem!
    
    
    Han
	       

    
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Note 2164.2            General protection fault in CM.EXE                 2 of 4
COPCLU::CPC170::Flemmingc "Component of LinkWorks -" 22 lines  23-DEC-1994 15:21
                        -< Exactly how to solve this ? >-
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Han, 

Thank you for your reply.

Just to be sure how to make the solution for this problem: could you point out the exact 
procedure?

I checked note 1038 and it did not add anything more than you had already mentioned in 
your reply. 

>>Solution:  If this problem or similar problem occures on the client always
>>           verify the parent class contains all sub classess defined under
>>           parent class!
>>           In case of problems always make sure that you have the actual cache files
>>           (see 1:) and then select the 'standard' button under 'Location' of the higher
>>           level object class, to reset the hierarchy to default values!.

What is your ref to .1? - how to make sure/verify ?

Thank you and merry x-mas.

Flemming
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Note 2164.3            General protection fault in CM.EXE                 3 of 4
HLDE01::MONNINK_H "LinkWorks Support Apeldoorn"      53 lines  23-DEC-1994 15:44
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Flemming,
    
    I Copied the text from another document, here is the whole document:
    
Following problems are found inside LinkWorks Management components:

1:  When a System Administrator makes a change to the ObjectClassHierarchy
    of a compound Objekt, then after commiting changes and logout/login the 
    changes made will not appear in the ObjectClassHierachy!
    
    The changes are made but the cache files on the client are not updated
    correctly. This may lead to problems when a System Administrator wants to
    make more changes to the ObjectClassHierachy since the previous changes will
    be made undone!
 
    To bypass this problem one should remove the client cache files 
    ('DATA**.CLC')after committing changes on this client and before
     loggin in the next time. 	 
    


2:  On MSWindows clients a 'General Protection Fault' may occure when clicking
    on the location button in the ObjectClassHierachy screen of a specific 
    derived class. This same situation may result in a system hang on the MAC
    client and in a killed configuration process on the Motif client.	
	
    This problem is occuring when a sub class is derived from a higher level
    class and later on changes are made to the hierarchy of the higher level
    class from which the subclasses are derived.
	
    example:	Derive 2 classes from 'Folder', these 2 classes enherit all the 
		characteristics of the higher level class.
                
	  	Changing the ObjectClassHierachy of 'Folder' and removing  
		one of the derived folder classes from the hierachy  will 
    		create the problem situation!
		Commit changes (and remove the cache files (see 1:) ),
    		login again and then pressing the 'Location' button on the 
    		subclass of 'Folder'  (the one removed from the Folder
    		hierachy) will give the 'General Protection Fault'.
	  
    Solution:	If this problem or similar problem occures on the client always 
		verify the parent class contains all sub classess  defined
    		under this parent class!
		In case of problems always make sure that you have the actual
    		cache files (see 1:) and then select the 'standard' button
    		under 'Location' of the higher level object class, to reset
    		the hierarchy to default values!.
		
 		     
 
   Han	       

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Note 2164.4            General protection fault in CM.EXE                 4 of 4
COPCLU::CPC170::Flemmingc "Component of LinkWorks - " 7 lines  29-DEC-1994 14:41
                                 -< Thank you >-
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Han,

Thank you for your information, it is most helpfull.

Happy new year !

Regards Flemming