JM,

Is your Switch loop inside a While loop? If so, is Whileopt off?

Ben Petersen



On 7 Sep 2001, at 8:44, J.M. GRATIAS wrote:

> 
> Hi all,
> 
> Remember those periodics complains about problems when running RBW on NT 4
> workstations ?
> 
> I have a client that is exited for RBW severals times per month when he
> ENTER/EDIT USING some forms.
> He runs RBW6.1a + my distributed app that runs OK on most others places.
> 
> I went there yesterday and could look at the problem because it happen
> regularly : on some forms, probability is 25% (4 loops and he is pretty
> sure to be exited for RBW).
> 
> I installed RBW 6.5++ : no change.
> 
> The forms that make hang RBW are not complex (few variables, very few
> columns, 1 table) and code is simple and run with QUIT TO AsciiFile Name :
> 
> SET VAR vnomform TEXT = 'dossier'
> SWITCH (.vpick12)
> 
>    CASE 'Ajouter'
>       SET VAR vnbenr INTEGER = NULL, vmode TEXT = 'enter', +
>       vcaption TEXT = 'LOGINTRA. Cr�ation des Dossiers'
>       RUN coordonn IN coordonn.apx
>       ENTER &vnomform AT .vx1, .vy1, .vx2, .vy2 CAPTION .vcaption
>       BREAK
>    CASE ....
> ENDSW
> 
> I could't make it hang in TRACE mode, but it seems that problem on ENTER
> line.
> 
> Then this message display 2 times (translation from french) :
> 'Instruction at '0x007140ac' use memory adress '0x00000008'. The memory
> cannot be "read"
> Press OK to close application'
> 
> and then :
> 
> 'The exception "unknown software exception" (0x0000027) occurs in the
> application at adress 0x77f3b28c
> Press OK to close application'
> 
> Words between " are in english, rest of the message is in french.
> 
> I have a complete description of hardware/software configuration, and have
> screen prints of task manager, but nothing that could help me to understand
> what happen.
> 
> The users' PC has 64 Mb RAM, but same problem happen at same place and same
> adresses when running the app on a 128 Mb PC.
> 
> The only good new is that we could not duplicate the problem on a W2000
> workstation ....
> 
> Any new idea ?
> 
> 
> J.M. GRATIAS, Logimatique, France
> 


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