[AWS] AWS GPL 2011 / Random Tasking_Error (aws-utils.adb:759) on applicatoin launch

[David SAUVAGE - AdaLabs Ltd]

Dear Pascal,

finally I got it, it as nothing to do with AWS.

The project use some high level components built using gprbuild, and
other low level components build using gnatmake.

Depending on what components are built first the issue happen...

I am using only gnatmake to build all components and the issue do not
happen anymore.

Sorry for the spam.

Cheers,

David SAUVAGE

Software Agile Architect, Director
AdaLabs Ltd - Mauritius
http://adalabs.com
+230 428 18 32
skype sauvaged
BRN C10097052
VAT 27035043


Le 20/01/2012 23:36, David SAUVAGE - AdaLabs Ltd a écrit :
> Pascal,
>
> it is not at elaboration, but during the first lines of my application
> execution, here is the calls before the SIGSEGV:
>
> 1. [application code] AWS.Log.Write (Log_Object, S);
> 2. [aws-log.adb:492] Write_Log ...
> 3. system.tasking.protected_objects.operation.protected_entry_call
> 4. system.tasking.protected_objects.operation.po_do_or_queue
> => SIGSEGV, Segmentation fault.
>
>
> AWS.Log.Start (Log_Object, ...);  as been called before the
> AWS.Log.Write (Log_Object, S);
> Is there any other conditions to ensure before using a data of type
> AWS.Log.Object declared at library level ?
>
> I replaced the AWS.Log.Write call with Ada.Text_IO.Put_Line and the
> issue did not occur.
>
> This issue is not systematic. It can stop occurring after recompilation
> or re-run.
>
> Cheers,
>
>
> David SAUVAGE
>
> Software Agile Architect, Director
> AdaLabs Ltd - Mauritius
> http://adalabs.com
> +230 428 18 32
> skype sauvaged
> BRN C10097052
> VAT 27035043
>
>
> Le 20/01/2012 23:07, David SAUVAGE - AdaLabs Ltd a écrit :
>> Pascal,
>>
>> Le 22/12/2011 19:29, Pascal Obry a écrit :
>>> Would be nice to have a reproducer indeed.
>> The issue is occurring again,
>>
>> when I debug the application using GPS debug session I got the following
>> error (at elaboration) I suppose.
>>
>> Program received signal SIGSEGV, Segmentation fault.
>> 0xb7750373 in system.tasking.protected_objects.operations.po_do_or_queue
>> () from
>> <gnat_install_path>/lib/gcc/i686-pc-linux-gnu/4.5.3/adalib/libgnarl-2011.so
>>
>> Currently, I don't know if this is related or not, but it is the first
>> time I have this.
>>
>> any tips on how to proceed is most welcome ...
>>
>> Cheers,
>>
>> David SAUVAGE
>>
>> Software Agile Architect, Director
>> AdaLabs Ltd - Mauritius
>> http://adalabs.com
>> +230 428 18 32
>> skype sauvaged
>> BRN C10097052
>> VAT 27035043
>>
>>