I have a new computer that I put Debian testing (bullseye).
Normally, everything is fine in Debian stable. This one gives segmentation fault when I run the program.
It compiles as expected. Does not run though.
I have no clue why.
Could not report it either. The mail bounced. The crash report is here:



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Hello,

Damned, my program crashed Gambas that way :

When I run the program, it gives a segmentation fault.
Btw, the same code runs fine on debian 10.3.
The system is, debian testing weekly as of midFebruary.




gdb) run
Starting program: /usr/bin/gbx3
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Detaching after vfork from child process 4089]
[New Thread 0x7ffff1ae3700 (LWP 4091)]
[New Thread 0x7fffeadea700 (LWP 4095)]

Thread 1 "gbx3" received signal SIGSEGV, Segmentation fault.
0x00007ffff5e3dbd4 in QCoreApplication::postEvent(QObject*, QEvent*, int) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5

The problem seems to have something to do with QT.

Have a look in Synaptic to ensure all the Gambas QT components have been installed and if not install them.

<IMG src="http://www.cogier.com/gambas/Synaptic1.png"> </IMG>

You could try changing the toolkit. Try any or all of the following gb.gui, gb.gui.qt, gb.gtk3,gb.qt4, gb.qt5.

However, without the program itself it's a little difficult to work out what's wrong. If none of this works can we see the program?

 Thanks for the reply..
I have all gambas components installed: gambas3*
I can post the software, but it is a bit large. We are using an ERP I wrote in gambas.
The thing is, it works well from fedora25-31 and debian 9.3 - 10.3..
I think it is a library problem related to debian 11: I am using debian tesing in my laptop.
How do I figure it out?
The same binary xxx.gambas that runs in others gives segmentation fault.
Here is the code that raises the error:

- dbConn provides Connection

Public Sub _init()
  ntParam = New Settings(Application.Path & "/nt.v2.config")
  dbConn = New DbConnection
  zamanla = New Timer As "tetik"
  zamanla.Delay = 300000
  zamanla.Enabled = True
  zamanla.Start
  Try dbConn.get_connection().Open()
  If Error Then
    is_online = False
    bl_offline.get_productsFromFile(False)
    Return
  Else
    is_online = True
    secure = New Bl_security
    email = New Bl_email
    
    If ntParam["diğer/use_backup_server"] = "yes" Then dbConn.init_slave()
  Endif
End  ————————→ error after this line..




Thanks….

 UPDATE:

The same problem comes up after fedora upgrade to v. 30.