[Qt-interest] crash in destructor of mainwindow?

[Thiago Macieira]

Em Segunda-feira 12 Julho 2010, às 11:26:35, Matthias Pospiech escreveu:
> I get this crash, which I do not understand:
> 
> Stack Trace:
> 
> 0    QObjectPrivate::deleteChildren    qobject.cpp    1978    0x6a20f02b
> 1    ~QWidget    qwidget.cpp    1469    0x006ac6f3
> 2    ~QDialog    qdialog.cpp    328    0x00aeaeb4
> 3    ~DialogCameraSMX    DialogCameraSMX.cpp    24    0x00401c9c
> 4    QObjectPrivate::deleteChildren    qobject.cpp    1978    0x6a20f038
> 5    ~QWidget    qwidget.cpp    1469    0x006ac6f3
> 6    ~QMainWindow    qmainwindow.cpp    341    0x00a4149c
> 7    ~MainWindow    mainwindow.cpp    22    0x0040175f
> 8    main    main.cpp    9    0x00401419
> 
> 
> crash in last line of:
> 
> void QObjectPrivate::deleteChildren()
> {
>     const bool reallyWasDeleted = wasDeleted;
>     wasDeleted = true;
>     // delete children objects
>     // don't use qDeleteAll as the destructor of the child might
>     // delete siblings
>     for (int i = 0; i < children.count(); ++i) {
>         currentChildBeingDeleted = children.at(i);
>         children[i] = 0;
>         delete currentChildBeingDeleted;
> 
> 
> Why does this happen?

Can you paste a valgrind log of this crash?

-- 
Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
  Senior Product Manager - Nokia, Qt Development Frameworks
      PGP/GPG: 0x6EF45358; fingerprint:
      E067 918B B660 DBD1 105C  966C 33F5 F005 6EF4 5358
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 190 bytes
Desc: This is a digitally signed message part.
Url : http://lists.qt-project.org/pipermail/qt-interest-old/attachments/20100712/88c7c686/attachment.bin