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List:       koffice
Subject:    Re: Export - Kword Crash
From:       David Faure <faure () kde ! org>
Date:       2003-08-25 12:48:32
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On Monday 25 August 2003 11:13, Bharathi S wrote:
> #4  0x40c2c6f7 in QScrollBar::~QScrollBar() ()
>    from /usr/local/qt/lib/libqt.so.3
> #5  0x40c2f269 in QScrollView::~QScrollView() ()
>    from /usr/local/qt/lib/libqt.so.3
> #6  0x40beeff4 in QListBox::~QListBox() () from 
>    /usr/local/qt/lib/libqt.so.3
> #7  0x4054f462 in KCompletionBox::~KCompletionBox() ()
>    from /usr/local/kde/lib/libkdeui.so.4
> #8  0x4048fc0d in KLineEdit::~KLineEdit() ()
>    from /usr/local/kde/lib/libkdeui.so.4
> #9  0x40b555d0 in QWidget::~QWidget() () from 
>    /usr/local/qt/lib/libqt.so.3
> #10 0x40bb8fbc in QComboBox::~QComboBox() () from 
>    /usr/local/qt/lib/libqt.so.3
> #11 0x405137c5 in KComboBox::~KComboBox() ()
>    from /usr/local/kde/lib/libkdeui.so.4
> #12 0x402e9293 in KURLComboBox::~KURLComboBox() ()
>    from /usr/local/kde/lib/libkio.so.4
> #13 0x40b55b01 in QWidget::~QWidget() () from 
>    /usr/local/qt/lib/libqt.so.3
> #14 0x40b555d0 in QWidget::~QWidget() () from 
>    /usr/local/qt/lib/libqt.so.3
> #15 0x40ca0a8f in QDialog::~QDialog() () from 
>    /usr/local/qt/lib/libqt.so.3
> #16 0x404e55eb in KDialogBase::~KDialogBase() ()
>    from /usr/local/kde/lib/libkdeui.so.4
> #17 0x402cee8c in KFileDialog::~KFileDialog() ()
>    from /usr/local/kde/lib/libkio.so.4
> #18 0x4007db2c in ~KoFileDialog (this=0x832a4f0) at 
>    koMainWindow.cc:600

Well known, but still unexplained crash.
It looks like a binary incompatible change in Qt, since it happened after the Qt4
switch, and recompiling kdelibs/kio from scratch fixed it for me (and others IIRC).
This is very difficult to debug - one would need to downgrade to Qt3, recompile kdelibs,
then upgrade to Qt4 again ... and somehow figure out why it crashes (gdb or valgrind
don't really help in such a case)...

-- 
David FAURE, faure@kde.org, sponsored by Trolltech to work on KDE,
Konqueror (http://www.konqueror.org), and KOffice (http://www.koffice.org).
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