Bug 95775

[Waldo Bastian]

This code was recently changed, see r1.1055 of khtml_part.cpp and
http://bugs.kde.org/show_bug.cgi?id=67624

I don't see anything that is obviously wrong though or that could result in a 
double deletion or 0 entry in the frame-list.

Cheers,
Waldo

On Tuesday 28 December 2004 11:24, Andras Mantia wrote:
> Hi,
>
>  I got a crash report for Quanta (which is reproduceable with CVS HEAD)
> that indicates that the crash is in KHTML, although the only way to
> reproduce the crash is inside Quanta. The crash happens when you click
> on a download link from the sourceforge site (see the attached example:
> load into Quanta, do a preview and click on a download link for example
> for php documentation). The backtrace below, saying that the crash is
> because of  a "delete *it;", which makes me think that there is a
> double deletion somewhere.
> So you have any idea why does it crash and what can I do to avoid it? We
> use KHTML by subclassing it (kdewebdev/quanta/parts/preview), but in
> the subclass there is nothing really special, and the backtrace does
> not indicate any reference to the subclass except of
> WHTMLPart::qt_invoke.
>
> Andras
>
> Using host libthread_db library "/lib/libthread_db.so.1".
> [Thread debugging using libthread_db enabled]
> [New Thread 16384 (LWP 3375)]
> [KCrash handler]
> #5  0x00000000 in ?? ()
> #6  0x40530305 in KHTMLPart::clear (this=0x86922a8)
>     at /data/development/sources/kde-head/kdelibs/khtml/khtml_part.cpp:1372
> #7  0x405324ac in KHTMLPart::begin (this=0x86922a8, url=@0x86bb380,
> xOffset=0,
>     yOffset=0)
>     at /data/development/sources/kde-head/kdelibs/khtml/khtml_part.cpp:1782
> #8  0x40530bd1 in KHTMLPart::slotData (this=0x86922a8,
> kio_job=0x92d7a90,
>     data=@0xbfffee60)
>     at /data/development/sources/kde-head/kdelibs/khtml/khtml_part.cpp:1501
> #9  0x4054bd32 in KHTMLPart::qt_invoke (this=0x86922a8, _id=16,
> _o=0xbfffeb80)
>     at khtml_part.moc:487
> #10 0x082459db in WHTMLPart::qt_invoke (this=0x86922a8, _id=16,
> _o=0xbfffeb80)
>     at whtmlpart.moc:137
> #11 0x41680a2c in QObject::activate_signal ()
>    from /usr/lib/qt-copy-3.3/lib/libqt-mt.so.3
> #12 0x40bd2062 in KIO::TransferJob::data (this=0x92d7a90, t0=0x92d7a90,
>     t1=@0xbfffee60) at jobclasses.moc:972
> #13 0x40bbedbb in KIO::TransferJob::slotData (this=0x92d7a90,
>     _data=@0xbfffee60)
>     at /data/development/sources/kde-head/kdelibs/kio/kio/job.cpp:858
> #14 0x40bd270d in KIO::TransferJob::qt_invoke (this=0x92d7a90, _id=18,
>     _o=0xbfffeca0) at jobclasses.moc:1051
> #15 0x41680a2c in QObject::activate_signal ()
>    from /usr/lib/qt-copy-3.3/lib/libqt-mt.so.3
> #16 0x40bae40a in KIO::SlaveInterface::data (this=0x9247080,
> t0=@0xbfffee60)
>     at slaveinterface.moc:194
> #17 0x40bacb9f in KIO::SlaveInterface::dispatch (this=0x9247080,
> _cmd=100,
>     rawdata=@0xbfffee60)
>     at
> /data/development/sources/kde-head/kdelibs/kio/kio/slaveinterface.cpp:228
> #18 0x40bac85c in KIO::SlaveInterface::dispatch (this=0x9247080)
>     at
> /data/development/sources/kde-head/kdelibs/kio/kio/slaveinterface.cpp:173
> #19 0x40baa2c9 in KIO::Slave::gotInput (this=0x9247080)
>     at /data/development/sources/kde-head/kdelibs/kio/kio/slave.cpp:300
> #20 0x40babd47 in KIO::Slave::qt_invoke (this=0x9247080, _id=4,
> _o=0xbfffefa0)
>     at slave.moc:113
> #21 0x41680a2c in QObject::activate_signal ()
>    from /usr/lib/qt-copy-3.3/lib/libqt-mt.so.3
> #22 0x41680f8d in QObject::activate_signal ()
>    from /usr/lib/qt-copy-3.3/lib/libqt-mt.so.3
> #23 0x4198d698 in QSocketNotifier::activated ()
>    from /usr/lib/qt-copy-3.3/lib/libqt-mt.so.3
> #24 0x4169da01 in QSocketNotifier::event ()
>    from /usr/lib/qt-copy-3.3/lib/libqt-mt.so.3
> #25 0x41623b64 in QApplication::internalNotify ()
>    from /usr/lib/qt-copy-3.3/lib/libqt-mt.so.3
> #26 0x41625462 in QApplication::notify ()
>    from /usr/lib/qt-copy-3.3/lib/libqt-mt.so.3
> #27 0x411c3fe0 in KApplication::notify (this=0x8325848,
> receiver=0x8902888,
>     event=0xbffff2b0)
>     at
> /data/development/sources/kde-head/kdelibs/kdecore/kapplication.cpp:543 #28
> 0x416184ee in QEventLoop::activateSocketNotifiers ()
>    from /usr/lib/qt-copy-3.3/lib/libqt-mt.so.3
> #29 0x415d6e33 in QEventLoop::processEvents ()
>    from /usr/lib/qt-copy-3.3/lib/libqt-mt.so.3
> #30 0x41639caa in QEventLoop::enterLoop ()
>    from /usr/lib/qt-copy-3.3/lib/libqt-mt.so.3
> #31 0x41639b04 in QEventLoop::exec ()
>    from /usr/lib/qt-copy-3.3/lib/libqt-mt.so.3
> #32 0x41625350 in QApplication::exec ()
>    from /usr/lib/qt-copy-3.3/lib/libqt-mt.so.3
> #33 0x080a3405 in main (argc=1, argv=0xbffff644)
>     at /home/andris/development/kdewebdev-3.3/quanta/src/main.cpp:207

-- 
bastian at kde.org   |   Free Novell Linux Desktop 9 Evaluation Download
bastian at suse.com  |   http://www.novell.com/products/desktop/eval.html
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