I've had variations on this crash about 5 times in the last few weeks of using the latest version. My system is running a fully updated Ubuntu 6.06 beta. I haven't discerned any pattern to when the crash occurs.

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Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1232857408 (LWP 6312)]
[KCrash handler]
#6  0xffffe410 in __kernel_vsyscall ()
#7  0xb68939a1 in raise () from /lib/tls/i686/cmov/libc.so.6
#8  0xb68952b9 in abort () from /lib/tls/i686/cmov/libc.so.6
#9  0xb6a71c07 in __gnu_cxx::__verbose_terminate_handler ()
   from /usr/lib/libstdc++.so.6
#10 0xb6a6f915 in __gxx_personality_v0 () from /usr/lib/libstdc++.so.6
#11 0xb6a6f94a in std::terminate () from /usr/lib/libstdc++.so.6
#12 0xb6a6ffb9 in __cxa_pure_virtual () from /usr/lib/libstdc++.so.6
#13 0xb5d48242 in kt::PeerViewItem::update ()
   from /usr/lib/kde3/ktinfowidgetplugin.so
#14 0xb5d486d1 in kt::PeerView::update ()
   from /usr/lib/kde3/ktinfowidgetplugin.so
#15 0xb5d464a9 in kt::InfoWidget::update ()
   from /usr/lib/kde3/ktinfowidgetplugin.so
#16 0xb5d3d0c2 in kt::InfoWidgetPlugin::guiUpdate ()
   from /usr/lib/kde3/ktinfowidgetplugin.so
#17 0xb7f05532 in kt::PluginManager::updateGuiPlugins ()
   from /usr/lib/libktorrent.so.0
#18 0x08060846 in KTorrent::updatedStats ()
#19 0x0806124a in KTorrent::qt_invoke ()
#20 0xb7061e29 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#21 0xb70628c4 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#22 0xb73f6f1e in QTimer::timeout () from /usr/lib/libqt-mt.so.3
#23 0xb7086e21 in QTimer::event () from /usr/lib/libqt-mt.so.3
#24 0xb6ff7dc6 in QApplication::internalNotify () from /usr/lib/libqt-mt.so.3
#25 0xb6ff7fc2 in QApplication::notify () from /usr/lib/libqt-mt.so.3
#26 0xb7796d7d in KApplication::notify () from /usr/lib/libkdecore.so.4
#27 0xb6f890ef in QApplication::sendEvent () from /usr/lib/libqt-mt.so.3
#28 0xb6fe97b3 in QEventLoop::activateTimers () from /usr/lib/libqt-mt.so.3
#29 0xb6f9ceff in QEventLoop::processEvents () from /usr/lib/libqt-mt.so.3
#30 0xb70108b7 in QEventLoop::enterLoop () from /usr/lib/libqt-mt.so.3
#31 0xb70107da in QEventLoop::exec () from /usr/lib/libqt-mt.so.3
#32 0xb6ff68d5 in QApplication::exec () from /usr/lib/libqt-mt.so.3
#33 0x0805c0ef in main ()


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Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1233193280 (LWP 29821)]
[KCrash handler]
#6  0xffffe410 in __kernel_vsyscall ()
#7  0xb68419a1 in raise () from /lib/tls/i686/cmov/libc.so.6
#8  0xb68432b9 in abort () from /lib/tls/i686/cmov/libc.so.6
#9  0xb6a1fc07 in __gnu_cxx::__verbose_terminate_handler ()
   from /usr/lib/libstdc++.so.6
#10 0xb6a1d915 in __gxx_personality_v0 () from /usr/lib/libstdc++.so.6
#11 0xb6a1d94a in std::terminate () from /usr/lib/libstdc++.so.6
#12 0xb6a1dfb9 in __cxa_pure_virtual () from /usr/lib/libstdc++.so.6
#13 0xb5ca7212 in kt::PeerViewItem::update ()
   from /usr/lib/kde3/ktinfowidgetplugin.so
#14 0xb5ca76a1 in kt::PeerView::update ()
   from /usr/lib/kde3/ktinfowidgetplugin.so
#15 0xb5ca54a3 in kt::InfoWidget::update ()
   from /usr/lib/kde3/ktinfowidgetplugin.so
#16 0xb5c9c0c2 in kt::InfoWidgetPlugin::guiUpdate ()
   from /usr/lib/kde3/ktinfowidgetplugin.so
#17 0xb7eb3a22 in kt::PluginManager::updateGuiPlugins ()
   from /usr/lib/libktorrent.so.0
#18 0x08060ce6 in QGList::count ()
#19 0x08061714 in QGList::count ()
#20 0xb700fe29 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#21 0xb70108c4 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#22 0xb73a4f1e in QTimer::timeout () from /usr/lib/libqt-mt.so.3
#23 0xb7034e21 in QTimer::event () from /usr/lib/libqt-mt.so.3
#24 0xb6fa5dc6 in QApplication::internalNotify () from /usr/lib/libqt-mt.so.3
#25 0xb6fa5fc2 in QApplication::notify () from /usr/lib/libqt-mt.so.3
#26 0xb7743d7d in KApplication::notify () from /usr/lib/libkdecore.so.4
#27 0xb6f370ef in QApplication::sendEvent () from /usr/lib/libqt-mt.so.3
#28 0xb6f977b3 in QEventLoop::activateTimers () from /usr/lib/libqt-mt.so.3
#29 0xb6f4aeff in QEventLoop::processEvents () from /usr/lib/libqt-mt.so.3
#30 0xb6fbe8b7 in QEventLoop::enterLoop () from /usr/lib/libqt-mt.so.3
#31 0xb6fbe7da in QEventLoop::exec () from /usr/lib/libqt-mt.so.3
#32 0xb6fa48d5 in QApplication::exec () from /usr/lib/libqt-mt.so.3
#33 0x0805c46f in ?? ()
#34 0xb682dea2 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#35 0x0805c0d1 in ?? ()


This looks similar to :

http://bugs.kde.org/show_bug.cgi?id=127743

There are no backtraces in the bug report, but when I reproduced it I got crashes in PeerViewItem to.

We are working on it.

George wrote:This looks similar to :

http://bugs.kde.org/show_bug.cgi?id=127743

There are no backtraces in the bug report, but when I reproduced it I got crashes in PeerViewItem to.

We are working on it.

It may be the same root cause, but the situation in which it occurs is not the same.

As far as I can remember, it has only happened when a multi-file torrents was being seeded. That agrees with the bug report. However, I had not selected / deselected any files in the loaded torrents. So the problem may be triggered by that, but also triggered in other situations.