Bug 362048

Application: ktorrent (5.0.1)
 (Compiled from sources)
Qt Version: 5.6.0
Frameworks Version: 5.21.0
Operating System: Linux 4.1.21-gentoo x86_64
Distribution: "Gentoo Base System release 2.2"

-- Information about the crash:
- What I was doing when the application crashed:
i have removed an old torrent (the last one from the list). After this i have clicked on the button "chunks" and the application crashed. The crash was not reproducible with an empty torrent list. so maybe the old (deleted) torrent was stil somewhat referenced?

-- Backtrace:
Application: KTorrent (ktorrent), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2feca8a840 (LWP 15068))]

Thread 6 (Thread 0x7f2fe9632700 (LWP 15070)):
#0  0x00007f2ffb40a3ed in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2ff5426f2c in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f2fdc038260, timeout=-1, context=0x7f2fdc000990) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:4135
#2  g_main_context_iterate (context=context@entry=0x7f2fdc000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3835
#3  0x00007f2ff542703c in g_main_context_iteration (context=0x7f2fdc000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3901
#4  0x00007f2ffc17c87c in QEventDispatcherGlib::processEvents (this=0x7f2fdc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x00007f2ffc12e5ca in QEventLoop::exec (this=this@entry=0x7f2fe9631d50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f2ffbf86c94 in QThread::exec (this=this@entry=0x7f2ffac21180 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:503
#7  0x00007f2ffabb5015 in QDBusConnectionManager::run (this=0x7f2ffac21180 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:181
#8  0x00007f2ffbf8b43c in QThreadPrivate::start (arg=0x7f2ffac21180 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:340
#9  0x00007f2ff7798434 in start_thread (arg=0x7f2fe9632700) at pthread_create.c:334
#10 0x00007f2ffb41350d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f2fdb5ef700 (LWP 15072)):
#0  g_mutex_unlock (mutex=0x7f2fd4000990) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gthread-posix.c:1350
#1  0x00007f2ff5426460 in g_main_context_prepare (context=context@entry=0x7f2fd4000990, priority=priority@entry=0x7f2fdb5eec40) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3440
#2  0x00007f2ff5426e58 in g_main_context_iterate (context=context@entry=0x7f2fd4000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3820
#3  0x00007f2ff542703c in g_main_context_iteration (context=0x7f2fd4000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3901
#4  0x00007f2ffc17c87c in QEventDispatcherGlib::processEvents (this=0x7f2fd40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x00007f2ffc12e5ca in QEventLoop::exec (this=this@entry=0x7f2fdb5eed80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f2ffbf86c94 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f2ffbf8b43c in QThreadPrivate::start (arg=0xc07900) at thread/qthread_unix.cpp:340
#8  0x00007f2ff7798434 in start_thread (arg=0x7f2fdb5ef700) at pthread_create.c:334
#9  0x00007f2ffb41350d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f2fe8e31700 (LWP 15116)):
#0  0x00007f2ffb4063cd in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2fffec6b0f in read (__nbytes=20, __buf=__buf@entry=0x7f2fe8e30c70, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  bt::Pipe::read (this=this@entry=0xb1d940, buffer=buffer@entry=0x7f2fe8e30c80 "P\326\261", max_len=max_len@entry=20) at /var/tmp/portage/net-libs/libktorrent-2.0.1/work/libktorrent-2.0.1/src/util/pipe.cpp:103
#3  0x00007f2fffed752e in net::WakeUpPipe::handleData (this=0xb1d940) at /var/tmp/portage/net-libs/libktorrent-2.0.1/work/libktorrent-2.0.1/src/net/wakeuppipe.cpp:55
#4  0x00007f2fffed8210 in net::Poll::poll (this=this@entry=0xb1d650, timeout=timeout@entry=-1) at /var/tmp/portage/net-libs/libktorrent-2.0.1/work/libktorrent-2.0.1/src/net/poll.cpp:108
#5  0x00007f2fffed52c2 in net::DownloadThread::waitForSocketReady (this=this@entry=0xb1d640) at /var/tmp/portage/net-libs/libktorrent-2.0.1/work/libktorrent-2.0.1/src/net/downloadthread.cpp:128
#6  0x00007f2fffed5376 in net::DownloadThread::update (this=0xb1d640) at /var/tmp/portage/net-libs/libktorrent-2.0.1/work/libktorrent-2.0.1/src/net/downloadthread.cpp:48
#7  0x00007f2fffed5599 in net::NetworkThread::run (this=0xb1d640) at /var/tmp/portage/net-libs/libktorrent-2.0.1/work/libktorrent-2.0.1/src/net/networkthread.cpp:48
#8  0x00007f2ffbf8b43c in QThreadPrivate::start (arg=0xb1d640) at thread/qthread_unix.cpp:340
#9  0x00007f2ff7798434 in start_thread (arg=0x7f2fe8e31700) at pthread_create.c:334
#10 0x00007f2ffb41350d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f2fd2be5700 (LWP 15117)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:65
#1  0x00007f2ffb40a3e2 in poll () at ../sysdeps/unix/syscall-template.S:84
#2  0x00007f2fffed81dc in poll (__timeout=-1, __nfds=<optimized out>, __fds=<optimized out>) at /usr/include/bits/poll2.h:46
#3  net::Poll::poll (this=this@entry=0xb1d980, timeout=timeout@entry=-1) at /var/tmp/portage/net-libs/libktorrent-2.0.1/work/libktorrent-2.0.1/src/net/poll.cpp:99
#4  0x00007f2fffed4c92 in net::UploadThread::waitForSocketsReady (this=this@entry=0xb1d970) at /var/tmp/portage/net-libs/libktorrent-2.0.1/work/libktorrent-2.0.1/src/net/uploadthread.cpp:129
#5  0x00007f2fffed4d46 in net::UploadThread::update (this=0xb1d970) at /var/tmp/portage/net-libs/libktorrent-2.0.1/work/libktorrent-2.0.1/src/net/uploadthread.cpp:45
#6  0x00007f2fffed5599 in net::NetworkThread::run (this=0xb1d970) at /var/tmp/portage/net-libs/libktorrent-2.0.1/work/libktorrent-2.0.1/src/net/networkthread.cpp:48
#7  0x00007f2ffbf8b43c in QThreadPrivate::start (arg=0xb1d970) at thread/qthread_unix.cpp:340
#8  0x00007f2ff7798434 in start_thread (arg=0x7f2fd2be5700) at pthread_create.c:334
#9  0x00007f2ffb41350d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f2fca3e4700 (LWP 15118)):
#0  pthread_cond_wait () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f2ffbf8baaa in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x15077b0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x150fc88, mutex=mutex@entry=0x150fc80, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f2fffed7c7e in net::ReverseResolverThread::run (this=0x150fc70) at /var/tmp/portage/net-libs/libktorrent-2.0.1/work/libktorrent-2.0.1/src/net/reverseresolver.cpp:124
#4  0x00007f2ffbf8b43c in QThreadPrivate::start (arg=0x150fc70) at thread/qthread_unix.cpp:340
#5  0x00007f2ff7798434 in start_thread (arg=0x7f2fca3e4700) at pthread_create.c:334
#6  0x00007f2ffb41350d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f2feca8a840 (LWP 15068)):
[KCrash Handler]
#6  bt::TorrentInterface::getDisplayName (this=0xc05080) at /usr/include/libktorrent/interfaces/torrentinterface.h:425
#7  kt::QueueManagerModel::data (this=0xe8cfe0, index=..., role=<optimized out>) at /var/tmp/portage/net-p2p/ktorrent-5.0.1/work/ktorrent-5.0.1/ktorrent/tools/queuemanagermodel.cpp:234
#8  0x00007f2ffcee6986 in QModelIndex::data (arole=0, this=0x7ffc41341970) at ../../include/QtCore/../../src/corelib/itemmodels/qabstractitemmodel.h:420
#9  QStyledItemDelegate::initStyleOption (this=0xea3c70, option=0x7ffc413417f0, index=...) at itemviews/qstyleditemdelegate.cpp:369
#10 0x00007f2ffcee56bf in QStyledItemDelegate::sizeHint (this=0xea3c70, option=..., index=...) at itemviews/qstyleditemdelegate.cpp:434
#11 0x00007f2ffce9c30f in QTreeView::indexRowSizeHint (this=this@entry=0xe5b580, index=...) at itemviews/qtreeview.cpp:3004
#12 0x00007f2ffce9ceed in QTreeViewPrivate::layout (this=this@entry=0xebc290, i=i@entry=-1, recursiveExpanding=recursiveExpanding@entry=false, afterIsUninitialized=afterIsUninitialized@entry=false) at itemviews/qtreeview.cpp:3337
#13 0x00007f2ffcea5821 in QTreeView::doItemsLayout (this=0xe5b580) at itemviews/qtreeview.cpp:2122
#14 0x00007f2ffce9ec36 in QAbstractItemViewPrivate::executePostedLayout (this=0xebc290) at ../../include/QtWidgets/5.6.0/QtWidgets/private/../../../../../src/widgets/itemviews/qabstractitemview_p.h:228
#15 QTreeViewPrivate::updateScrollBars (this=0xebc290) at itemviews/qtreeview.cpp:3668
#16 0x00007f2ffcea761d in QTreeView::updateGeometries (this=0xe5b580) at itemviews/qtreeview.cpp:2843
#17 0x00007f2ffcc5c32e in QWidget::event (this=this@entry=0xe5b580, event=event@entry=0x7ffc41342260) at kernel/qwidget.cpp:8904
#18 0x00007f2ffcd3d5be in QFrame::event (this=0xe5b580, e=0x7ffc41342260) at widgets/qframe.cpp:544
#19 0x00007f2ffce6605b in QAbstractItemView::viewportEvent (this=this@entry=0xe5b580, event=event@entry=0x7ffc41342260) at itemviews/qabstractitemview.cpp:1685
#20 0x00007f2ffcea60b0 in QTreeView::viewportEvent (this=0xe5b580, event=0x7ffc41342260) at itemviews/qtreeview.cpp:1309
#21 0x00007f2ffc12f76d in QCoreApplicationPrivate::sendThroughObjectEventFilters (receiver=receiver@entry=0xdf9f10, event=event@entry=0x7ffc41342260) at kernel/qcoreapplication.cpp:1126
#22 0x00007f2ffcc16d95 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0xdf9f10, e=0x7ffc41342260) at kernel/qapplication.cpp:3710
#23 0x00007f2ffcc1b652 in QApplication::notify (this=0x7ffc41344190, receiver=0xdf9f10, e=0x7ffc41342260) at kernel/qapplication.cpp:3495
#24 0x00007f2ffc12fa10 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0xdf9f10, event=event@entry=0x7ffc41342260) at kernel/qcoreapplication.cpp:1015
#25 0x00007f2ffcc54d02 in QCoreApplication::sendEvent (event=0x7ffc41342260, receiver=0xdf9f10) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:227
#26 QWidgetPrivate::sendPendingMoveAndResizeEvents (this=this@entry=0xe12a10, recursive=recursive@entry=false, disableUpdates=<optimized out>, disableUpdates@entry=false) at kernel/qwidget.cpp:7773
#27 0x00007f2ffcc58b36 in QWidgetPrivate::show_helper (this=this@entry=0xe12a10) at kernel/qwidget.cpp:7824
#28 0x00007f2ffcc5b8c5 in QWidget::setVisible (this=0xdf9f10, visible=<optimized out>) at kernel/qwidget.cpp:8173
#29 0x00007f2ffcc58ac0 in QWidgetPrivate::showChildren (this=this@entry=0xebc290, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:8256
#30 0x00007f2ffcc58b52 in QWidgetPrivate::show_helper (this=this@entry=0xebc290) at kernel/qwidget.cpp:7830
#31 0x00007f2ffcc5b8c5 in QWidget::setVisible (this=0xe5b580, visible=<optimized out>) at kernel/qwidget.cpp:8173
#32 0x00007f2ffcc58ac0 in QWidgetPrivate::showChildren (this=this@entry=0xe68b50, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:8256
#33 0x00007f2ffcc58b52 in QWidgetPrivate::show_helper (this=this@entry=0xe68b50) at kernel/qwidget.cpp:7830
#34 0x00007f2ffcc5b8c5 in QWidget::setVisible (this=0xe0f730, visible=<optimized out>) at kernel/qwidget.cpp:8173
#35 0x00007f2ffcc3c5cd in QStackedLayout::setCurrentIndex (this=0xe6aac0, index=0) at kernel/qstackedlayout.cpp:319
#36 0x00007f2ffcc3c814 in QStackedLayout::setCurrentWidget (this=0xe6aac0, widget=widget@entry=0xe0f730) at kernel/qstackedlayout.cpp:374
#37 0x00007f2ffcd9c931 in QStackedWidget::setCurrentWidget (this=<optimized out>, widget=widget@entry=0xe0f730) at widgets/qstackedwidget.cpp:244
#38 0x00007f300029c624 in kt::TabBarWidget::onActionTriggered (this=0xe1a9b0, act=0xe4c490) at /var/tmp/portage/net-p2p/ktorrent-5.0.1/work/ktorrent-5.0.1/libktcore/gui/tabbarwidget.cpp:205
#39 0x00007f30002a71bc in kt::TabBarWidget::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /var/tmp/portage/net-p2p/ktorrent-5.0.1/work/ktorrent-5.0.1_build/libktcore/moc_tabbarwidget.cpp:81
#40 0x00007f2ffc156f4c in QMetaObject::activate (sender=sender@entry=0xdacaa0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffc41342890) at kernel/qobject.cpp:3730
#41 0x00007f2ffc157b17 in QMetaObject::activate (sender=sender@entry=0xdacaa0, m=m@entry=0x7f30004d4380 <kt::ActionGroup::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffc41342890) at kernel/qobject.cpp:3595
#42 0x00007f30002a658f in kt::ActionGroup::actionTriggered (this=this@entry=0xdacaa0, _t1=_t1@entry=0xe4c490) at /var/tmp/portage/net-p2p/ktorrent-5.0.1/work/ktorrent-5.0.1_build/libktcore/moc_tabbarwidget.cpp:262
#43 0x00007f300029ba2b in kt::ActionGroup::toggled (this=0xdacaa0, on=<optimized out>) at /var/tmp/portage/net-p2p/ktorrent-5.0.1/work/ktorrent-5.0.1/libktcore/gui/tabbarwidget.cpp:64
#44 0x00007f30002a77a3 in kt::ActionGroup::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /var/tmp/portage/net-p2p/ktorrent-5.0.1/work/ktorrent-5.0.1_build/libktcore/moc_tabbarwidget.cpp:195
#45 0x00007f2ffc156f4c in QMetaObject::activate (sender=sender@entry=0xe4c490, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x7ffc41342aa0) at kernel/qobject.cpp:3730
#46 0x00007f2ffc157b17 in QMetaObject::activate (sender=sender@entry=0xe4c490, m=m@entry=0x7f2ffd108500 <QAction::staticMetaObject>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x7ffc41342aa0) at kernel/qobject.cpp:3595
#47 0x00007f2ffcc0cde2 in QAction::toggled (this=this@entry=0xe4c490, _t1=_t1@entry=false) at .moc/moc_qaction.cpp:382
#48 0x00007f2ffcc0fa4c in QAction::setChecked (this=0xe4c490, b=<optimized out>) at kernel/qaction.cpp:981
#49 0x00007f300029b9ef in kt::ActionGroup::toggled (this=0xdacaa0, on=<optimized out>) at /var/tmp/portage/net-p2p/ktorrent-5.0.1/work/ktorrent-5.0.1/libktcore/gui/tabbarwidget.cpp:60
#50 0x00007f30002a77a3 in kt::ActionGroup::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /var/tmp/portage/net-p2p/ktorrent-5.0.1/work/ktorrent-5.0.1_build/libktcore/moc_tabbarwidget.cpp:195
#51 0x00007f2ffc156f4c in QMetaObject::activate (sender=sender@entry=0x11971b0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x7ffc41342ce0) at kernel/qobject.cpp:3730
#52 0x00007f2ffc157b17 in QMetaObject::activate (sender=sender@entry=0x11971b0, m=m@entry=0x7f2ffd108500 <QAction::staticMetaObject>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x7ffc41342ce0) at kernel/qobject.cpp:3595
#53 0x00007f2ffcc0cde2 in QAction::toggled (this=this@entry=0x11971b0, _t1=_t1@entry=true) at .moc/moc_qaction.cpp:382
#54 0x00007f2ffcc0fa4c in QAction::setChecked (this=0x11971b0, b=<optimized out>) at kernel/qaction.cpp:981
#55 0x00007f2ffcc0fad9 in QAction::activate (this=0x11971b0, event=<optimized out>) at kernel/qaction.cpp:1160
#56 0x00007f2ffccf678d in QAbstractButtonPrivate::click (this=0x11973b0) at widgets/qabstractbutton.cpp:515
#57 0x00007f2ffccf69b4 in QAbstractButton::mouseReleaseEvent (this=0x1195c40, e=0x7ffc41343220) at widgets/qabstractbutton.cpp:1131
#58 0x00007f2ffcdc367a in QToolButton::mouseReleaseEvent (this=<optimized out>, e=<optimized out>) at widgets/qtoolbutton.cpp:609
#59 0x00007f2ffcc5be58 in QWidget::event (this=0x1195c40, event=0x7ffc41343220) at kernel/qwidget.cpp:9109
#60 0x00007f2ffccf7963 in QAbstractButton::event (this=this@entry=0x1195c40, e=e@entry=0x7ffc41343220) at widgets/qabstractbutton.cpp:1088
#61 0x00007f2ffcdc3759 in QToolButton::event (this=0x1195c40, event=0x7ffc41343220) at widgets/qtoolbutton.cpp:970
#62 0x00007f2ffcc16dbc in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x1195c40, e=0x7ffc41343220) at kernel/qapplication.cpp:3714
#63 0x00007f2ffcc1bddd in QApplication::notify (this=<optimized out>, receiver=0x1195c40, e=0x7ffc41343220) at kernel/qapplication.cpp:3272
#64 0x00007f2ffc12fa10 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x1195c40, event=event@entry=0x7ffc41343220) at kernel/qcoreapplication.cpp:1015
#65 0x00007f2ffcc1ab4c in QCoreApplication::sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:227
#66 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x1195c40, event=event@entry=0x7ffc41343220, alienWidget=alienWidget@entry=0x1195c40, nativeWidget=0x7ffc41344220, buttonDown=buttonDown@entry=0x7f2ffd137a80 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:2769
#67 0x00007f2ffcc77dea in QWidgetWindow::handleMouseEvent (this=this@entry=0xefac40, event=event@entry=0x7ffc41343640) at kernel/qwidgetwindow.cpp:554
#68 0x00007f2ffcc7a083 in QWidgetWindow::event (this=0xefac40, event=0x7ffc41343640) at kernel/qwidgetwindow.cpp:210
#69 0x00007f2ffcc16dbc in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0xefac40, e=0x7ffc41343640) at kernel/qapplication.cpp:3714
#70 0x00007f2ffcc1b652 in QApplication::notify (this=0x7ffc41344190, receiver=0xefac40, e=0x7ffc41343640) at kernel/qapplication.cpp:3495
#71 0x00007f2ffc12fa10 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0xefac40, event=event@entry=0x7ffc41343640) at kernel/qcoreapplication.cpp:1015
#72 0x00007f2ffc6baf8b in QCoreApplication::sendSpontaneousEvent (event=0x7ffc41343640, receiver=0xefac40) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:230
#73 QGuiApplicationPrivate::processMouseEvent (e=0x15573d0) at kernel/qguiapplication.cpp:1868
#74 0x00007f2ffc6bcc45 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x15573d0) at kernel/qguiapplication.cpp:1652
#75 0x00007f2ffc69d7c3 in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:645
#76 0x00007f2fec6ce6f0 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#77 0x00007f2ff5426cad in g_main_dispatch (context=0x7f2fe40016f0) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3154
#78 g_main_context_dispatch (context=context@entry=0x7f2fe40016f0) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3769
#79 0x00007f2ff5426f90 in g_main_context_iterate (context=context@entry=0x7f2fe40016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3840
#80 0x00007f2ff542703c in g_main_context_iteration (context=0x7f2fe40016f0, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3901
#81 0x00007f2ffc17c867 in QEventDispatcherGlib::processEvents (this=0xb60070, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#82 0x00007f2ffc12e5ca in QEventLoop::exec (this=this@entry=0x7ffc413439f0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#83 0x00007f2ffc1361cc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1285
#84 0x00007f2ffc6b239c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1598
#85 0x00007f2ffcc13dd5 in QApplication::exec () at kernel/qapplication.cpp:2973
#86 0x000000000042b2ac in main (argc=1, argv=<optimized out>) at /var/tmp/portage/net-p2p/ktorrent-5.0.1/work/ktorrent-5.0.1/ktorrent/main.cpp:238

Reported using DrKonqi