Bug 405407

Application: ktorrent (5.1.1)

Qt Version: 5.11.1
Frameworks Version: 5.54.0
Operating System: Linux 4.18.0-15-generic x86_64
Distribution: Ubuntu 18.10

-- Information about the crash:
- What I was doing when the application crashed:

download had finished over night, no network activity whatsoever, use the main menu, file->exit

and it crash 

no big deal, just reporting
kubuntu 18.10

-- Backtrace:
Application: KTorrent (ktorrent), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff2489b1800 (LWP 24937))]

Thread 6 (Thread 0x7ff1f7fff700 (LWP 25326)):
#0  0x00007ff24e7352eb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b06a3b0e14) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007ff24e7352eb in __pthread_cond_wait_common (abstime=0x0, mutex=0x55b06a3b0dc0, cond=0x55b06a3b0de8) at pthread_cond_wait.c:502
#2  0x00007ff24e7352eb in __pthread_cond_wait (cond=0x55b06a3b0de8, mutex=0x55b06a3b0dc0) at pthread_cond_wait.c:655
#3  0x00007ff25075243b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff25245f413 in  () at /usr/lib/x86_64-linux-gnu/libKF5Torrent.so.6
#5  0x00007ff250751c87 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff24e72f164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#7  0x00007ff25028edef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7ff2367fc700 (LWP 25309)):
#0  0x00007ff2502826d9 in __GI___poll (fds=0x7ff220003ad0, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff24c4009b1 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007ff24c3f21e0 in pa_mainloop_poll () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007ff24c3f282e in pa_mainloop_iterate () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007ff24c3f28e0 in pa_mainloop_run () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007ff24c4008f9 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007ff249a416f8 in  () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-12.2.so
#7  0x00007ff24e72f164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8  0x00007ff25028edef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7ff21ffff700 (LWP 24946)):
#0  0x00007ff24e7352eb in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55b0697b3958) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007ff24e7352eb in __pthread_cond_wait_common (abstime=0x0, mutex=0x55b0697b3908, cond=0x55b0697b3930) at pthread_cond_wait.c:502
#2  0x00007ff24e7352eb in __pthread_cond_wait (cond=0x55b0697b3930, mutex=0x55b0697b3908) at pthread_cond_wait.c:655
#3  0x00007ff224d3e46b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007ff224d3e1d7 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007ff24e72f164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6  0x00007ff25028edef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7ff237fff700 (LWP 24941)):
#0  0x00007ff25027df64 in __GI___libc_read (fd=18, buf=0x7ff237ffeb80, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007ff24d41e180 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff24d3d891f in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff24d3d8df0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff24d3d8f6c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff25094c15b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff2508f916b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff2507480b6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff250751c87 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff24e72f164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007ff25028edef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7ff245c7e700 (LWP 24939)):
#0  0x00007ff2502826d9 in __GI___poll (fds=0x7ff238037b80, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff24d3d8e46 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff24d3d8f6c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff25094c15b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff2508f916b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff2507480b6 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff2517ca545 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007ff250751c87 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff24e72f164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007ff25028edef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ff2489b1800 (LWP 24937)):
[KCrash Handler]
#6  0x00007ff25093419d in QVariant::QVariant(QString const&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x000055b06886afbc in  ()
#8  0x000055b06886cd65 in  ()
#9  0x00007ff25152a18c in QStyledItemDelegate::initStyleOption(QStyleOptionViewItem*, QModelIndex const&) const () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007ff25152979e in QStyledItemDelegate::sizeHint(QStyleOptionViewItem const&, QModelIndex const&) const () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x000055b0688707d5 in  ()
#12 0x00007ff25156d11b in QTreeView::indexRowSizeHint(QModelIndex const&) const () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007ff25156dbbd in QTreeViewPrivate::layout(int, bool, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007ff2515758a1 in QTreeView::doItemsLayout() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007ff25156fe73 in QTreeViewPrivate::updateScrollBars() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007ff25157743e in QTreeView::updateGeometries() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007ff2515069e9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007ff2509236db in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007ff25151d119 in QHeaderView::viewportEvent(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007ff2508fa1ab in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007ff2512bb491 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007ff2512c2ae0 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007ff2508fa499 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007ff2512f46c0 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007ff2512f46a8 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007ff2512f46a8 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007ff2512f46a8 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007ff2512f46a8 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007ff2512f46a8 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007ff2512f46a8 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007ff2512f46a8 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00007ff2512f4934 in QWidgetPrivate::hide_helper() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#33 0x00007ff2512f9558 in QWidget::setVisible(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#34 0x00007ff2512f4b2a in QWidgetPrivate::close_helper(QWidgetPrivate::CloseMode) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#35 0x00007ff2512f5299 in QWidget::~QWidget() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#36 0x00007ff252179da4 in KMainWindow::~KMainWindow() () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#37 0x000055b0687fc367 in  ()
#38 0x000055b0687ed7be in  ()
#39 0x00007ff25019809b in __libc_start_main (main=0x55b0687eb430, argc=1, argv=0x7ffd074f31c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd074f31b8) at ../csu/libc-start.c:308
#40 0x000055b0687ee0ca in _start ()
[Inferior 1 (process 24937) detached]

Reported using DrKonqi