Application: ktorrent (5.1.1)

Qt Version: 5.11.1
Frameworks Version: 5.50.0
Operating System: Linux 4.18.0-15-generic x86_64
Distribution: Ubuntu 18.10

-- Information about the crash:
I've opened system tray and right-clicked to choose KTorrent to exit. KTorrent was idle empty of tasks. I've only decided to close what i do not use on that moment.

-- 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 0x7f0fa2d6b840 (LWP 11088))]

Thread 5 (Thread 0x7f0f91ec3700 (LWP 11126)):
#0  0x00007f0fabcd3f6b in __pthread_mutex_unlock_full (mutex=0x55fd2925ba80, decr=<optimized out>) at pthread_mutex_unlock.c:274
#1  0x00007f0fa3dfa9ce in pa_mutex_unlock () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-12.2.so
#2  0x00007f0fa97039a3 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007f0fa96f51e0 in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f0fa96f582e in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f0fa96f58e0 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f0fa97038f9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#7  0x00007f0fa3dfb6f8 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-12.2.so
#8  0x00007f0fabcd0164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f0fad82bdef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f0f9291c700 (LWP 11109)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55fd2910f440) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55fd2910f3f0, cond=0x55fd2910f418) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55fd2910f418, mutex=0x55fd2910f3f0) at pthread_cond_wait.c:655
#3  0x00007f0fadcef43b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f0faf9db413 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Torrent.so.6
#5  0x00007f0fadceec87 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f0fabcd0164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#7  0x00007f0fad82bdef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f0f9adee700 (LWP 11093)):
#0  __GI___libc_read (fd=16, buf=0x7f0f9adedb40, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007f0fa8fd2f55 in ?? () from /usr/lib/x86_64-linux-gnu/tls/libnvidia-tls.so.340.107
#2  0x00007f0faa70a180 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0faa6c491f in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f0faa6c4df0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f0faa6c4f6c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f0fadee915b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f0fade9616b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f0fadce50b6 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f0fadceec87 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f0fabcd0164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007f0fad82bdef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f0f9bfff700 (LWP 11091)):
#0  0x00007f0fad81f6d9 in __GI___poll (fds=0x7f0f9401ee50, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0faa6c4e46 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0faa6c4f6c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0fadee915b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f0fade9616b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f0fadce50b6 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f0faed67545 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f0fadceec87 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f0fabcd0164 in start_thread (arg=<optimized out>) at pthread_create.c:486
#9  0x00007f0fad82bdef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f0fa2d6b840 (LWP 11088)):
[KCrash Handler]
#6  0x000055fd278ab02f in ?? ()
#7  0x00007f0faeac718c in QStyledItemDelegate::initStyleOption(QStyleOptionViewItem*, QModelIndex const&) const () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8  0x00007f0faeac679e in QStyledItemDelegate::sizeHint(QStyleOptionViewItem const&, QModelIndex const&) const () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007f0faeb0a11b in QTreeView::indexRowSizeHint(QModelIndex const&) const () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007f0faeb0abbd in QTreeViewPrivate::layout(int, bool, bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f0faeb128a1 in QTreeView::doItemsLayout() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f0faeb0ce73 in QTreeViewPrivate::updateScrollBars() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007f0faeb1443e in QTreeView::updateGeometries() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f0fae8971be in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f0fae939e7e in QFrame::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f0faeaab19b in QAbstractItemView::viewportEvent(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007f0faeb130fb in QTreeView::viewportEvent(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007f0fade971ab in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f0fae858491 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007f0fae85fae0 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f0fade97499 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f0fae88f29b in QWidgetPrivate::sendPendingMoveAndResizeEvents(bool, bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f0fae8931a3 in QWidgetPrivate::show_helper() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007f0fae89637b in QWidget::setVisible(bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007f0fae893158 in QWidgetPrivate::showChildren(bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007f0fae8931bf in QWidgetPrivate::show_helper() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007f0fae89637b in QWidget::setVisible(bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007f0fae893158 in QWidgetPrivate::showChildren(bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007f0fae8931bf in QWidgetPrivate::show_helper() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007f0fae893142 in QWidgetPrivate::showChildren(bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007f0fae8931bf in QWidgetPrivate::show_helper() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00007f0fae89637b in QWidget::setVisible(bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#33 0x00007f0fafd8ef0d in kt::TabBarWidget::unshrink() () from /usr/lib/x86_64-linux-gnu/libktcore.so.16
#34 0x00007f0fadec0830 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x00007f0fafd9897f in ?? () from /usr/lib/x86_64-linux-gnu/libktcore.so.16
#36 0x00007f0fadec0830 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#37 0x00007f0fae851f72 in QAction::toggled(bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#38 0x00007f0fae8543c0 in QAction::setChecked(bool) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#39 0x00007f0f98ee4fa9 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/ktorrent/ktorrent_infowidget.so
#40 0x00007f0fafd9073d in kt::PluginManager::unloadAll() () from /usr/lib/x86_64-linux-gnu/libktcore.so.16
#41 0x000055fd2787c21b in ?? ()
#42 0x00007f0fadec0830 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#43 0x00007f0fade96677 in QCoreApplication::aboutToQuit(QCoreApplication::QPrivateSignal) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#44 0x00007f0fade9a919 in QCoreApplicationPrivate::execCleanup() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#45 0x00007f0fade9e2fb in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#46 0x000055fd278797b6 in ?? ()
#47 0x00007f0fad73509b in __libc_start_main (main=0x55fd27877430, argc=2, argv=0x7ffc97797058, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc97797048) at ../csu/libc-start.c:308
#48 0x000055fd2787a0ca in _start ()
[Inferior 1 (process 11088) detached]

Possible duplicates by query: bug 400392, bug 399330, bug 398145, bug 397327, bug 395907.

Reported using DrKonqi