Bug 385543

Application: ktorrent (5.1.0)

Qt Version: 5.9.2
Frameworks Version: 5.38.0
Operating System: Linux 4.13.5-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
KTorrent crashes everytime I exit it using CTRL + Q

The crash can be reproduced every time.

-- Backtrace:
Application: KTorrent (ktorrent), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2a0baf60c0 (LWP 23033))]

Thread 4 (Thread 0x7f29b7fff700 (LWP 23052)):
#0  0x00007f2a0147438d in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f2a0686e45c in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#2  0x00007f2a0b323bcc in  () at /usr/lib/libKF5Torrent.so.6
#3  0x00007f2a0686cfcb in  () at /usr/lib/libQt5Core.so.5
#4  0x00007f2a0146e08a in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f2a05c161bf in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f29ecee8700 (LWP 23040)):
#0  0x00007f29fee045f9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f29fedd63b2 in g_main_context_query () at /usr/lib/libglib-2.0.so.0
#2  0x00007f29feddce4c in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f29feddcfae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007f2a06aabcf4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f2a06a4f48b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007f2a0686827e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f2a0686cfcb in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f2a0146e08a in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f2a05c161bf in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f29ee8fa700 (LWP 23038)):
#0  0x00007f2a05c0bcbb in poll () at /usr/lib/libc.so.6
#1  0x00007f29feddced3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f29feddcfae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f2a06aabcf4 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007f2a06a4f48b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007f2a0686827e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f2a07e86376 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007f2a0686cfcb in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f2a0146e08a in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f2a05c161bf in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f2a0baf60c0 (LWP 23033)):
[KCrash Handler]
#5  0x00007f2a06a9308d in QVariant::QVariant(QString const&) () at /usr/lib/libQt5Core.so.5
#6  0x0000562875ee010d in  ()
#7  0x0000562875ee2a7d in  ()
#8  0x00007f2a079ea381 in QStyledItemDelegate::initStyleOption(QStyleOptionViewItem*, QModelIndex const&) const () at /usr/lib/libQt5Widgets.so.5
#9  0x00007f2a079e9857 in QStyledItemDelegate::sizeHint(QStyleOptionViewItem const&, QModelIndex const&) const () at /usr/lib/libQt5Widgets.so.5
#10 0x0000562875ee9145 in  ()
#11 0x00007f2a07a2e8f6 in QTreeView::indexRowSizeHint(QModelIndex const&) const () at /usr/lib/libQt5Widgets.so.5
#12 0x00007f2a07a2f28f in QTreeViewPrivate::layout(int, bool, bool) () at /usr/lib/libQt5Widgets.so.5
#13 0x00007f2a07a374e0 in QTreeView::doItemsLayout() () at /usr/lib/libQt5Widgets.so.5
#14 0x00007f2a07a31b06 in QTreeViewPrivate::updateScrollBars() () at /usr/lib/libQt5Widgets.so.5
#15 0x00007f2a07a3909e in QTreeView::updateGeometries() () at /usr/lib/libQt5Widgets.so.5
#16 0x00007f2a079c6ff9 in  () at /usr/lib/libQt5Widgets.so.5
#17 0x00007f2a06a80c16 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#18 0x00007f2a079dd17b in QHeaderView::viewportEvent(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#19 0x00007f2a06a50d2c in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#20 0x00007f2a0776ef08 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#21 0x00007f2a07776a06 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#22 0x00007f2a06a51060 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#23 0x00007f2a077a9ace in QWidgetPrivate::hideChildren(bool) () at /usr/lib/libQt5Widgets.so.5
#24 0x00007f2a077a9ab4 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/libQt5Widgets.so.5
#25 0x00007f2a077a9ab4 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/libQt5Widgets.so.5
#26 0x00007f2a077a9ab4 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/libQt5Widgets.so.5
#27 0x00007f2a077a9ab4 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/libQt5Widgets.so.5
#28 0x00007f2a077a9ab4 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/libQt5Widgets.so.5
#29 0x00007f2a077a9ab4 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/libQt5Widgets.so.5
#30 0x00007f2a077a9ab4 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/libQt5Widgets.so.5
#31 0x00007f2a077a9da8 in QWidgetPrivate::hide_helper() () at /usr/lib/libQt5Widgets.so.5
#32 0x00007f2a077ae759 in QWidget::setVisible(bool) () at /usr/lib/libQt5Widgets.so.5
#33 0x00007f2a077aa089 in QWidgetPrivate::close_helper(QWidgetPrivate::CloseMode) () at /usr/lib/libQt5Widgets.so.5
#34 0x00007f2a077aa6f1 in QWidget::~QWidget() () at /usr/lib/libQt5Widgets.so.5
#35 0x0000562875e5e6fa in  ()
#36 0x0000562875e4cb76 in  ()
#37 0x00007f2a05b40f6a in __libc_start_main () at /usr/lib/libc.so.6
#38 0x0000562875e4d59a in _start ()

Reported using DrKonqi