Bug 423523

Summary:	KTorrent crash on exit
Product:	[Applications] ktorrent	Reporter:	Claudio <claudiolanconelli>
Component:	general	Assignee:	Joris Guisson <joris.guisson>
Status:	RESOLVED DUPLICATE
Severity:	crash	CC:	travneff
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	New crash information added by DrKonqi

Description Claudio 2020-06-25 23:26:50 UTC

Application: ktorrent (5.1.0)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-108-generic x86_64
Distribution: Ubuntu 18.04.4 LTS

-- Information about the crash:
- What I was doing when the application crashed:
I was in the list of all torrent files and then I closed the application from menu File->Exit but instad of exiting Ktorrent crashed.

-- 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 0x7f4a68cdf600 (LWP 5454))]

Thread 3 (Thread 0x7f4a4a3e3700 (LWP 5459)):
#0  0x00007f4a62e25bf9 in __GI___poll (fds=0x7f4a40003ce0, nfds=1, timeout=9383) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f4a5cc225c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4a5cc226dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a63d248ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f4a63cc990a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4a63ae823a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4a63aed17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4a5e7286db in start_thread (arg=0x7f4a4a3e3700) at pthread_create.c:463
#8  0x00007f4a62e3288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f4a4bdf5700 (LWP 5457)):
#0  0x00007f4a62e210b4 in __GI___libc_read (fd=11, buf=0x7f4a4bdf4b60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f4a5cc672b0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4a5cc220b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a5cc22570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4a5cc226dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4a63d248ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4a63cc990a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4a63ae823a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4a65151d45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f4a63aed17d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f4a5e7286db in start_thread (arg=0x7f4a4bdf5700) at pthread_create.c:463
#11 0x00007f4a62e3288f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f4a68cdf600 (LWP 5454)):
[KCrash Handler]
#6  0x00007f4a63b62e33 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4a63b68257 in QString::replace(QChar, QChar, Qt::CaseSensitivity) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4a64cb044d in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007f4a64cb787f in QStyledItemDelegate::displayText(QVariant const&, QLocale const&) const () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007f4a64cb94be in QStyledItemDelegate::initStyleOption(QStyleOptionViewItem*, QModelIndex const&) const () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f4a64cb85ac in QStyledItemDelegate::sizeHint(QStyleOptionViewItem const&, QModelIndex const&) const () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x000056500c116ca4 in  ()
#13 0x00007f4a64cfc3da in QTreeView::indexRowSizeHint(QModelIndex const&) const () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f4a64cfcd6e in QTreeViewPrivate::layout(int, bool, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f4a64d04cce in QTreeView::doItemsLayout() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f4a64cff365 in QTreeViewPrivate::updateScrollBars() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007f4a64d06838 in QTreeView::updateGeometries() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007f4a64c959d9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007f4a63cfa555 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f4a64cabb71 in QHeaderView::viewportEvent(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f4a63ccb5bc in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f4a64a49815 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f4a64a51104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007f4a63ccb8d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f4a64a8332a in QWidgetPrivate::hideChildren(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007f4a64a83312 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007f4a64a83312 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007f4a64a83312 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007f4a64a83312 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007f4a64a83312 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007f4a64a83312 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00007f4a64a83312 in QWidgetPrivate::hideChildren(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#33 0x00007f4a64a835f4 in QWidgetPrivate::hide_helper() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#34 0x00007f4a64a87da0 in QWidget::setVisible(bool) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#35 0x00007f4a64a838b8 in QWidgetPrivate::close_helper(QWidgetPrivate::CloseMode) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#36 0x00007f4a64a83f00 in QWidget::~QWidget() () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#37 0x00007f4a6767f73d in KMainWindow::~KMainWindow() () at /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#38 0x000056500c09fa27 in  ()
#39 0x000056500c08f032 in  ()
#40 0x00007f4a62d32b97 in __libc_start_main (main=0x56500c08cd60, argc=1, argv=0x7fffef0f21a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffef0f2198) at ../csu/libc-start.c:310
#41 0x000056500c08fa0a in _start ()

Reported using DrKonqi

Comment 1 Christoph Feck 2020-07-14 22:07:25 UTC


*** This bug has been marked as a duplicate of bug 383127 ***

Comment 2 Andrew 2022-07-28 22:44:23 UTC

Created attachment 150962 [details]
New crash information added by DrKonqi

ktorrent (22.04.1) using Qt 5.15.3

ktorrent crashed after I pressed shutdown button in KDE

-- Backtrace (Reduced):
#4  0x00007f283f2e206c in kt::PluginManager::unloadAll() () from /lib64/libktcore.so.16
#5  0x000055aebe04ff6c in kt::Core::onExit() ()
#6  0x00007f283d0dac36 in void doActivate<false>(QObject*, int, void**) () from /lib64/libQt5Core.so.5
#7  0x00007f283d0a673e in QCoreApplication::aboutToQuit(QCoreApplication::QPrivateSignal) () from /lib64/libQt5Core.so.5
#8  0x00007f283d0aaca1 in QCoreApplicationPrivate::execCleanup() () from /lib64/libQt5Core.so.5