Bug 384077

Summary: KTorrent crashed when I delete an object from the download list
Product: [Applications] ktorrent Reporter: Oleg <olegmixeev6638>
Component: generalAssignee: Joris Guisson <joris.guisson>
Status: RESOLVED DUPLICATE    
Severity: crash CC: hic.sunt.dracones.89
Priority: NOR Keywords: drkonqi
Version: unspecified   
Target Milestone: ---   
Platform: Gentoo Packages   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: New crash information added by DrKonqi

Description Oleg 2017-08-27 14:16:22 UTC 
Application: ktorrent (5.0.1)

Qt Version: 5.7.1
Frameworks Version: 5.37.0
Operating System: Linux 4.9.34-calculate x86_64
Distribution (Platform): Gentoo Packages

-- Information about the crash:
I apologize for my English, I'm from Russia :) (part of the text has been translated by Google Translator)
- What I was doing when the application crashed:
Removed the object from the list of downloads. The object was not in the download list when I opened the application again, but the file is not deleted (often, but not always)

The crash can be reproduced sometimes.

-- Backtrace:
Application: KTorrent (ktorrent), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f06c8812800 (LWP 5687))]

Thread 7 (Thread 0x7f069bfff700 (LWP 7443)):
#0  0x00007f06c9a22285 in ?? () from /usr/lib64/pulseaudio/libpulsecommon-10.0.so
#1  0x00007f06c9a22599 in ?? () from /usr/lib64/pulseaudio/libpulsecommon-10.0.so
#2  0x00007f06c9a22e2a in ?? () from /usr/lib64/pulseaudio/libpulsecommon-10.0.so
#3  0x00007f06d03eb677 in pa_mainloop_dispatch () from /usr/lib64/libpulse.so.0
#4  0x00007f06d03eba7c in pa_mainloop_iterate () from /usr/lib64/libpulse.so.0
#5  0x00007f06d03ebb20 in pa_mainloop_run () from /usr/lib64/libpulse.so.0
#6  0x00007f06d03f9d19 in ?? () from /usr/lib64/libpulse.so.0
#7  0x00007f06c9a32f08 in ?? () from /usr/lib64/pulseaudio/libpulsecommon-10.0.so
#8  0x00007f06d41833e4 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f06d7e58dcd in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f06ad348700 (LWP 5752)):
#0  0x00007f06d418906f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f06d8ac843a in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f06dc9e6303 in ?? () from /usr/lib64/libktorrent.so.6
#3  0x00007f06d8ac7dec in ?? () from /usr/lib64/libQt5Core.so.5
#4  0x00007f06d41833e4 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f06d7e58dcd in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f06adb49700 (LWP 5751)):
#0  0x00007ffc92d0b937 in ?? ()
#1  0x00007ffc92d0bd3e in gettimeofday ()
#2  0x00007f06dc9c79be in bt::Now() () from /usr/lib64/libktorrent.so.6
#3  0x00007f06dc9e33f1 in ?? () from /usr/lib64/libktorrent.so.6
#4  0x00007f06dc9e3c39 in ?? () from /usr/lib64/libktorrent.so.6
#5  0x00007f06d8ac7dec in ?? () from /usr/lib64/libQt5Core.so.5
#6  0x00007f06d41833e4 in start_thread () from /lib64/libpthread.so.0
#7  0x00007f06d7e58dcd in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f06bf7fe700 (LWP 5750)):
#0  0x00007f06d7e5038d in poll () from /lib64/libc.so.6
#1  0x00007f06dc9e67ec in net::Poll::poll(int) () from /usr/lib64/libktorrent.so.6
#2  0x00007f06dc9e3942 in ?? () from /usr/lib64/libktorrent.so.6
#3  0x00007f06dc9e3a16 in ?? () from /usr/lib64/libktorrent.so.6
#4  0x00007f06dc9e3c39 in ?? () from /usr/lib64/libktorrent.so.6
#5  0x00007f06d8ac7dec in ?? () from /usr/lib64/libQt5Core.so.5
#6  0x00007f06d41833e4 in start_thread () from /lib64/libpthread.so.0
#7  0x00007f06d7e58dcd in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f06be5ed700 (LWP 5695)):
#0  0x00007f06d7e5038d in poll () from /lib64/libc.so.6
#1  0x00007f06d1afe88c in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f06d1afe99c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f06d8ca8f6b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f06d8c5b33a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f06d8ac3c14 in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f06d8ac7dec in ?? () from /usr/lib64/libQt5Core.so.5
#7  0x00007f06d41833e4 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f06d7e58dcd in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f06bffff700 (LWP 5692)):
#0  0x00007f06d7e5038d in poll () from /lib64/libc.so.6
#1  0x00007f06d1afe88c in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f06d1afe99c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f06d8ca8f6b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f06d8c5b33a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f06d8ac3c14 in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f06d75e5695 in ?? () from /usr/lib64/libQt5DBus.so.5
#7  0x00007f06d8ac7dec in ?? () from /usr/lib64/libQt5Core.so.5
#8  0x00007f06d41833e4 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f06d7e58dcd in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f06c8812800 (LWP 5687)):
[KCrash Handler]
#6  0x00000000004560f7 in ?? ()
#7  0x00007f06d99afd36 in QStyledItemDelegate::initStyleOption(QStyleOptionViewItem*, QModelIndex const&) const () from /usr/lib64/libQt5Widgets.so.5
#8  0x00007f06d99aeedc in QStyledItemDelegate::paint(QPainter*, QStyleOptionViewItem const&, QModelIndex const&) const () from /usr/lib64/libQt5Widgets.so.5
#9  0x00007f06d99668b4 in QTreeView::drawRow(QPainter*, QStyleOptionViewItem const&, QModelIndex const&) const () from /usr/lib64/libQt5Widgets.so.5
#10 0x00007f06d996c23f in QTreeView::drawTree(QPainter*, QRegion const&) const () from /usr/lib64/libQt5Widgets.so.5
#11 0x00007f06d9970e06 in QTreeView::paintEvent(QPaintEvent*) () from /usr/lib64/libQt5Widgets.so.5
#12 0x00007f06d9725e28 in QWidget::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#13 0x00007f06d980cfce in QFrame::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#14 0x00007f06d9932563 in QAbstractItemView::viewportEvent(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#15 0x00007f06d9971c9c in QTreeView::viewportEvent(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#16 0x00007f06d8c5c13d in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#17 0x00007f06d96ded95 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#18 0x00007f06d96e67b6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#19 0x00007f06d8c5c37a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#20 0x00007f06d971ec5a in QWidgetPrivate::sendPaintEvent(QRegion const&) () from /usr/lib64/libQt5Widgets.so.5
#21 0x00007f06d971f2a1 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#22 0x00007f06d971ff6c in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#23 0x00007f06d971fe59 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#24 0x00007f06d971ee11 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#25 0x00007f06d971ff6c in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#26 0x00007f06d971ee11 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#27 0x00007f06d971ff6c in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#28 0x00007f06d971ee11 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#29 0x00007f06d971ff6c in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#30 0x00007f06d971fe59 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#31 0x00007f06d971fe59 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#32 0x00007f06d971ee11 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#33 0x00007f06d971ff6c in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#34 0x00007f06d971ee11 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#35 0x00007f06d971ff6c in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#36 0x00007f06d971ee11 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#37 0x00007f06d971ff6c in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#38 0x00007f06d971fe59 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#39 0x00007f06d971fe59 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*, QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#40 0x00007f06d971ee11 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib64/libQt5Widgets.so.5
#41 0x00007f06d96eef02 in ?? () from /usr/lib64/libQt5Widgets.so.5
#42 0x00007f06d96ef0dd in ?? () from /usr/lib64/libQt5Widgets.so.5
#43 0x00007f06d970dd8f in QWidgetPrivate::syncBackingStore() () from /usr/lib64/libQt5Widgets.so.5
#44 0x00007f06d9725ef8 in QWidget::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#45 0x00007f06d9823e0b in QMainWindow::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#46 0x00007f06db2392d7 in KMainWindow::event(QEvent*) () from /usr/lib64/libKF5XmlGui.so.5
#47 0x00007f06db27e4c5 in KXmlGuiWindow::event(QEvent*) () from /usr/lib64/libKF5XmlGui.so.5
#48 0x00007f06d96dedbc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#49 0x00007f06d96e67b6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#50 0x00007f06d8c5c37a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#51 0x00007f06d8c5e9bb in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQt5Core.so.5
#52 0x00007f06d8ca8ed3 in ?? () from /usr/lib64/libQt5Core.so.5
#53 0x00007f06d1afe697 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#54 0x00007f06d1afe8f0 in ?? () from /usr/lib64/libglib-2.0.so.0
#55 0x00007f06d1afe99c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#56 0x00007f06d8ca8f4f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#57 0x00007f06d8c5b33a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#58 0x00007f06d8c62c0c in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#59 0x0000000000433a22 in ?? ()
#60 0x00007f06d7d916e0 in __libc_start_main () from /lib64/libc.so.6
#61 0x0000000000434489 in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 342531.

Possible duplicates by query: bug 342531.

Reported using DrKonqi
Comment 1 Christoph Feck 2017-09-17 23:36:20 UTC 

*** This bug has been marked as a duplicate of bug 384299 ***
Comment 2 Hic Sunt Dracones 2019-06-20 03:04:36 UTC 
Created attachment 121021 [details]
New crash information added by DrKonqi

ktorrent (5.1.0) using Qt 5.9.5

- What I was doing when the application crashed: deleting some torrents already done

- Unusual behavior I noticed: the application suddenly close

- Custom settings of the application: any setting values was changed, I was using the default settings

-- Backtrace (Reduced):
#7  0x00007fb45c2e205c in QStyledItemDelegate::initStyleOption(QStyleOptionViewItem*, QModelIndex const&) const () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8  0x00007fb45c2e0edc in QStyledItemDelegate::paint(QPainter*, QStyleOptionViewItem const&, QModelIndex const&) const () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007fb45c3235e2 in QTreeView::drawRow(QPainter*, QStyleOptionViewItem const&, QModelIndex const&) const () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007fb45c328b1d in QTreeView::drawTree(QPainter*, QRegion const&) const () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007fb45c32d5c5 in QTreeView::paintEvent(QPaintEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5