https://bugs.kde.org/show_bug.cgi?id=412510
Bug ID: 412510
Summary: ktorrent crashes when last torrent is deleted
Product: ktorrent
Version: unspecified
Platform: Neon Packages
OS: Linux
Status: REPORTED
Keywords: drkonqi
Severity: crash
Priority: NOR
Component: general
Assignee: joris.guis...@gmail.com
Reporter: norton.mil...@tutanota.com
Target Milestone: ---
Application: ktorrent (5.1.2)
Qt Version: 5.12.3
Frameworks Version: 5.62.0
Operating System: Linux 4.15.0-64-generic x86_64
Distribution: KDE neon User Edition 5.16
-- Information about the crash:
- What I was doing when the application crashed:
I manually removed/deleted the only/last torrent after it had finished
downloading
The crash can be reproduced every time.
-- 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 0x7f6710d03800 (LWP 14603))]
Thread 7 (Thread 0x7f66bf7fe700 (LWP 14629)):
#0 0x00007f67068699f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55af4000c4f0) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1 __pthread_cond_wait_common (abstime=0x0, mutex=0x55af4000c4a0,
cond=0x55af4000c4c8) at pthread_cond_wait.c:502
#2 __pthread_cond_wait (cond=0x55af4000c4c8, mutex=0x55af4000c4a0) at
pthread_cond_wait.c:655
#3 0x00007f670ba2ddbb in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4 0x00007f670ba2e0c9 in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5 0x00007f67105514a3 in ?? () from
/usr/lib/x86_64-linux-gnu/libKF5Torrent.so.6
#6 0x00007f670ba26c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7 0x00007f67068636db in start_thread (arg=0x7f66bf7fe700) at
pthread_create.c:463
#8 0x00007f670ad7088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 6 (Thread 0x7f66beffd700 (LWP 14628)):
#0 0x00007f670ad339d0 in __GI___nanosleep (requested_time=0x7f66beffcd60,
remaining=0x7f66beffcd60) at ../sysdeps/unix/sysv/linux/nanosleep.c:28
#1 0x00007f670bc5c70d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2 0x00007f671054e6f8 in ?? () from
/usr/lib/x86_64-linux-gnu/libKF5Torrent.so.6
#3 0x00007f671054ec99 in ?? () from
/usr/lib/x86_64-linux-gnu/libKF5Torrent.so.6
#4 0x00007f670ba26c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5 0x00007f67068636db in start_thread (arg=0x7f66beffd700) at
pthread_create.c:463
#6 0x00007f670ad7088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 5 (Thread 0x7f66be7fc700 (LWP 14627)):
#0 0x00007f670ad63bf9 in __GI___poll (fds=0x7f66a8006f40, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f6710551988 in net::Poll::poll(int) () from
/usr/lib/x86_64-linux-gnu/libKF5Torrent.so.6
#2 0x00007f671054e9da in ?? () from
/usr/lib/x86_64-linux-gnu/libKF5Torrent.so.6
#3 0x00007f671054ea76 in ?? () from
/usr/lib/x86_64-linux-gnu/libKF5Torrent.so.6
#4 0x00007f671054ec99 in ?? () from
/usr/lib/x86_64-linux-gnu/libKF5Torrent.so.6
#5 0x00007f670ba26c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6 0x00007f67068636db in start_thread (arg=0x7f66be7fc700) at
pthread_create.c:463
#7 0x00007f670ad7088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 4 (Thread 0x7f66c634b700 (LWP 14614)):
#0 0x00007f67068699f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x55af3faa18f8) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1 __pthread_cond_wait_common (abstime=0x0, mutex=0x55af3faa18a8,
cond=0x55af3faa18d0) at pthread_cond_wait.c:502
#2 __pthread_cond_wait (cond=0x55af3faa18d0, mutex=0x55af3faa18a8) at
pthread_cond_wait.c:655
#3 0x00007f66c71f223b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4 0x00007f66c71f1f67 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5 0x00007f67068636db in start_thread (arg=0x7f66c634b700) at
pthread_create.c:463
#6 0x00007f670ad7088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 3 (Thread 0x7f66f17e2700 (LWP 14607)):
#0 0x00007f670ad63bf9 in __GI___poll (fds=0x7f66e8003ce0, nfds=1,
timeout=9505) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f67046c65c9 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f67046c66dc in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f670bc5cdcb in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4 0x00007f670bbfe03a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5 0x00007f670ba254ca in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6 0x00007f670ba26c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7 0x00007f67068636db in start_thread (arg=0x7f66f17e2700) at
pthread_create.c:463
#8 0x00007f670ad7088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 2 (Thread 0x7f66f31f4700 (LWP 14605)):
#0 0x00007f670ad5f0b4 in __GI___libc_read (fd=11, buf=0x7f66f31f3b60,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1 0x00007f670470b2d0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f67046c60b7 in g_main_context_check () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f67046c6570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0x00007f67046c66dc in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5 0x00007f670bc5cdcb in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6 0x00007f670bbfe03a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7 0x00007f670ba254ca in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8 0x00007f670d115015 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9 0x00007f670ba26c72 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f67068636db in start_thread (arg=0x7f66f31f4700) at
pthread_create.c:463
#11 0x00007f670ad7088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 1 (Thread 0x7f6710d03800 (LWP 14603)):
[KCrash Handler]
#6 0x000055af3e8496e1 in ?? ()
#7 0x00007f670cc7345c in
QStyledItemDelegate::initStyleOption(QStyleOptionViewItem*, QModelIndex const&)
const () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8 0x00007f670cc722dc in QStyledItemDelegate::paint(QPainter*,
QStyleOptionViewItem const&, QModelIndex const&) const () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9 0x00007f670ccb4ee2 in QTreeView::drawRow(QPainter*, QStyleOptionViewItem
const&, QModelIndex const&) const () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007f670ccba61d in QTreeView::drawTree(QPainter*, QRegion const&) const
() from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f670ccbecd5 in QTreeView::paintEvent(QPaintEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f670ca3b9c8 in QWidget::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007f670cade7ee in QFrame::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f670cc55f43 in QAbstractItemView::viewportEvent(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#15 0x00007f670ccbfbec in QTreeView::viewportEvent(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f670bbffa9d in
QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#17 0x00007f670c9fb635 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007f670ca02b90 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007f670bbffd18 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f670ca34595 in QWidgetPrivate::sendPaintEvent(QRegion const&) ()
from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f670ca34d6d in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007f670ca359d0 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f670ca35b59 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007f670ca3475e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007f670ca359d0 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007f670ca3475e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007f670ca359d0 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007f670ca3475e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#29 0x00007f670ca359d0 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#30 0x00007f670ca35b59 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#31 0x00007f670ca35b59 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#32 0x00007f670ca3475e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#33 0x00007f670ca359d0 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#34 0x00007f670ca3475e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#35 0x00007f670ca359d0 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#36 0x00007f670ca3475e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#37 0x00007f670ca359d0 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#38 0x00007f670ca35b59 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#39 0x00007f670ca3475e in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#40 0x00007f670ca0b266 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#41 0x00007f670ca0b4a5 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#42 0x00007f670ca238bf in QWidgetPrivate::syncBackingStore() () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#43 0x00007f670ca3bb38 in QWidget::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#44 0x00007f670cb44e50 in QMainWindow::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#45 0x00007f670f88c721 in KMainWindow::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#46 0x00007f670f8d1c77 in KXmlGuiWindow::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#47 0x00007f670c9fb65c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#48 0x00007f670ca02b90 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#49 0x00007f670bbffd18 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#50 0x00007f670bc028d7 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#51 0x00007f670bc5d793 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#52 0x00007f67046c6417 in g_main_context_dispatch () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#53 0x00007f67046c6650 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#54 0x00007f67046c66dc in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#55 0x00007f670bc5cdaf in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#56 0x00007f670bbfe03a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#57 0x00007f670bc07170 in QCoreApplication::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#58 0x000055af3e81511a in ?? ()
#59 0x00007f670ac70b97 in __libc_start_main (main=0x55af3e812e40, argc=2,
argv=0x7fffdeca8598, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7fffdeca8588) at ../csu/libc-start.c:310
#60 0x000055af3e815afa in _start ()
Possible duplicates by query: bug 412324, bug 392256, bug 390315, bug 388803.
Reported using DrKonqi
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