Application: korganizer (5.9.1)

Qt Version: 5.11.1
Frameworks Version: 5.50.0
Operating System: Linux 4.15.0-36-generic x86_64
Distribution: KDE neon Developer Edition

-- Information about the crash:
Creating a todo task (just title). Tasks are synched over CalDAV.

The crash does not seem to be reproducible.

-- Backtrace:
Application: KOrganizer (korganizer), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fed4c7ac880 (LWP 19106))]

Thread 5 (Thread 0x7fed1ffff700 (LWP 19111)):
#0  0x00007fed47f920b4 in __GI___libc_read (fd=12, buf=0x7fed1fffeb10, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fed3dba8a00 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fed3db63f27 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fed3db643e0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fed3db6454c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fed48ae9a9b in QEventDispatcherGlib::processEvents (this=0x7fed14000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fed48a8ddea in QEventLoop::exec (this=this@entry=0x7fed1fffed20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#7  0x00007fed488b8b8a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#8  0x00007fed488c3aab in QThreadPrivate::start (arg=0x55dce06ec490) at thread/qthread_unix.cpp:367
#9  0x00007fed3fc386db in start_thread (arg=0x7fed1ffff700) at pthread_create.c:463
#10 0x00007fed47fa388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fed2483e700 (LWP 19109)):
#0  0x00007fed47f96bf9 in __GI___poll (fds=0x55dce11d07f0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fed3db64439 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fed3db6454c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fed48ae9a9b in QEventDispatcherGlib::processEvents (this=0x7fed18000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fed48a8ddea in QEventLoop::exec (this=this@entry=0x7fed2483dd20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007fed488b8b8a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007fed488c3aab in QThreadPrivate::start (arg=0x55dce06c2f40) at thread/qthread_unix.cpp:367
#7  0x00007fed3fc386db in start_thread (arg=0x7fed2483e700) at pthread_create.c:463
#8  0x00007fed47fa388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fed25a4f700 (LWP 19108)):
#0  0x00007fed3db6393d in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fed3db6436b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fed3db6454c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fed48ae9a9b in QEventDispatcherGlib::processEvents (this=0x7fed20000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fed48a8ddea in QEventLoop::exec (this=this@entry=0x7fed25a4ecf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#5  0x00007fed488b8b8a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:525
#6  0x00007fed47440e45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fed488c3aab in QThreadPrivate::start (arg=0x7fed476b8d60) at thread/qthread_unix.cpp:367
#8  0x00007fed3fc386db in start_thread (arg=0x7fed25a4f700) at pthread_create.c:463
#9  0x00007fed47fa388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fed2c8bf700 (LWP 19107)):
#0  0x00007fed47f96bf9 in __GI___poll (fds=0x7fed2c8bec28, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fed3d6f6747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fed3d6f836a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fed2f679129 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fed488c3aab in QThreadPrivate::start (arg=0x55dce05d8350) at thread/qthread_unix.cpp:367
#5  0x00007fed3fc386db in start_thread (arg=0x7fed2c8bf700) at pthread_create.c:463
#6  0x00007fed47fa388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fed4c7ac880 (LWP 19106)):
[KCrash Handler]
#6  0x00007fed48a6118c in QSortFilterProxyModel::parent (this=0x55dce096af90, child=...) at itemmodels/qsortfilterproxymodel.cpp:2002
#7  0x00007fed48a6126d in QSortFilterProxyModel::parent (this=<optimized out>, child=...) at itemmodels/qsortfilterproxymodel.cpp:2005
#8  0x00007fed49d65b19 in QModelIndex::parent (this=0x55dce0d24e08) at ../../include/QtCore/../../src/corelib/itemmodels/qabstractitemmodel.h:438
#9  QTreeView::drawRow (this=0x55dce096a150, painter=0x7ffd84b4c498, option=..., index=...) at itemviews/qtreeview.cpp:1621
#10 0x00007fed49d6b54d in QTreeView::drawTree (this=this@entry=0x55dce096a150, painter=painter@entry=0x7ffd84b4c498, region=...) at itemviews/qtreeview.cpp:1515
#11 0x00007fed49d6ffb5 in QTreeView::paintEvent (this=0x55dce096a150, event=0x7ffd84b4ca50) at itemviews/qtreeview.cpp:1344
#12 0x00007fed49aeeb08 in QWidget::event (this=this@entry=0x55dce096a150, event=event@entry=0x7ffd84b4ca50) at kernel/qwidget.cpp:9281
#13 0x00007fed49b9071e in QFrame::event (this=0x55dce096a150, e=0x7ffd84b4ca50) at widgets/qframe.cpp:550
#14 0x00007fed49d078eb in QAbstractItemView::viewportEvent (this=this@entry=0x55dce096a150, event=event@entry=0x7ffd84b4ca50) at itemviews/qabstractitemview.cpp:1750
#15 0x00007fed49d70ecc in QTreeView::viewportEvent (this=0x55dce096a150, event=0x7ffd84b4ca50) at itemviews/qtreeview.cpp:1326
#16 0x00007fed48a8f83d in QCoreApplicationPrivate::sendThroughObjectEventFilters (receiver=receiver@entry=0x55dce099c960, event=event@entry=0x7ffd84b4ca50) at kernel/qcoreapplication.cpp:1174
#17 0x00007fed49aafe65 in QApplicationPrivate::notify_helper (this=this@entry=0x55dce05baa70, receiver=receiver@entry=0x55dce099c960, e=e@entry=0x7ffd84b4ca50) at kernel/qapplication.cpp:3723
#18 0x00007fed49ab745f in QApplication::notify (this=0x7ffd84b4eff0, receiver=0x55dce099c960, e=0x7ffd84b4ca50) at kernel/qapplication.cpp:3486
#19 0x00007fed48a8fab8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x55dce099c960, event=event@entry=0x7ffd84b4ca50) at kernel/qcoreapplication.cpp:1048
#20 0x00007fed49ae764a in QCoreApplication::sendSpontaneousEvent (event=0x7ffd84b4ca50, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:237
#21 QWidgetPrivate::sendPaintEvent (this=this@entry=0x55dce099d590, toBePainted=...) at kernel/qwidget.cpp:5683
#22 0x00007fed49ae7e2d in QWidgetPrivate::drawWidget (this=this@entry=0x55dce099d590, pdev=pdev@entry=0x55dce0c43860, rgn=..., offset=..., flags=flags@entry=4, sharedPainter=sharedPainter@entry=0x0, backingStore=<optimized out>) at kernel/qwidget.cpp:5623
#23 0x00007fed49ae8a90 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x55dce099cf70, pdev=pdev@entry=0x55dce0c43860, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x55dce0ac3b70) at kernel/qwidget.cpp:5818
#24 0x00007fed49ae8c19 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x55dce099cf70, pdev=pdev@entry=0x55dce0c43860, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x55dce0ac3b70) at kernel/qwidget.cpp:5804
#25 0x00007fed49ae781e in QWidgetPrivate::drawWidget (this=this@entry=0x55dce099cf70, pdev=pdev@entry=0x55dce0c43860, rgn=..., offset=..., flags=flags@entry=4, sharedPainter=sharedPainter@entry=0x0, backingStore=<optimized out>) at kernel/qwidget.cpp:5674
#26 0x00007fed49ae8a90 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x55dce0968a20, pdev=pdev@entry=0x55dce0c43860, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x55dce0ac3b70) at kernel/qwidget.cpp:5818
#27 0x00007fed49ae781e in QWidgetPrivate::drawWidget (this=this@entry=0x55dce0968a20, pdev=pdev@entry=0x55dce0c43860, rgn=..., offset=..., flags=flags@entry=4, sharedPainter=sharedPainter@entry=0x0, backingStore=<optimized out>) at kernel/qwidget.cpp:5674
#28 0x00007fed49ae8a90 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x55dce0962e80, pdev=pdev@entry=0x55dce0c43860, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x55dce0ac3b70) at kernel/qwidget.cpp:5818
#29 0x00007fed49ae781e in QWidgetPrivate::drawWidget (this=this@entry=0x55dce0962e80, pdev=pdev@entry=0x55dce0c43860, rgn=..., offset=..., flags=flags@entry=4, sharedPainter=sharedPainter@entry=0x0, backingStore=<optimized out>) at kernel/qwidget.cpp:5674
#30 0x00007fed49ae8a90 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x55dce0814c00, pdev=pdev@entry=0x55dce0c43860, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x55dce0ac3b70) at kernel/qwidget.cpp:5818
#31 0x00007fed49ae781e in QWidgetPrivate::drawWidget (this=this@entry=0x55dce0814c00, pdev=pdev@entry=0x55dce0c43860, rgn=..., offset=..., flags=flags@entry=4, sharedPainter=sharedPainter@entry=0x0, backingStore=<optimized out>) at kernel/qwidget.cpp:5674
#32 0x00007fed49ae8a90 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x55dce07d2000, pdev=pdev@entry=0x55dce0c43860, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x55dce0ac3b70) at kernel/qwidget.cpp:5818
#33 0x00007fed49ae781e in QWidgetPrivate::drawWidget (this=this@entry=0x55dce07d2000, pdev=pdev@entry=0x55dce0c43860, rgn=..., offset=..., flags=flags@entry=4, sharedPainter=sharedPainter@entry=0x0, backingStore=<optimized out>) at kernel/qwidget.cpp:5674
#34 0x00007fed49ae8a90 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x55dce06e7c80, pdev=pdev@entry=0x55dce0c43860, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x55dce0ac3b70) at kernel/qwidget.cpp:5818
#35 0x00007fed49ae8c19 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x55dce06e7c80, pdev=pdev@entry=0x55dce0c43860, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x55dce0ac3b70) at kernel/qwidget.cpp:5804
#36 0x00007fed49ae8c19 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x55dce06e7c80, pdev=pdev@entry=0x55dce0c43860, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x55dce0ac3b70) at kernel/qwidget.cpp:5804
#37 0x00007fed49ae781e in QWidgetPrivate::drawWidget (this=this@entry=0x55dce06e7c80, pdev=pdev@entry=0x55dce0c43860, rgn=..., offset=..., flags=flags@entry=4, sharedPainter=sharedPainter@entry=0x0, backingStore=<optimized out>) at kernel/qwidget.cpp:5674
#38 0x00007fed49ae8a90 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x55dce067c790, pdev=pdev@entry=0x55dce0c43860, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x55dce0ac3b70) at kernel/qwidget.cpp:5818
#39 0x00007fed49ae781e in QWidgetPrivate::drawWidget (this=this@entry=0x55dce067c790, pdev=pdev@entry=0x55dce0c43860, rgn=..., offset=..., flags=flags@entry=4, sharedPainter=sharedPainter@entry=0x0, backingStore=<optimized out>) at kernel/qwidget.cpp:5674
#40 0x00007fed49ae8a90 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x55dce0611a10, pdev=pdev@entry=0x55dce0c43860, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x55dce0ac3b70) at kernel/qwidget.cpp:5818
#41 0x00007fed49ae8c19 in QWidgetPrivate::paintSiblingsRecursive (this=this@entry=0x55dce0611a10, pdev=pdev@entry=0x55dce0c43860, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x55dce0ac3b70) at kernel/qwidget.cpp:5804
#42 0x00007fed49ae781e in QWidgetPrivate::drawWidget (this=this@entry=0x55dce0611a10, pdev=0x55dce0c43860, rgn=..., offset=..., flags=flags@entry=5, sharedPainter=sharedPainter@entry=0x0, backingStore=<optimized out>) at kernel/qwidget.cpp:5674
#43 0x00007fed49abf1e6 in QWidgetBackingStore::doSync (this=this@entry=0x55dce0ac3b70) at kernel/qwidgetbackingstore.cpp:1375
#44 0x00007fed49abf425 in QWidgetBackingStore::sync (this=0x55dce0ac3b70) at kernel/qwidgetbackingstore.cpp:1156
#45 0x00007fed49ad6b6f in QWidgetPrivate::syncBackingStore (this=0x55dce0611a10) at kernel/qwidget.cpp:1953
#46 0x00007fed49aeec78 in QWidget::event (this=this@entry=0x55dce062fbc0, event=event@entry=0x55dce13b6e00) at kernel/qwidget.cpp:9220
#47 0x00007fed49bf68d0 in QMainWindow::event (this=0x55dce062fbc0, event=0x55dce13b6e00) at widgets/qmainwindow.cpp:1348
#48 0x00007fed4a92cc77 in KMainWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#49 0x00007fed4a971bb5 in KXmlGuiWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#50 0x00007fed49aafe8c in QApplicationPrivate::notify_helper (this=this@entry=0x55dce05baa70, receiver=receiver@entry=0x55dce062fbc0, e=e@entry=0x55dce13b6e00) at kernel/qapplication.cpp:3727
#51 0x00007fed49ab745f in QApplication::notify (this=0x7ffd84b4eff0, receiver=0x55dce062fbc0, e=0x55dce13b6e00) at kernel/qapplication.cpp:3486
#52 0x00007fed48a8fab8 in QCoreApplication::notifyInternal2 (receiver=0x55dce062fbc0, event=event@entry=0x55dce13b6e00) at kernel/qcoreapplication.cpp:1048
#53 0x00007fed48a925fd in QCoreApplication::sendEvent (event=0x55dce13b6e00, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#54 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x55dce05b80c0) at kernel/qcoreapplication.cpp:1745
#55 0x00007fed48a92bb8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1599
#56 0x00007fed48aea453 in postEventSourceDispatch (s=0x55dce0601a90) at kernel/qeventdispatcher_glib.cpp:276
#57 0x00007fed3db64287 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#58 0x00007fed3db644c0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#59 0x00007fed3db6454c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#60 0x00007fed48ae9a7f in QEventDispatcherGlib::processEvents (this=0x55dce0608430, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#61 0x00007fed2f703ed1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#62 0x00007fed48a8ddea in QEventLoop::exec (this=this@entry=0x7ffd84b4ef10, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#63 0x00007fed48a96fa0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1336
#64 0x000055dcdf8e5ecc in main (argc=<optimized out>, argv=<optimized out>) at ./src/main.cpp:64

Reported using DrKonqi