Application: dolphin (17.04.1)

Qt Version: 5.7.1
Frameworks Version: 5.34.0
Operating System: Linux 4.8.0-54-generic x86_64
Distribution: KDE neon LTS User Edition 5.8

-- Information about the crash:
- What I was doing when the application crashed:
There were a few open tabs, and click a pdf file for view it with okular.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fa2d92708c0 (LWP 2287))]

Thread 4 (Thread 0x7fa2b3ab7700 (LWP 2291)):
#0  0x00007fa2d8c81b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fa2cd96138c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa2cd96149c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa2d3a0f75b in QEventDispatcherGlib::processEvents (this=0x7fa2ac0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fa2d39ba0ba in QEventLoop::exec (this=this@entry=0x7fa2b3ab6d00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007fa2d37e9f64 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:507
#6  0x00007fa2d37eeb48 in QThreadPrivate::start (arg=0x2006580) at thread/qthread_unix.cpp:368
#7  0x00007fa2cfc986ba in start_thread (arg=0x7fa2b3ab7700) at pthread_create.c:333
#8  0x00007fa2d8c8d82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fa2c2502700 (LWP 2290)):
#0  0x00007fa2d8c7d69d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fa2cd9a46f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa2cd960e74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa2cd961330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa2cd96149c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa2d3a0f75b in QEventDispatcherGlib::processEvents (this=0x7fa2b40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fa2d39ba0ba in QEventLoop::exec (this=this@entry=0x7fa2c2501cd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#7  0x00007fa2d37e9f64 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:507
#8  0x00007fa2d935b735 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007fa2d37eeb48 in QThreadPrivate::start (arg=0x7fa2d93cfd60) at thread/qthread_unix.cpp:368
#10 0x00007fa2cfc986ba in start_thread (arg=0x7fa2c2502700) at pthread_create.c:333
#11 0x00007fa2d8c8d82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fa2c42ef700 (LWP 2289)):
#0  0x00007fa2d8c81b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fa2ccc65c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fa2ccc678d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fa2c6e78d79 in QXcbEventReader::run (this=0x1bcf310) at qxcbconnection.cpp:1343
#4  0x00007fa2d37eeb48 in QThreadPrivate::start (arg=0x1bcf310) at thread/qthread_unix.cpp:368
#5  0x00007fa2cfc986ba in start_thread (arg=0x7fa2c42ef700) at pthread_create.c:333
#6  0x00007fa2d8c8d82d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fa2d92708c0 (LWP 2287)):
[KCrash Handler]
#6  0x00007fa2d6d07e68 in KFileItem::isMimeTypeKnown() const () from /usr/lib/x86_64-linux-gnu/libKF5KIOCore.so.5
#7  0x00007fa2d891e658 in DolphinView::openItemAsFolderUrl (item=..., browseThroughArchives=<optimized out>) at /workspace/build/src/views/dolphinview.cpp:1277
#8  0x00007fa2d8f9f705 in DolphinViewContainer::slotItemActivated (this=0x2370f20, item=...) at /workspace/build/src/dolphinviewcontainer.cpp:501
#9  0x00007fa2d39e71f6 in QtPrivate::QSlotObjectBase::call (a=0x7ffe83385c90, r=0x2370f20, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:101
#10 QMetaObject::activate (sender=sender@entry=0x249f100, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7ffe83385c90) at kernel/qobject.cpp:3723
#11 0x00007fa2d39e7837 in QMetaObject::activate (sender=sender@entry=0x249f100, m=m@entry=0x7fa2d8b82960 <DolphinView::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7ffe83385c90) at kernel/qobject.cpp:3602
#12 0x00007fa2d8943ef5 in DolphinView::itemActivated (this=this@entry=0x249f100, _t1=...) at /workspace/build/obj-x86_64-linux-gnu/src/moc_dolphinview.cpp:860
#13 0x00007fa2d8915901 in DolphinView::slotItemActivated (this=0x249f100, index=<optimized out>) at /workspace/build/src/views/dolphinview.cpp:814
#14 0x00007fa2d39e71f6 in QtPrivate::QSlotObjectBase::call (a=0x7ffe83385e10, r=0x249f100, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:101
#15 QMetaObject::activate (sender=sender@entry=0x24a26c0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffe83385e10) at kernel/qobject.cpp:3723
#16 0x00007fa2d39e7837 in QMetaObject::activate (sender=sender@entry=0x24a26c0, m=m@entry=0x7fa2d8b83120 <KItemListController::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffe83385e10) at kernel/qobject.cpp:3602
#17 0x00007fa2d894272e in KItemListController::itemActivated (this=this@entry=0x24a26c0, _t1=_t1@entry=2) at /workspace/build/obj-x86_64-linux-gnu/src/moc_kitemlistcontroller.cpp:415
#18 0x00007fa2d88db075 in KItemListController::mouseReleaseEvent (this=0x24a26c0, event=0x7ffe833865e0, transform=...) at /workspace/build/src/kitemviews/kitemlistcontroller.cpp:778
#19 0x00007fa2d88d9514 in KItemListController::processEvent (this=0x24a26c0, event=event@entry=0x7ffe833865e0, transform=...) at /workspace/build/src/kitemviews/kitemlistcontroller.cpp:1026
#20 0x00007fa2d88eb0a2 in KItemListView::event (this=0x24a0d00, event=0x7ffe833865e0) at /workspace/build/src/kitemviews/kitemlistview.cpp:912
#21 0x00007fa2d429aecc in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x24a0d00, e=0x7ffe833865e0) at kernel/qapplication.cpp:3799
#22 0x00007fa2d42a28c6 in QApplication::notify (this=0x7ffe83387440, receiver=0x24a0d00, e=0x7ffe833865e0) at kernel/qapplication.cpp:3556
#23 0x00007fa2d39bc0c8 in QCoreApplication::notifyInternal2 (receiver=0x24a0d00, event=0x7ffe833865e0) at kernel/qcoreapplication.cpp:988
#24 0x00007fa2d429b1ee in QCoreApplication::sendSpontaneousEvent (event=event@entry=0x7ffe833865e0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#25 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7ffe833865e0) at kernel/qapplication.cpp:4238
#26 0x00007fa2d45a2023 in QGraphicsScenePrivate::sendEvent (this=<optimized out>, item=0x24a0d10, event=0x7ffe833865e0) at graphicsview/qgraphicsscene.cpp:1246
#27 0x00007fa2d45a29d1 in QGraphicsScenePrivate::sendMouseEvent (this=0x24ab2d0, mouseEvent=0x7ffe833865e0) at graphicsview/qgraphicsscene.cpp:1324
#28 0x00007fa2d45a7a4a in QGraphicsScene::mouseReleaseEvent (this=<optimized out>, mouseEvent=0x7ffe833865e0) at graphicsview/qgraphicsscene.cpp:4098
#29 0x00007fa2d45b2f30 in QGraphicsScene::event (this=0x24ab250, event=0x7ffe833865e0) at graphicsview/qgraphicsscene.cpp:3411
#30 0x00007fa2d429aecc in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x24ab250, e=0x7ffe833865e0) at kernel/qapplication.cpp:3799
#31 0x00007fa2d42a28c6 in QApplication::notify (this=0x7ffe83387440, receiver=0x24ab250, e=0x7ffe833865e0) at kernel/qapplication.cpp:3556
#32 0x00007fa2d39bc0c8 in QCoreApplication::notifyInternal2 (receiver=0x24ab250, event=0x7ffe833865e0) at kernel/qcoreapplication.cpp:988
#33 0x00007fa2d429b1ee in QCoreApplication::sendSpontaneousEvent (event=event@entry=0x7ffe833865e0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#34 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7ffe833865e0) at kernel/qapplication.cpp:4238
#35 0x00007fa2d45ce4ec in QGraphicsView::mouseReleaseEvent (this=0x24ab290, event=0x7ffe83386b50) at graphicsview/qgraphicsview.cpp:3417
#36 0x00007fa2d42e1f38 in QWidget::event (this=this@entry=0x24ab290, event=event@entry=0x7ffe83386b50) at kernel/qwidget.cpp:9161
#37 0x00007fa2d43c900e in QFrame::event (this=0x24ab290, e=0x7ffe83386b50) at widgets/qframe.cpp:550
#38 0x00007fa2d45cf47b in QGraphicsView::viewportEvent (this=0x24ab290, event=0x7ffe83386b50) at graphicsview/qgraphicsview.cpp:2973
#39 0x00007fa2d39bbe32 in QCoreApplicationPrivate::sendThroughObjectEventFilters (receiver=receiver@entry=0x24afa40, event=event@entry=0x7ffe83386b50) at kernel/qcoreapplication.cpp:1099
#40 0x00007fa2d429aea5 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x24afa40, e=0x7ffe83386b50) at kernel/qapplication.cpp:3795
#41 0x00007fa2d42a3165 in QApplication::notify (this=<optimized out>, receiver=0x24afa40, e=0x7ffe83386b50) at kernel/qapplication.cpp:3273
#42 0x00007fa2d39bc0c8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x24afa40, event=event@entry=0x7ffe83386b50) at kernel/qcoreapplication.cpp:988
#43 0x00007fa2d42a1e8f in QCoreApplication::sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#44 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x24afa40, event=event@entry=0x7ffe83386b50, alienWidget=alienWidget@entry=0x24afa40, nativeWidget=0x236a2e0, buttonDown=buttonDown@entry=0x7fa2d479ec80 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:2771
#45 0x00007fa2d42fc236 in QWidgetWindow::handleMouseEvent (this=this@entry=0x248df50, event=event@entry=0x7ffe83386f60) at kernel/qwidgetwindow.cpp:617
#46 0x00007fa2d42fec83 in QWidgetWindow::event (this=0x248df50, event=0x7ffe83386f60) at kernel/qwidgetwindow.cpp:239
#47 0x00007fa2d429aecc in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x248df50, e=0x7ffe83386f60) at kernel/qapplication.cpp:3799
#48 0x00007fa2d42a28c6 in QApplication::notify (this=0x7ffe83387440, receiver=0x248df50, e=0x7ffe83386f60) at kernel/qapplication.cpp:3556
#49 0x00007fa2d39bc0c8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x248df50, event=event@entry=0x7ffe83386f60) at kernel/qcoreapplication.cpp:988
#50 0x00007fa2d3cff5a0 in QCoreApplication::sendSpontaneousEvent (event=0x7ffe83386f60, receiver=0x248df50) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#51 QGuiApplicationPrivate::processMouseEvent (e=0x25fcdd0) at kernel/qguiapplication.cpp:1903
#52 0x00007fa2d3d014a5 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x25fcdd0) at kernel/qguiapplication.cpp:1687
#53 0x00007fa2d3cdf32b in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:659
#54 0x00007fa2c6eaf270 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:76
#55 0x00007fa2cd961197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#56 0x00007fa2cd9613f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#57 0x00007fa2cd96149c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#58 0x00007fa2d3a0f73f in QEventDispatcherGlib::processEvents (this=0x1c01b80, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#59 0x00007fa2d39ba0ba in QEventLoop::exec (this=this@entry=0x7ffe83387300, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#60 0x00007fa2d39c26cc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1261
#61 0x00007fa2d3cf724c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1633
#62 0x00007fa2d429ae25 in QApplication::exec () at kernel/qapplication.cpp:2975
#63 0x00007fa2d8fad75a in kdemain (argc=2, argv=<optimized out>) at /workspace/build/src/main.cpp:163
#64 0x00007fa2d8ba7830 in __libc_start_main (main=0x4006b0 <main(int, char**)>, argc=2, argv=0x7ffe833875c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe833875b8) at ../csu/libc-start.c:291
#65 0x00000000004006e9 in _start ()

Reported using DrKonqi