Application: kate (17.04.3)

Qt Version: 5.9.1
Frameworks Version: 5.41.0
Operating System: Linux 4.2.0 x86_64
Distribution: Ubuntu 17.10

-- Information about the crash:
Example commands that crash the editor:
:e <random file name, kate will crash even if path is correct>
:enew
Both of them crash kate only when there is one empty file open. If I would edit that file or open an already created one, both commands will work properly. Both File->New and File->Open work alright.

The crash can be reproduced every time.

-- Backtrace:
Application: Kate (kate), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f1ceb4f41c0 (LWP 14030))]

Thread 3 (Thread 0x7f1cc9957700 (LWP 14032)):
#0  0x00007f1ce5eaa951 in __GI___poll (fds=0x7f1cc400f980, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f1cdff82169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1cdff8227c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1ce67ea49b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f1cc4000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f1ce678fe3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f1cc9956c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f1ce65af3ca in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:515
#6  0x00007f1ce6c66e45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f1ce65b429d in QThreadPrivate::start(void*) (arg=0x7f1ce6ed9d60) at thread/qthread_unix.cpp:368
#8  0x00007f1ce1c297fc in start_thread (arg=0x7f1cc9957700) at pthread_create.c:465
#9  0x00007f1ce5eb6b5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f1cd268a700 (LWP 14031)):
#0  0x00007f1ce5eaa951 in __GI___poll (fds=0x7f1cd2689bb8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f1ce204f747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f1ce205153a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f1cd4be4f09 in QXcbEventReader::run() (this=0x5575437907f0) at qxcbconnection.cpp:1322
#4  0x00007f1ce65b429d in QThreadPrivate::start(void*) (arg=0x5575437907f0) at thread/qthread_unix.cpp:368
#5  0x00007f1ce1c297fc in start_thread (arg=0x7f1cd268a700) at pthread_create.c:465
#6  0x00007f1ce5eb6b5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f1ceb4f41c0 (LWP 14030)):
[KCrash Handler]
#6  0x00007f1ceb034a30 in KateVi::InputModeManager::reset() () at /usr/lib/x86_64-linux-gnu/libKF5TextEditor.so.5
#7  0x00007f1ceb047d91 in  () at /usr/lib/x86_64-linux-gnu/libKF5TextEditor.so.5
#8  0x00007f1ceb048200 in  () at /usr/lib/x86_64-linux-gnu/libKF5TextEditor.so.5
#9  0x00007f1ceb043595 in  () at /usr/lib/x86_64-linux-gnu/libKF5TextEditor.so.5
#10 0x00007f1ceb041b56 in KateVi::EmulatedCommandBar::handleKeyPress(QKeyEvent const*) () at /usr/lib/x86_64-linux-gnu/libKF5TextEditor.so.5
#11 0x00007f1ceb0352a4 in KateVi::InputModeManager::handleKeypress(QKeyEvent const*) () at /usr/lib/x86_64-linux-gnu/libKF5TextEditor.so.5
#12 0x00007f1ceb00302c in KateViInputMode::keyPress(QKeyEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5TextEditor.so.5
#13 0x00007f1ceb0030a2 in KateViInputMode::stealKey(QKeyEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5TextEditor.so.5
#14 0x00007f1ceaf86f50 in  () at /usr/lib/x86_64-linux-gnu/libKF5TextEditor.so.5
#15 0x00007f1ce6791acc in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) (receiver=receiver@entry=0x557547fb1800, event=event@entry=0x7ffebdc42ee0) at kernel/qcoreapplication.cpp:1129
#16 0x00007f1ce7c64445 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x5575437760b0, receiver=receiver@entry=0x557547fb1800, e=e@entry=0x7ffebdc42ee0) at kernel/qapplication.cpp:3713
#17 0x00007f1ce7c6d272 in QApplication::notify(QObject*, QEvent*) (this=<optimized out>, receiver=0x557547fb1800, e=0x7ffebdc42ee0) at kernel/qapplication.cpp:3111
#18 0x00007f1ce6791de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x55754609acc0, event=0x7ffebdc42ee0) at kernel/qcoreapplication.cpp:1018
#19 0x00007f1ce7cc1fa5 in QWidgetWindow::event(QEvent*) (this=0x557545c37c10, event=0x7ffebdc42ee0) at kernel/qwidgetwindow.cpp:236
#20 0x00007f1ce7c6446c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x5575437760b0, receiver=receiver@entry=0x557545c37c10, e=e@entry=0x7ffebdc42ee0) at kernel/qapplication.cpp:3717
#21 0x00007f1ce7c6bd34 in QApplication::notify(QObject*, QEvent*) (this=0x7ffebdc435d0, receiver=0x557545c37c10, e=0x7ffebdc42ee0) at kernel/qapplication.cpp:3476
#22 0x00007f1ce6791de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=receiver@entry=0x557545c37c10, event=event@entry=0x7ffebdc42ee0) at kernel/qcoreapplication.cpp:1018
#23 0x00007f1ce74a5ab0 in QCoreApplication::sendSpontaneousEvent(QObject*, QEvent*) (event=0x7ffebdc42ee0, receiver=0x557545c37c10) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#24 0x00007f1ce74a5ab0 in QGuiApplicationPrivate::processKeyEvent(QWindowSystemInterfacePrivate::KeyEvent*) (e=0x557545b07980) at kernel/qguiapplication.cpp:2075
#25 0x00007f1ce74aaa05 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) (e=0x557545b07980) at kernel/qguiapplication.cpp:1739
#26 0x00007f1ce7483065 in QWindowSystemInterfacePrivate::handleWindowSystemEvent<QWindowSystemInterface::SynchronousDelivery>(QWindowSystemInterfacePrivate::WindowSystemEvent*) (ev=0x557545b07980) at kernel/qwindowsysteminterface.cpp:101
#27 0x00007f1ce7486428 in QWindowSystemInterface::handleShortcutEvent(QWindow*, unsigned long, int, QFlags<Qt::KeyboardModifier>, unsigned int, unsigned int, unsigned int, QString const&, bool, unsigned short) (window=window@entry=0x557545c37c10, timestamp=3605493, keyCode=16777220, modifiers=..., nativeScanCode=36, nativeVirtualKey=65293, nativeModifiers=0, text=..., autorepeat=false, count=1) at kernel/qwindowsysteminterface.cpp:364
#28 0x00007f1ce74a59b7 in QGuiApplicationPrivate::processKeyEvent(QWindowSystemInterfacePrivate::KeyEvent*) (e=0x7f1ccc00b400) at kernel/qguiapplication.cpp:2056
#29 0x00007f1ce74aaa05 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) (e=e@entry=0x7f1ccc00b400) at kernel/qguiapplication.cpp:1739
#30 0x00007f1ce7482cab in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) (flags=...) at kernel/qwindowsysteminterface.cpp:939
#31 0x00007f1cd4c475a0 in userEventSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at qeventdispatcher_glib.cpp:77
#32 0x00007f1cdff81fb7 in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f1cdff821f0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f1cdff8227c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f1ce67ea47f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x5575437d2ab0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#36 0x00007f1ce678fe3a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffebdc433d0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#37 0x00007f1ce6798da4 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1291
#38 0x0000557541cd7ce7 in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at ./kate/main.cpp:583

Reported using DrKonqi