Bug 373674

Application: konsole (16.08.3)

Qt Version: 5.7.1
Frameworks Version: 5.28.0
Operating System: Linux 4.8.0-2-amd64 x86_64
Distribution: Debian GNU/Linux unstable (sid)

-- Information about the crash:
- What I was doing when the application crashed:

Instantaneous crash on using  ctrl-shift-o shortcut to change from a Left/Right split view to non-split view.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Konsole (konsole), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f4f6d038940 (LWP 24998))]

Thread 3 (Thread 0x7f4f690f1700 (LWP 25000)):
#0  0x00007f4f7e5fb56d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f4f75b719f6 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f4f5c003020, timeout=<optimized out>, context=0x7f4f5c000990) at ././glib/gmain.c:4228
#2  g_main_context_iterate (context=context@entry=0x7f4f5c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3924
#3  0x00007f4f75b71b0c in g_main_context_iteration (context=0x7f4f5c000990, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#4  0x00007f4f7b1f96fb in QEventDispatcherGlib::processEvents (this=0x7f4f5c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f4f7b1a307a in QEventLoop::exec (this=this@entry=0x7f4f690f0c50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007f4f7afc50d3 in QThread::exec (this=this@entry=0x7f4f7ec67d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:507
#7  0x00007f4f7ebf26d5 in QDBusConnectionManager::run (this=0x7f4f7ec67d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#8  0x00007f4f7afc9d88 in QThreadPrivate::start (arg=0x7f4f7ec67d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:368
#9  0x00007f4f7782f464 in start_thread (arg=0x7f4f690f1700) at pthread_create.c:333
#10 0x00007f4f7e6049df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 2 (Thread 0x7f4f6b071700 (LWP 24999)):
#0  0x00007f4f7e5fb56d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f4f77c54150 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f4f77c55ee9 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f4f6cd96b69 in QXcbEventReader::run (this=0x56478cea4e30) at qxcbconnection.cpp:1343
#4  0x00007f4f7afc9d88 in QThreadPrivate::start (arg=0x56478cea4e30) at thread/qthread_unix.cpp:368
#5  0x00007f4f7782f464 in start_thread (arg=0x7f4f6b071700) at pthread_create.c:333
#6  0x00007f4f7e6049df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7f4f6d038940 (LWP 24998)):
[KCrash Handler]
#6  0x00007f4f7ebb39c9 in std::__atomic_base<int>::operator-- (this=0x1000056478d206c) at /usr/include/c++/6/bits/atomic_base.h:304
#7  QAtomicOps<int>::deref<int> (_q_value=...) at ../../include/QtCore/../../src/corelib/arch/qatomic_cxx11.h:271
#8  QBasicAtomicInteger<int>::deref (this=0x1000056478d206c) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:111
#9  QDomNamedNodeMapPrivate::clearMap (this=0x56478d1a3190) at dom/qdom.cpp:3069
#10 0x00007f4f7ebb3c1a in QDomNamedNodeMapPrivate::~QDomNamedNodeMapPrivate (this=0x56478d1a3190, __in_chrg=<optimized out>) at dom/qdom.cpp:3042
#11 QDomElementPrivate::~QDomElementPrivate (this=0x56478d206270, __in_chrg=<optimized out>) at dom/qdom.cpp:4421
#12 0x00007f4f7ebb3c89 in QDomElementPrivate::~QDomElementPrivate (this=0x56478d206270, __in_chrg=<optimized out>) at dom/qdom.cpp:4422
#13 0x00007f4f7ebb290b in QDomNodePrivate::~QDomNodePrivate (this=0x56478d1b99a0, __in_chrg=<optimized out>) at dom/qdom.cpp:1482
#14 0x00007f4f7ebb3c89 in QDomElementPrivate::~QDomElementPrivate (this=0x56478d1b99a0, __in_chrg=<optimized out>) at dom/qdom.cpp:4422
#15 0x00007f4f7ebb290b in QDomNodePrivate::~QDomNodePrivate (this=0x56478d209710, __in_chrg=<optimized out>) at dom/qdom.cpp:1482
#16 0x00007f4f7ebb2aa9 in QDomDocumentPrivate::~QDomDocumentPrivate (this=0x56478d209710, __in_chrg=<optimized out>) at dom/qdom.cpp:6191
#17 0x00007f4f7db62e56 in KXMLGUIClient::~KXMLGUIClient() () from /usr/lib/x86_64-linux-gnu/libKF5XmlGui.so.5
#18 0x00007f4f7e28fc91 in Konsole::SessionController::~SessionController() () from /usr/lib/x86_64-linux-gnu/libkonsoleprivate.so.16
#19 0x00007f4f7e28fcd9 in Konsole::SessionController::~SessionController() () from /usr/lib/x86_64-linux-gnu/libkonsoleprivate.so.16
#20 0x00007f4f7b1d1b70 in QObject::event (this=0x56478d19dbc0, e=<optimized out>) at kernel/qobject.cpp:1254
#21 0x00007f4f7bd21b2c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x56478d19dbc0, e=0x56478df03190) at kernel/qapplication.cpp:3799
#22 0x00007f4f7bd292e1 in QApplication::notify (this=0x56478ce8dbe0, receiver=0x56478d19dbc0, e=0x56478df03190) at kernel/qapplication.cpp:3556
#23 0x00007f4f7b1a5090 in QCoreApplication::notifyInternal2 (receiver=0x56478d19dbc0, event=event@entry=0x56478df03190) at kernel/qcoreapplication.cpp:988
#24 0x00007f4f7b1a781d in QCoreApplication::sendEvent (event=0x56478df03190, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#25 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x56478ce8ccc0) at kernel/qcoreapplication.cpp:1649
#26 0x00007f4f7b1a7c88 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1503
#27 0x00007f4f7b1f92d3 in postEventSourceDispatch (s=0x56478ced2a20) at kernel/qeventdispatcher_glib.cpp:276
#28 0x00007f4f75b717f7 in g_main_dispatch (context=0x7f4f640016f0) at ././glib/gmain.c:3203
#29 g_main_context_dispatch (context=context@entry=0x7f4f640016f0) at ././glib/gmain.c:3856
#30 0x00007f4f75b71a60 in g_main_context_iterate (context=context@entry=0x7f4f640016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3929
#31 0x00007f4f75b71b0c in g_main_context_iteration (context=0x7f4f640016f0, may_block=may_block@entry=1) at ././glib/gmain.c:3990
#32 0x00007f4f7b1f96df in QEventDispatcherGlib::processEvents (this=0x56478cecc1f0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#33 0x00007f4f7b1a307a in QEventLoop::exec (this=this@entry=0x7ffde21cae80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
#34 0x00007f4f7b1ab7ec in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1261
#35 0x00007f4f7b77e2dc in QGuiApplication::exec () at kernel/qguiapplication.cpp:1633
#36 0x00007f4f7bd21a85 in QApplication::exec () at kernel/qapplication.cpp:2975
#37 0x00007f4f7e8e1cd8 in kdemain (argc=<optimized out>, argv=<optimized out>) at ./src/main.cpp:173
#38 0x00007f4f7e53c2b1 in __libc_start_main (main=0x56478bc09780 <main>, argc=1, argv=0x7ffde21cb148, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffde21cb138) at ../csu/libc-start.c:291
#39 0x000056478bc097ba in _start ()

Reported using DrKonqi