Application: konsole (18.08.0)

Qt Version: 5.11.1
Frameworks Version: 5.49.0
Operating System: Linux 4.15.0-33-generic x86_64
Distribution: KDE neon User Edition 5.13

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

1. building a snap in a snapcraft docker container
2. detach another tab

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 0x7f36c5a228c0 (LWP 8545))]

Thread 2 (Thread 0x7f36ad772700 (LWP 8547)):
#0  0x00007f36c53da811 in __GI_ppoll (fds=fds@entry=0x7f36a00106f8, nfds=nfds@entry=1, timeout=<optimized out>, timeout@entry=0x7f36ad771b10, sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:50
#1  0x00007f36c18d1a40 in ppoll (__ss=<optimized out>, __timeout=<optimized out>, __nfds=<optimized out>, __fds=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/poll2.h:77
#2  qt_ppoll (timeout_ts=0x7f36ad771b10, nfds=1, fds=0x7f36a00106f8) at kernel/qcore_unix.cpp:112
#3  qt_safe_poll (fds=0x7f36a00106f8, nfds=1, timeout_ts=timeout_ts@entry=0x7f36ad771ba0) at kernel/qcore_unix.cpp:142
#4  0x00007f36c18d31b2 in QEventDispatcherUNIX::processEvents (this=<optimized out>, flags=...) at kernel/qeventdispatcher_unix.cpp:500
#5  0x00007f36c187d5ba in QEventLoop::exec (this=this@entry=0x7f36ad771cc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#6  0x00007f36c16b25e4 in QThread::exec (this=this@entry=0x7f36bfa30d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:525
#7  0x00007f36bf7b7f35 in QDBusConnectionManager::run (this=0x7f36bfa30d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#8  0x00007f36c16bd727 in QThreadPrivate::start (arg=0x7f36bfa30d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:367
#9  0x00007f36bcc686ba in start_thread (arg=0x7f36ad772700) at pthread_create.c:333
#10 0x00007f36c53e641d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f36c5a228c0 (LWP 8545)):
[KCrash Handler]
#6  QWeakPointer<QObject>::isNull (this=0x20000f677) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qsharedpointer_impl.h:566
#7  QPointer<Konsole::Session>::isNull (this=0x20000f677) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qpointer.h:95
#8  Konsole::SessionController::isReadOnly (this=0x20000f63f) at /workspace/build/src/SessionController.cpp:1568
#9  0x00007f36c507beef in Konsole::Vt102Emulation::sendKeyEvent (this=0x11ec9d0, event=0x7ffdb0392ea0) at /workspace/build/src/Vt102Emulation.cpp:1130
#10 0x00007f36c18ac2a6 in QtPrivate::QSlotObjectBase::call (a=0x7ffdb0392e50, r=0x11ec9d0, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:376
#11 QMetaObject::activate (sender=sender@entry=0x16b1c10, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdb0392e50) at kernel/qobject.cpp:3754
#12 0x00007f36c18ac887 in QMetaObject::activate (sender=sender@entry=0x16b1c10, m=m@entry=0x7f36c52d6e60 <Konsole::TerminalDisplay::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdb0392e50) at kernel/qobject.cpp:3633
#13 0x00007f36c5086dbf in Konsole::TerminalDisplay::keyPressedSignal (this=this@entry=0x16b1c10, _t1=_t1@entry=0x7ffdb0392ea0) at /workspace/build/obj-x86_64-linux-gnu/src/moc_TerminalDisplay.cpp:401
#14 0x00007f36c5066496 in Konsole::TerminalDisplay::inputMethodEvent (this=0x16b1c10, event=0x7ffdb0393230) at /workspace/build/src/TerminalDisplay.cpp:3387
#15 0x00007f36c291f778 in QWidget::event (this=this@entry=0x16b1c10, event=event@entry=0x7ffdb0393230) at kernel/qwidget.cpp:9281
#16 0x00007f36c5067caa in Konsole::TerminalDisplay::event (this=0x16b1c10, event=0x7ffdb0393230) at /workspace/build/src/TerminalDisplay.cpp:3672
#17 0x00007f36c28e039c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x16b1c10, e=0x7ffdb0393230) at kernel/qapplication.cpp:3727
#18 0x00007f36c28e7ab0 in QApplication::notify (this=0xaa1830, receiver=0x16b1c10, e=0x7ffdb0393230) at kernel/qapplication.cpp:3486
#19 0x00007f36c187f228 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x16b1c10, event=event@entry=0x7ffdb0393230) at kernel/qcoreapplication.cpp:1048
#20 0x00007f36ad77da57 in QCoreApplication::sendEvent (event=0x7ffdb0393230, receiver=0x16b1c10) at ../../../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#21 QIBusPlatformInputContext::commitText (this=0xb4f0e0, text=...) at qibusplatforminputcontext.cpp:288
#22 0x00007f36ad785df9 in QIBusPlatformInputContext::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qibusplatforminputcontext.cpp:126
#23 0x00007f36c18abf79 in QMetaObject::activate (sender=sender@entry=0xb19900, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdb03934a0) at kernel/qobject.cpp:3771
#24 0x00007f36c18ac887 in QMetaObject::activate (sender=sender@entry=0xb19900, m=m@entry=0x7f36ad98dd60 <QIBusInputContextProxy::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdb03934a0) at kernel/qobject.cpp:3633
#25 0x00007f36ad787fce in QIBusInputContextProxy::CommitText (_t1=..., this=0xb19900) at .moc/moc_qibusinputcontextproxy.cpp:516
#26 QIBusInputContextProxy::qt_static_metacall (_o=_o@entry=0xb19900, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=0, _a=_a@entry=0x7ffdb0393650) at .moc/moc_qibusinputcontextproxy.cpp:220
#27 0x00007f36ad7891b5 in QIBusInputContextProxy::qt_metacall (this=0xb19900, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7ffdb0393650) at .moc/moc_qibusinputcontextproxy.cpp:502
#28 0x00007f36bf7c3434 in QDBusConnectionPrivate::deliverCall (this=<optimized out>, object=<optimized out>, msg=..., metaTypes=..., slotIdx=<optimized out>) at qdbusintegrator.cpp:991
#29 0x00007f36c18acfb9 in QObject::event (this=0xb19900, e=<optimized out>) at kernel/qobject.cpp:1251
#30 0x00007f36c28e039c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0xb19900, e=0x7f36a000e340) at kernel/qapplication.cpp:3727
#31 0x00007f36c28e7ab0 in QApplication::notify (this=0xaa1830, receiver=0xb19900, e=0x7f36a000e340) at kernel/qapplication.cpp:3486
#32 0x00007f36c187f228 in QCoreApplication::notifyInternal2 (receiver=0xb19900, event=event@entry=0x7f36a000e340) at kernel/qcoreapplication.cpp:1048
#33 0x00007f36c1881e2e in QCoreApplication::sendEvent (event=0x7f36a000e340, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#34 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0xaa0ce0) at kernel/qcoreapplication.cpp:1745
#35 0x00007f36c18d2fd7 in QEventDispatcherUNIX::processEvents (this=0xb171e0, flags=flags@entry=...) at kernel/qeventdispatcher_unix.cpp:466
#36 0x00007f36b314bcad in QUnixEventDispatcherQPA::processEvents (this=<optimized out>, flags=...) at qunixeventdispatcher.cpp:68
#37 0x00007f36c187d5ba in QEventLoop::exec (this=this@entry=0x7ffdb0393b90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:214
#38 0x00007f36c18866c4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1336
#39 0x00007f36c20cbf8c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1762
#40 0x00007f36c28e02f5 in QApplication::exec () at kernel/qapplication.cpp:2901
#41 0x00007f36c56d18fe in kdemain (argc=1, argv=<optimized out>) at /workspace/build/src/main.cpp:207
#42 0x00007f36c52ff830 in __libc_start_main (main=0x4006b0 <main(int, char**)>, argc=1, argv=0x7ffdb0393ea8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffdb0393e98) at ../csu/libc-start.c:291
#43 0x00000000004006e9 in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 393414.

Reported using DrKonqi