[konsole] [Bug 423054] Switching to tab with opened search box will crash the console

Tue Jun 16 14:38:20 BST 2020

https://bugs.kde.org/show_bug.cgi?id=423054

--- Comment #2 from Todor Petrov <tpetrov92 at gmail.com> ---
Luckily for me the application has managed to crash once again in short period.
This time I've installed additional debug symbols which I hope will shed a
little bit more light on the situation. 
This time however the problem occurred after switching back and forth between
konsole window and different application.

Here is the stack trace:

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 0x7ff7f0e82080 (LWP 74813))]

Thread 7 (Thread 0x7ff7e5980700 (LWP 74819)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x55fc5b6a3ae8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55fc5b6a3a98,
cond=0x55fc5b6a3ac0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55fc5b6a3ac0, mutex=0x55fc5b6a3a98) at
pthread_cond_wait.c:638
#3  0x00007ff7e6dff3db in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007ff7e6dfefeb in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007ff7f3d3d609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007ff7f67ca103 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7ff7e6181700 (LWP 74818)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x55fc5b6a3ae8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55fc5b6a3a98,
cond=0x55fc5b6a3ac0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55fc5b6a3ac0, mutex=0x55fc5b6a3a98) at
pthread_cond_wait.c:638
#3  0x00007ff7e6dff3db in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007ff7e6dfefeb in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007ff7f3d3d609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007ff7f67ca103 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7ff7e6982700 (LWP 74817)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x55fc5b6a3ae8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55fc5b6a3a98,
cond=0x55fc5b6a3ac0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55fc5b6a3ac0, mutex=0x55fc5b6a3a98) at
pthread_cond_wait.c:638
#3  0x00007ff7e6dff3db in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007ff7e6dfefeb in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007ff7f3d3d609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007ff7f67ca103 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7ff7ecd1a700 (LWP 74816)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x55fc5b6a3ae8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55fc5b6a3a98,
cond=0x55fc5b6a3ac0) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55fc5b6a3ac0, mutex=0x55fc5b6a3a98) at
pthread_cond_wait.c:638
#3  0x00007ff7e6dff3db in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007ff7e6dfefeb in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007ff7f3d3d609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007ff7f67ca103 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7ff7ee5af700 (LWP 74815)):
#0  0x00007ff7f4fc13a6 in socketNotifierSourceCheck (source=<optimized out>) at
kernel/qeventdispatcher_glib.cpp:94
#1  0x00007ff7f34d8be1 in g_main_context_check () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff7f34d9152 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff7f34d92e3 in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff7f4fc1583 in QEventDispatcherGlib::processEvents
(this=0x7ff7e0000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007ff7f4f684db in QEventLoop::exec (this=this at entry=0x7ff7ee5aed70,
flags=..., flags at entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007ff7f4da0785 in QThread::exec (this=<optimized out>) at
../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007ff7f44bcefa in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007ff7f4da19d2 in QThreadPrivate::start (arg=0x7ff7f453fd80) at
thread/qthread_unix.cpp:361
#9  0x00007ff7f3d3d609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#10 0x00007ff7f67ca103 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7ff7efd57700 (LWP 74814)):
#0  0x00007ff7f67bd96f in __GI___poll (fds=0x7ff7efd56ca8, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff7f3d71c1a in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ff7f3d7390a in xcb_wait_for_event () from
/usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ff7f0556298 in QXcbEventQueue::run (this=0x55fc5b5dd160) at
qxcbeventqueue.cpp:228
#4  0x00007ff7f4da19d2 in QThreadPrivate::start (arg=0x55fc5b5dd160) at
thread/qthread_unix.cpp:361
#5  0x00007ff7f3d3d609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007ff7f67ca103 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ff7f0e82080 (LWP 74813)):
[KCrash Handler]
#6  0x00007ff7f4e5ab41 in
QExplicitlySharedDataPointer<QRegularExpressionPrivate>::operator= (o=...,
this=0x28) at ../../include/QtCore/../../src/corelib/tools/qshareddata.h:199
#7  QRegularExpression::operator= (this=this at entry=0x28, re=...) at
tools/qregularexpression.cpp:1480
#8  0x00007ff7f65c73d1 in Konsole::RegExpFilter::setRegExp (this=0x0,
regExp=...) at ./src/Filter.cpp:341
#9  0x00007ff7f66106f8 in Konsole::SessionController::beginSearch
(this=this at entry=0x55fc5ba9ecb0, text=...,
direction=direction at entry=Konsole::Enum::ForwardsSearch) at
./src/SessionController.cpp:1343
#10 0x00007ff7f6610dad in Konsole::SessionController::findPreviousInHistory
(this=0x55fc5ba9ecb0) at /usr/include/c++/9/bits/atomic_base.h:413
#11 0x00007ff7f4f95458 in QtPrivate::QSlotObjectBase::call (a=0x7fff2b232cc0,
r=0x55fc5ba9ecb0, this=0x55fc5c1a13d0) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#12 QMetaObject::activate (sender=0x55fc5bbebe10, signalOffset=<optimized out>,
local_signal_index=<optimized out>, argv=<optimized out>) at
kernel/qobject.cpp:3784
#13 0x00007ff7f4f95458 in QtPrivate::QSlotObjectBase::call (a=0x7fff2b232e10,
r=0x55fc5bbebe10, this=0x55fc5c1c3dd0) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#14 QMetaObject::activate (sender=0x55fc5c18b880, signalOffset=<optimized out>,
local_signal_index=<optimized out>, argv=<optimized out>) at
kernel/qobject.cpp:3784
#15 0x00007ff7f5a78806 in QAbstractButton::clicked
(this=this at entry=0x55fc5c18b880, _t1=<optimized out>) at
.moc/moc_qabstractbutton.cpp:312
#16 0x00007ff7f5a78a2e in QAbstractButtonPrivate::emitClicked
(this=0x55fc5bcc9d50) at widgets/qabstractbutton.cpp:414
#17 0x00007ff7f5a79e73 in QAbstractButtonPrivate::click (this=0x55fc5bcc9d50)
at widgets/qabstractbutton.cpp:407
#18 0x00007ff7f5a7a035 in QAbstractButton::mouseReleaseEvent
(this=0x55fc5c18b880, e=0x7fff2b2333c0) at widgets/qabstractbutton.cpp:1011
#19 0x00007ff7f5b6d5fe in QToolButton::mouseReleaseEvent (this=<optimized out>,
e=<optimized out>) at widgets/qtoolbutton.cpp:622
#20 0x00007ff7f59c62b6 in QWidget::event (this=0x55fc5c18b880,
event=0x7fff2b2333c0) at kernel/qwidget.cpp:8981
#21 0x00007ff7f5a7b273 in QAbstractButton::event
(this=this at entry=0x55fc5c18b880, e=e at entry=0x7fff2b2333c0) at
widgets/qabstractbutton.cpp:968
#22 0x00007ff7f5b6d6a8 in QToolButton::event (this=0x55fc5c18b880,
event=0x7fff2b2333c0) at widgets/qtoolbutton.cpp:1001
#23 0x00007ff7f5983a66 in QApplicationPrivate::notify_helper
(this=this at entry=0x55fc5b5d9700, receiver=receiver at entry=0x55fc5c18b880,
e=e at entry=0x7fff2b2333c0) at kernel/qapplication.cpp:3700
#24 0x00007ff7f598d343 in QApplication::notify (this=<optimized out>,
receiver=0x55fc5c18b880, e=0x7fff2b2333c0) at kernel/qapplication.cpp:3160
#25 0x00007ff7f4f6993a in QCoreApplication::notifyInternal2
(receiver=0x55fc5c18b880, event=0x7fff2b2333c0) at
../../include/QtCore/../../src/corelib/kernel/qobject.h:142
#26 0x00007ff7f598c457 in QApplicationPrivate::sendMouseEvent
(receiver=receiver at entry=0x55fc5c18b880, event=event at entry=0x7fff2b2333c0,
alienWidget=alienWidget at entry=0x55fc5ba7ce60, nativeWidget=0x55fc5b6a5960,
buttonDown=buttonDown at entry=0x7ff7f5eb38d0 <qt_button_down>,
lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at
kernel/qapplication.cpp:2646
#27 0x00007ff7f59e235d in QWidgetWindow::handleMouseEvent (this=0x55fc5b71b610,
event=0x7fff2b233840) at /usr/include/c++/9/bits/atomic_base.h:413
#28 0x00007ff7f59e51ec in QWidgetWindow::event (event=0x7fff2b233840,
this=0x55fc5b71b610) at kernel/qwidgetwindow.cpp:289
#29 QWidgetWindow::event (this=0x55fc5b71b610, event=0x7fff2b233840) at
kernel/qwidgetwindow.cpp:232
#30 0x00007ff7f5983a66 in QApplicationPrivate::notify_helper
(this=this at entry=0x55fc5b5d9700, receiver=receiver at entry=0x55fc5b71b610,
e=e at entry=0x7fff2b233840) at kernel/qapplication.cpp:3700
#31 0x00007ff7f598d0f0 in QApplication::notify (this=0x55fc5b5d89c0,
receiver=0x55fc5b71b610, e=0x7fff2b233840) at kernel/qapplication.cpp:3446
#32 0x00007ff7f4f6993a in QCoreApplication::notifyInternal2
(receiver=0x55fc5b71b610, event=0x7fff2b233840) at
../../include/QtCore/../../src/corelib/kernel/qobject.h:142
#33 0x00007ff7f53547d3 in QGuiApplicationPrivate::processMouseEvent
(e=e at entry=0x55fc5baa5860) at kernel/qguiapplication.cpp:2107
#34 0x00007ff7f535610b in QGuiApplicationPrivate::processWindowSystemEvent
(e=e at entry=0x55fc5baa5860) at kernel/qguiapplication.cpp:1842
#35 0x00007ff7f533035b in QWindowSystemInterface::sendWindowSystemEvents
(flags=flags at entry=...) at kernel/qwindowsysteminterface.cpp:1151
#36 0x00007ff7f055732e in xcbSourceDispatch (source=<optimized out>) at
qxcbeventdispatcher.cpp:105
#37 0x00007ff7f34d8fbd in g_main_context_dispatch () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007ff7f34d9240 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007ff7f34d92e3 in g_main_context_iteration () from
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007ff7f4fc1565 in QEventDispatcherGlib::processEvents
(this=0x55fc5b656bd0, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#41 0x00007ff7f4f684db in QEventLoop::exec (this=this at entry=0x7fff2b233be0,
flags=..., flags at entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:140
#42 0x00007ff7f4f70246 in QCoreApplication::exec () at
../../include/QtCore/../../src/corelib/global/qflags.h:120
#43 0x00007ff7f53499a0 in QGuiApplication::exec () at
kernel/qguiapplication.cpp:1784
#44 0x00007ff7f59839d9 in QApplication::exec () at kernel/qapplication.cpp:2856
#45 0x00007ff7f68cd715 in kdemain (argc=<optimized out>, argv=<optimized out>)
at ./src/main.cpp:229
#46 0x00007ff7f66cf0b3 in __libc_start_main (main=0x55fc598d5060 <main>,
argc=1, argv=0x7fff2b233ea8, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7fff2b233e98) at ../csu/libc-start.c:308
#47 0x000055fc598d509e in _start ()
[Inferior 1 (process 74813) detached]

Unfortunately I couldn't see all the function parameters, so maybe I could do
something else to obtain more useful information about the crashes?

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