Ubuntu
systemsettings package

systemsettings5 crashed with SIGSEGV in TouchpadConfigContainer::sizeHint()

Bug #1832099 reported by André Verwijs on 2019-06-08

This bug affects 1 person

	Status	Importance	Assigned to
Systemsettings	Fix Released	High	kde-bugs #408325
systemsettings (Ubuntu)	Confirmed	Medium	Unassigned
Eoan	Won't Fix	Medium	Unassigned

Bug Description

SYSTEM:

Operating System: Kubuntu 19.10
(Ubuntu Eoan Ermine, development branch)

KDE Plasma Version: 5.15.90
KDE Frameworks Version: 5.58.0
Qt Version: 5.12.2
Kernel Version: 5.0.0-16-generic
Kernel Linux 5.0.0-16-generic (x86_64)
Version #17-Ubuntu SMP Wed May 15 10:52:21 UTC 2019
C Library GNU C Library / (Ubuntu GLIBC 2.29-0ubuntu2) 2.29
OS Type: 64-bit
Processors: 2 × Intel® Core™2 CPU 6700 @ 2.66GHz
Memory: 5,8 GiB
graphics: GeForce GT 610
------------------------------------------------------------------------------------------

System-settings crashing when i choose "input devices" (mouse, keboard etc.)

Backtrace:
~~~~~~~~~~~~~~~~~~

Application: Systeeminstellingen (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f545c0776c0 (LWP 25783))]

Thread 6 (Thread 0x7f544933d700 (LWP 25792)):
#0 0x00007f5460690f79 in __GI___libc_read (fd=12, buf=0x7f544933cb20, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:26
#1 0x00007f545e42f6e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f545e3e87ef in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f545e3e8cc0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0x00007f545e3e8e3c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5 0x00007f5460c1e063 in QEventDispatcherGlib::processEvents (this=0x7f5440000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6 0x00007f5460bc95bb in QEventLoop::exec (this=this@entry=0x7f544933cd40, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#7 0x00007f5460a142c6 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#8 0x00007f545fd2fef5 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#9 0x00007f5460a15612 in QThreadPrivate::start (arg=0x55dcb0970870) at thread/qthread_unix.cpp:361
#10 0x00007f545ee8d182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#11 0x00007f54606a1b1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f5449d81700 (LWP 25790)):
#0 futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f5449d80bd0, expected=0, futex_word=0x55dcb08a9814) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1 __pthread_cond_wait_common (abstime=0x7f5449d80c80, mutex=0x55dcb08a97c0, cond=0x55dcb08a97e8) at pthread_cond_wait.c:533
#2 __pthread_cond_timedwait (cond=0x55dcb08a97e8, mutex=0x55dcb08a97c0, abstime=0x7f5449d80c80) at pthread_cond_wait.c:667
#3 0x00007f5460a1b6b5 in QWaitConditionPrivate::wait_relative (this=0x55dcb08a97c0, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4 QWaitConditionPrivate::wait (deadline=..., this=0x55dcb08a97c0) at thread/qwaitcondition_unix.cpp:144
#5 QWaitCondition::wait (this=<optimized out>, mutex=0x55dcb08113b0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6 0x00007f5460a1b7e6 in QWaitCondition::wait (this=this@entry=0x55dcb08a7180, mutex=mutex@entry=0x55dcb08113b0, time=<optimized out>) at thread/qwaitcondition_unix.cpp:209
#7 0x00007f5460a18de1 in QThreadPoolThread::run (this=0x55dcb08a7170) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:240
#8 0x00007f5460a15612 in QThreadPrivate::start (arg=0x55dcb08a7170) at thread/qthread_unix.cpp:361
#9 0x00007f545ee8d182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007f54606a1b1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f544a582700 (LWP 25789)):
#0 futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f544a581bd0, expected=0, futex_word=0x55dcb0768d80) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1 __pthread_cond_wait_common (abstime=0x7f544a581c80, mutex=0x55dcb0768d30, cond=0x55dcb0768d58) at pthread_cond_wait.c:533
#2 __pthread_cond_timedwait (cond=0x55dcb0768d58, mutex=0x55dcb0768d30, abstime=0x7f544a581c80) at pthread_cond_wait.c:667
#3 0x00007f5460a1b6b5 in QWaitConditionPrivate::wait_relative (this=0x55dcb0768d30, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4 QWaitConditionPrivate::wait (deadline=..., this=0x55dcb0768d30) at thread/qwaitcondition_unix.cpp:144
#5 QWaitCondition::wait (this=<optimized out>, mutex=0x55dcb08113b0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6 0x00007f5460a1b7e6 in QWaitCondition::wait (this=this@entry=0x55dcb08a9370, mutex=mutex@entry=0x55dcb08113b0, time=<optimized out>) at thread/qwaitcondition_unix.cpp:209
#7 0x00007f5460a18de1 in QThreadPoolThread::run (this=0x55dcb08a9360) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:240
#8 0x00007f5460a15612 in QThreadPrivate::start (arg=0x55dcb08a9360) at thread/qthread_unix.cpp:361
#9 0x00007f545ee8d182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007f54606a1b1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f5459a37700 (LWP 25786)):
#0 0x00007f545e433b14 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1 0x00007f545e3e8680 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f545e3e8cc0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f545e3e8e3c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0x00007f5460c1e063 in QEventDispatcherGlib::processEvents (this=0x7f544c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5 0x00007f5460bc95bb in QEventLoop::exec (this=this@entry=0x7f5459a36d30, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6 0x00007f5460a142c6 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7 0x00007f5460e96565 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#8 0x00007f5460a15612 in QThreadPrivate::start (arg=0x7f5460f16d80) at thread/qthread_unix.cpp:361
#9 0x00007f545ee8d182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#10 0x00007f54606a1b1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f545aff4700 (LWP 25785)):
#0 0x00007f5460695729 in __GI___poll (fds=0x7f545aff3c68, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f545ee4a917 in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#2 0x00007f545ee4c53a in xcb_wait_for_event () from /lib/x86_64-linux-gnu/libxcb.so.1
#3 0x00007f545b9c26a8 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4 0x00007f5460a15612 in QThreadPrivate::start (arg=0x55dcb029fc20) at thread/qthread_unix.cpp:361
#5 0x00007f545ee8d182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6 0x00007f54606a1b1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f545c0776c0 (LWP 25783)):
[KCrash Handler]
#6 0x00007f543b9e5954 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kded_touchpad.so
#7 0x00007f546164b7c2 in QWidgetItemV2::updateCacheIfNecessary (this=0x55dcb0c3c5b0) at kernel/qlayoutitem.cpp:724
#8 QWidgetItemV2::updateCacheIfNecessary (this=0x55dcb0c3c5b0) at kernel/qlayoutitem.cpp:719
#9 0x00007f546164bafd in QWidgetItemV2::maximumSize (this=0x55dcb0c3c5b0) at kernel/qlayoutitem.cpp:812
#10 QWidgetItemV2::maximumSize (this=0x55dcb0c3c5b0) at kernel/qlayoutitem.cpp:806
#11 0x00007f54616400a2 in QBoxLayoutPrivate::setupGeom (this=this@entry=0x55dcb0c3c240) at kernel/qboxlayout.cpp:289
#12 0x00007f5461640d98 in QBoxLayoutPrivate::setupGeom (this=0x55dcb0c3c240) at kernel/qboxlayout.cpp:256
#13 QBoxLayout::minimumSize (this=<optimized out>) at kernel/qboxlayout.cpp:627
#14 0x00007f546164788d in QLayout::totalMinimumSize (this=0x55dcb0c3c090) at kernel/qlayout.cpp:693
#15 0x00007f5461649594 in qSmartMinSize (w=0x55dcb0c3b860) at kernel/qlayoutengine.cpp:387
#16 0x00007f54617b5173 in QScrollAreaPrivate::updateScrollBars (this=0x55dcb0c35610) at /usr/include/c++/8/bits/atomic_base.h:390
#17 0x00007f546166a53e in QWidget::event (this=this@entry=0x55dcb095dbd0, event=event@entry=0x7ffdef7a4380) at kernel/qwidget.cpp:9096
#18 0x00007f546170e6ce in QFrame::event (this=0x55dcb095dbd0, e=0x7ffdef7a4380) at widgets/qframe.cpp:550
#19 0x00007f5460bca5fb in QCoreApplicationPrivate::sendThroughObjectEventFilters (event=<optimized out>, receiver=<optimized out>) at kernel/qcoreapplication.cpp:1186
#20 QCoreApplicationPrivate::sendThroughObjectEventFilters (receiver=receiver@entry=0x55dcb095d660, event=event@entry=0x7ffdef7a4380) at kernel/qcoreapplication.cpp:1175
#21 0x00007f546162a541 in QApplicationPrivate::notify_helper (this=this@entry=0x55dcb027eac0, receiver=receiver@entry=0x55dcb095d660, e=e@entry=0x7ffdef7a4380) at kernel/qapplication.cpp:3728
#22 0x00007f5461631930 in QApplication::notify (this=0x7ffdef7a5440, receiver=0x55dcb095d660, e=0x7ffdef7a4380) at kernel/qapplication.cpp:3483
#23 0x00007f5460bca8e9 in QCoreApplication::notifyInternal2 (receiver=0x55dcb095d660, event=0x7ffdef7a4380) at ../../include/QtCore/5.12.2/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:322
#24 0x00007f54616626c6 in QWidgetPrivate::sendPendingMoveAndResizeEvents (this=0x55dcb0c36630, recursive=<optimized out>, disableUpdates=<optimized out>) at kernel/qwidget.cpp:7962
#25 0x00007f5461662629 in QWidgetPrivate::sendPendingMoveAndResizeEvents (this=0x55dcb0c35610, recursive=<optimized out>, disableUpdates=<optimized out>) at ../../include/QtWidgets/../../src/widgets/kernel/qwidget.h:131
#26 0x00007f5461662629 in QWidgetPrivate::sendPendingMoveAndResizeEvents (this=0x55dcb0688f60, recursive=<optimized out>, disableUpdates=<optimized out>) at ../../include/QtWidgets/../../src/widgets/kernel/qwidget.h:131
#27 0x00007f5461662629 in QWidgetPrivate::sendPendingMoveAndResizeEvents (this=0x55dcb04ae480, recursive=<optimized out>, disableUpdates=<optimized out>) at ../../include/QtWidgets/../../src/widgets/kernel/qwidget.h:131
#28 0x00007f5461662629 in QWidgetPrivate::sendPendingMoveAndResizeEvents (this=0x55dcb03df9b0, recursive=<optimized out>, disableUpdates=<optimized out>) at ../../include/QtWidgets/../../src/widgets/kernel/qwidget.h:131
#29 0x00007f5461662629 in QWidgetPrivate::sendPendingMoveAndResizeEvents (this=0x55dcb026f610, recursive=recursive@entry=true, disableUpdates=<optimized out>, disableUpdates@entry=true) at ../../include/QtWidgets/../../src/widgets/kernel/qwidget.h:131
#30 0x00007f5461666817 in QWidgetPrivate::prepareToRender (this=this@entry=0x55dcb026f610, region=..., renderFlags=..., renderFlags@entry=...) at ../../include/QtWidgets/../../src/widgets/kernel/qwidget.h:131
#31 0x00007f5461666ed6 in QWidget::render (this=<optimized out>, painter=0x7ffdef7a4838, targetOffset=..., sourceRegion=..., renderFlags=...) at kernel/qwidget.cpp:5156
#32 0x00007f5459af98f4 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/styles/oxygen.so
#33 0x00007f5459af8d25 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/styles/oxygen.so
#34 0x00007f5459ae229a in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/styles/oxygen.so
#35 0x00007f5460bf4426 in QMetaObject::activate (sender=0x55dcb07f8c70, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3793
#36 0x00007f5461724451 in QComboBox::currentIndexChanged (this=this@entry=0x55dcb07f8c70, _t1=<optimized out>) at .moc/moc_qcombobox.cpp:509
#37 0x00007f5461726483 in QComboBoxPrivate::_q_emitCurrentIndexChanged (this=this@entry=0x55dcb04997d0, index=...) at ../../include/QtCore/../../src/corelib/itemmodels/qabstractitemmodel.h:62
#38 0x00007f5461728a9b in QComboBoxPrivate::setCurrentIndex (this=this@entry=0x55dcb04997d0, mi=...) at widgets/qcombobox.cpp:2192
#39 0x00007f5461728cb1 in QComboBox::setCurrentIndex (this=<optimized out>, index=66) at widgets/qcombobox.cpp:2154
#40 0x00007f544a890c58 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kcm_keyboard.so
#41 0x00007f544a89364e in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kcm_keyboard.so
#42 0x00007f544a88f146 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kcm_keyboard.so
#43 0x00007f5461f8c5d9 in KCModule::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at ./obj-x86_64-linux-gnu/src/KF5ConfigWidgets_autogen/EWIEGA46WW/moc_kcmodule.cpp:110
#44 0x00007f5460bf4ca2 in QObject::event (this=this@entry=0x55dcb075f0c0, e=e@entry=0x55dcb07bc390) at kernel/qobject.cpp:1260
#45 0x00007f5461669feb in QWidget::event (this=0x55dcb075f0c0, event=0x55dcb07bc390) at kernel/qwidget.cpp:9383
#46 0x00007f546162a551 in QApplicationPrivate::notify_helper (this=this@entry=0x55dcb027eac0, receiver=receiver@entry=0x55dcb075f0c0, e=e@entry=0x55dcb07bc390) at kernel/qapplication.cpp:3736
#47 0x00007f5461631930 in QApplication::notify (this=0x7ffdef7a5440, receiver=0x55dcb075f0c0, e=0x55dcb07bc390) at kernel/qapplication.cpp:3483
#48 0x00007f5460bca8e9 in QCoreApplication::notifyInternal2 (receiver=0x55dcb075f0c0, event=0x55dcb07bc390) at ../../include/QtCore/5.12.2/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:322
#49 0x00007f5460bcd927 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55dcb0276000) at kernel/qcoreapplication.cpp:1799
#50 0x00007f5460c1ea43 in postEventSourceDispatch (s=0x55dcb0343f90) at kernel/qeventdispatcher_glib.cpp:276
#51 0x00007f545e3e8b0e in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#52 0x00007f545e3e8da8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#53 0x00007f545e3e8e3c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#54 0x00007f5460c1e047 in QEventDispatcherGlib::processEvents (this=0x55dcb033bea0, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#55 0x00007f5460bc95bb in QEventLoop::exec (this=this@entry=0x7ffdef7a5360, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#56 0x00007f5460bd15e2 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#57 0x000055dcafa3c639 in ?? ()
#58 0x00007f54605aab6b in __libc_start_main (main=0x55dcafa3c250, argc=1, argv=0x7ffdef7a5588, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffdef7a5578) at ../csu/libc-start.c:308
#59 0x000055dcafa3c6ba in _start ()
[Inferior 1 (process 25783) detached]

ProblemType: Crash
DistroRelease: Ubuntu 19.10
Package: systemsettings 4:5.15.90-0ubuntu1
ProcVersionSignature: Ubuntu 5.0.0-16.17-generic 5.0.8
Uname: Linux 5.0.0-16-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu2
Architecture: amd64
CurrentDesktop: KDE
Date: Sat Jun 8 18:02:55 2019
ExecutablePath: /usr/bin/systemsettings5
InstallationDate: Installed on 2019-06-02 (6 days ago)
InstallationMedia: Kubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190531)
ProcCmdline: /bin/systemsettings5
ProcEnviron:
LANGUAGE=nl
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=nl_NL.UTF-8
SHELL=/bin/bash
Signal: 11
SourcePackage: systemsettings
StacktraceTop:
?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/kded_touchpad.so
QWidgetItemV2::updateCacheIfNecessary (this=0x556844cfcf40) at kernel/qlayoutitem.cpp:724
QWidgetItemV2::updateCacheIfNecessary (this=0x556844cfcf40) at kernel/qlayoutitem.cpp:719
QWidgetItemV2::maximumSize (this=0x556844cfcf40) at kernel/qlayoutitem.cpp:812
QWidgetItemV2::maximumSize (this=0x556844cfcf40) at kernel/qlayoutitem.cpp:806
Title: systemsettings5 crashed with SIGSEGV in QWidgetItemV2::updateCacheIfNecessary()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
separator:

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Revision history for this message

In KDE Bug Tracking System #407783, Darin Miller (darinmiller) wrote on 2019-05-21:

SUMMARY
Touchpad crashes when selected System Setting -> Input -> touchpad or launching touchpad directly via krunner on a desktop system that does not have a touchpad

STEPS TO REPRODUCE
1. On a desktop that does not have a touchpad, select System Setting -> Input -> Touchpad

OBSERVED RESULT
System settings crashes immediately.

EXPECTED RESULT
"Greyed out" Touchpad options and system settings not crashing.

SOFTWARE/OS VERSIONS
Operating System: Kubuntu 19.04
KDE Plasma Version: 5.15.90
KDE Frameworks Version: 5.58.0
Qt Version: 5.12.2
Kernel Version: 5.0.0-15-generic
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-4771 CPU @ 3.50GHz
Memory: 15.5 GiB of RAM

ADDITIONAL INFORMATION:

Crash report: https://paste.ubuntu.com/p/tZCXq6HhBH/

Revision history for this message

In KDE Bug Tracking System #407783, Rik Mills (rikmills) wrote on 2019-05-21:

Also reproducible in KDE Neon testing edition.

Revision history for this message

In KDE Bug Tracking System #407783, Rik Mills (rikmills) wrote on 2019-05-21:

Download full text (14.9 KiB)

Thread 1 (Thread 0x7f35a92b46c0 (LWP 5549)):
[KCrash Handler]
#6  0x00007f358807a954 in TouchpadConfigContainer::sizeHint (this=<optimized out>) at ./kcms/touchpad/src/kcm/touchpadconfigcontainer.cpp:70
#7  0x00007f35ae8817c2 in QWidgetItemV2::updateCacheIfNecessary (this=0x55cdb8dcacf0) at kernel/qlayoutitem.cpp:724
#8  QWidgetItemV2::updateCacheIfNecessary (this=0x55cdb8dcacf0) at kernel/qlayoutitem.cpp:719
#9  0x00007f35ae881afd in QWidgetItemV2::maximumSize (this=0x55cdb8dcacf0) at kernel/qlayoutitem.cpp:812
#10 QWidgetItemV2::maximumSize (this=0x55cdb8dcacf0) at kernel/qlayoutitem.cpp:806
#11 0x00007f35ae8760a2 in QBoxLayoutPrivate::setupGeom (this=this@entry=0x55cdb9628170) at kernel/qboxlayout.cpp:289
#12 0x00007f35ae876d48 in QBoxLayoutPrivate::setupGeom (this=0x55cdb9628170) at kernel/qboxlayout.cpp:256
#13 QBoxLayout::sizeHint (this=<optimized out>) at kernel/qboxlayout.cpp:616
#14 0x00007f35ae87d8d7 in QLayout::totalSizeHint (this=0x55cdb9701120) at kernel/qlayout.cpp:719
#15 0x00007f35ae9eabaa in QScrollArea::sizeHint (this=<optimized out>) at /usr/include/c++/8/bits/atomic_base.h:390
#16 0x00007f35ae8835b2 in QStackedLayout::sizeHint (this=<optimized out>) at kernel/qstackedlayout.cpp:444
#17 0x00007f35ae87d8d7 in QLayout::totalSizeHint (this=0x55cdb7c25a40) at kernel/qlayout.cpp:719
#18 0x00007f35ae8817c2 in QWidgetItemV2::updateCacheIfNecessary (this=0x55cdb7c286f0) at kernel/qlayoutitem.cpp:724
#19 QWidgetItemV2::updateCacheIfNecessary (this=0x55cdb7c286f0) at kernel/qlayoutitem.cpp:719
#20 0x00007f35ae881aad in QWidgetItemV2::minimumSize (this=0x55cdb7c286f0) at kernel/qlayoutitem.cpp:799
#21 QWidgetItemV2::minimumSize (this=0x55cdb7c286f0) at kernel/qlayoutitem.cpp:793
#22 0x00007f35ae87a20d in QGridBox::minimumSize (this=0x55cdb7c28490) at kernel/qgridlayout.cpp:74
#23 QGridLayoutPrivate::setupLayoutData (this=this@entry=0x55cdb7c25500, hSpacing=hSpacing@entry=6, vSpacing=vSpacing@entry=6) at kernel/qgridlayout.cpp:810
#24 0x00007f35ae87b523 in QGridLayoutPrivate::distribute (this=this@entry=0x55cdb7c25500, r=..., hSpacing=6, vSpacing=vSpacing@entry=6) at kernel/qgridlayout.cpp:940
#25 0x00007f35ae87c322 in QGridLayout::setGeometry (this=0x55cdb7c254b0, rect=...) at kernel/qgridlayout.cpp:1385
#26 0x00007f35ae87d738 in QLayoutPrivate::doResize (this=this@entry=0x55cdb7c25500, r=...) at ../../include/QtCore/../../src/corelib/tools/qrect.h:184
#27 0x00007f35ae87e7c9 in QLayout::activate (this=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qsize.h:119
#28 0x00007f35ae89f61f in QWidgetPrivate::setVisible (this=0x55cdb8ef55a0, visible=<optimized out>) at ../../include/QtWidgets/../../src/widgets/kernel/qwidget.h:131
#29 0x00007f35ae883bb6 in QStackedLayout::setCurrentIndex (this=0x55cdb7c25a40, index=1) at kernel/qstackedlayout.cpp:321
#30 0x00007f35ae883e58 in QStackedLayout::setCurrentWidget (this=0x55cdb7c25a40, widget=widget@entry=0x55cdb96c96e0) at kernel/qstackedlayout.cpp:376
#31 0x00007f35aea007c5 in QStackedWidget::setCurrentWidget (this=<optimized out>, widget=0x55cdb96c96e0) at widgets/qstackedwidget.cpp:248
#32 0x00007f35af0b9125 in KPageViewPrivate::_k_pageSelected (previous=..., index=..., this=0x55cdb7c25270) at ./src/kpageview.cpp:247
#33 KPageViewPrivate::_k_pageSelected (this=0x55cdb7c25270, index=..., previous=...) at ./src/kpageview.cpp:221
#34 0x00007f35ade2a426 in QMetaObject::activate (sender=0x55cdb7c36b50, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3793
#35 0x00007f35addc0108 in QItemSelectionModel::selectionChanged (this=this@entry=0x55cdb7c36b50, _t1=..., _t2=...) at .moc/moc_qitemselectionmodel.cpp:458
#36 0x00007f35addc89b4 in QItemSelectionModel::emitSelectionChanged (this=0x55cdb7c36b50, newSelection=..., oldSelection=...) at itemmodels/qitemselectionmodel.cpp:1871
#37 0x00007f35addc901b in QItemSelectionModel::select (this=0x55cdb7c36b50, selection=..., command=...) at itemmodels/qitemselectionmodel.cpp:1338
#38 0x00007f35addc2eac in QItemSelectionModel::select (this=this@entry=0x55cdb7c36b50, index=..., command=command@entry=...) at itemmodels/qitemselectionmodel.cpp:1188
#39 0x00007f35addc04dc in QItemSelectionModel::setCurrentIndex (this=this@entry=0x55cdb7c36b50, index=..., command=command@entry=...) at itemmodels/qitemselectionmodel.cpp:1413
#40 0x00007f35af0b81e7 in KPageViewPrivate::updateSelection (this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractitemmodel.h:60
#41 KPageViewPrivate::updateSelection (this=<optimized out>) at ./src/kpageview.cpp:95
#42 0x00007f35af0b8f52 in KPageViewPrivate::_k_modelChanged (this=0x55cdb7c25270) at ./src/kpageview.cpp:218
#43 0x00007f35ade2a426 in QMetaObject::activate (sender=0x55cdb7c28f00, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3793
#44 0x00007f35addb29e6 in QAbstractItemModel::layoutChanged (this=this@entry=0x55cdb7c28f00, _t1=..., _t2=<optimized out>, _t2@entry=QAbstractItemModel::NoLayoutChangeHint) at .moc/moc_qabstractitemmodel.cpp:570
#45 0x00007f35af0bf19b in KPageWidgetModel::addPage (this=0x55cdb7c28f00, item=item@entry=0x55cdb965df50) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:151
#46 0x00007f35af0bdd9d in KPageWidget::addPage (this=<optimized out>, item=item@entry=0x55cdb965df50) at ./src/kpagewidget_p.h:35
#47 0x00007f35af3ca53c in ModuleView::addModule (this=this@entry=0x55cdb7c24e20, module=0x55cdb7c1d018) at ./core/ModuleView.cpp:198
#48 0x00007f35af3ca943 in ModuleView::loadModule (this=this@entry=0x55cdb7c24e20, menuItem=...) at ./core/ModuleView.cpp:151
#49 0x00007f3595e9d9e1 in SidebarMode::setActiveSubCategory (this=this@entry=0x55cdb7c21300, cat=4) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qabstractitemmodel.h:60
#50 0x00007f3595ea34a7 in SidebarMode::qt_static_metacall (_o=_o@entry=0x55cdb7c21300, _c=_c@entry=QMetaObject::WriteProperty, _id=_id@entry=4, _a=_a@entry=0x7ffebe755880) at ./obj-x86_64-linux-gnu/sidebar/systemsettings_sidebar_mode_autogen/EWIEGA46WW/moc_SidebarMode.cpp:313
#51 0x00007f3595ea38f3 in SidebarMode::qt_metacall (this=0x55cdb7c21300, _c=QMetaObject::WriteProperty, _id=4, _a=0x7ffebe755880) at ./obj-x86_64-linux-gnu/sidebar/systemsettings_sidebar_mode_autogen/EWIEGA46WW/moc_SidebarMode.cpp:361
#52 0x00007f35ace17362 in QV4::QObjectWrapper::setProperty (engine=0x55cdb7c3faa0, object=0x55cdb7c21300, property=0x55cdb7d780e8, value=...) at ../../include/QtQml/5.12.2/QtQml/private/../../../../../src/qml/qml/qqmlpropertycache_p.h:214
#53 0x00007f35ace1807e in QV4::QObjectWrapper::setQmlProperty (value=..., revisionMode=QV4::QObjectWrapper::IgnoreRevision, name=<optimized out>, object=0x55cdb7c21300, qmlContext=<optimized out>, engine=0x55cdb7c3faa0) at jsruntime/qv4qobjectwrapper.cpp:435
#54 QV4::QObjectWrapper::setQmlProperty (engine=0x55cdb7c3faa0, qmlContext=<optimized out>, object=0x55cdb7c21300, name=<optimized out>, revisionMode=QV4::QObjectWrapper::IgnoreRevision, value=...) at jsruntime/qv4qobjectwrapper.cpp:418
#55 0x00007f35ace181cf in QV4::QObjectWrapper::virtualPut (m=0x7f358bbc1588, id=..., value=..., receiver=0x7f358bbc1588) at /usr/include/c++/8/bits/atomic_base.h:390
#56 0x00007f35ace964b7 in QV4::Object::put (receiver=<optimized out>, v=..., name=0x7f358bbc1580, this=0x7f358bbc1588) at ../../include/QtQml/5.12.2/QtQml/private/../../../../../src/qml/jsruntime/qv4string_p.h:171
#57 QV4::Runtime::method_storeProperty (engine=0x55cdb7c3faa0, object=..., nameIndex=<optimized out>, value=...) at jsruntime/qv4runtime.cpp:617
#58 0x00007f35ace2fe70 in QV4::Moth::VME::interpret (frame=0x7ffebe755bd0, engine=0x55cdb7c3faa0, code=0x7f35940292ee "\016\002`") at jsruntime/qv4vme_moth.cpp:605
#59 0x00007f35ace34297 in QV4::Moth::VME::exec (frame=frame@entry=0x7ffebe755bd0, engine=engine@entry=0x55cdb7c3faa0) at jsruntime/qv4vme_moth.cpp:441
#60 0x00007f35acdc55eb in QV4::Function::call (this=this@entry=0x55cdb7e43a60, thisObject=<optimized out>, argv=argv@entry=0x7f358bbc1500, argc=<optimized out>, context=<optimized out>) at jsruntime/qv4function.cpp:68
#61 0x00007f35acf3ad77 in QQmlJavaScriptExpression::evaluate (this=this@entry=0x55cdb906c390, callData=callData@entry=0x7f358bbc14d0, isUndefined=isUndefined@entry=0x0) at ../../include/QtQml/5.12.2/QtQml/private/../../../../../src/qml/jsruntime/qv4value_p.h:177
#62 0x00007f35acedbcbf in QQmlBoundSignalExpression::evaluate (this=<optimized out>, a=0x0) at ../../include/QtQml/5.12.2/QtQml/private/../../../../../src/qml/jsruntime/qv4jscall_p.h:95
#63 0x00007f35acedce2b in QQmlBoundSignal_callback (e=0x55cdb906c340, a=0x0) at ../../include/QtQml/5.12.2/QtQml/private/../../../../../src/qml/qml/qqmlboundsignalexpressionpointer_p.h:69
#64 0x00007f35acf1c803 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:104
#65 0x00007f35acebeada in QQmlData::signalEmitted (object=0x55cdb90669a0, index=64, a=0x0) at qml/qqmlengine.cpp:883
#66 0x00007f35ade29d5f in QMetaObject::activate (sender=0x55cdb90669a0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:121
#67 0x00007f35a7480ab8 in QQuickAbstractButtonPrivate::handleRelease (this=0x55cdb9066a60, point=...) at qquickabstractbutton.cpp:179
#68 0x00007f35a749db05 in QQuickControl::mouseReleaseEvent (this=<optimized out>, event=0x7ffebe758130) at /usr/include/x86_64-linux-gnu/qt5/QtGui/qevent.h:128
#69 0x00007f35ad302938 in QQuickItem::event (this=0x55cdb90669a0, ev=0x7ffebe758130) at items/qquickitem.cpp:8038
#70 0x00007f35ae860551 in QApplicationPrivate::notify_helper (this=this@entry=0x55cdb788eac0, receiver=receiver@entry=0x55cdb90669a0, e=e@entry=0x7ffebe758130) at kernel/qapplication.cpp:3736
#71 0x00007f35ae867930 in QApplication::notify (this=0x7ffebe759070, receiver=0x55cdb90669a0, e=0x7ffebe758130) at kernel/qapplication.cpp:3483
#72 0x00007f35ade008e9 in QCoreApplication::notifyInternal2 (receiver=0x55cdb90669a0, event=0x7ffebe758130) at ../../include/QtCore/5.12.2/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:322
#73 0x00007f35ad31c585 in QQuickWindowPrivate::deliverMouseEvent (this=this@entry=0x55cdb7a5f5a0, pointerEvent=0x55cdb926f360) at items/qquickwindow.cpp:1784
#74 0x00007f35ad31d7db in QQuickWindowPrivate::deliverPointerEvent (this=this@entry=0x55cdb7a5f5a0, event=0x55cdb926f360) at items/qquickwindow.cpp:2347
#75 0x00007f35ad31e51f in QQuickWindowPrivate::handleMouseEvent (event=0x7ffebe758130, this=0x55cdb7a5f5a0) at items/qquickwindow.cpp:2210
#76 QQuickWindowPrivate::handleMouseEvent (this=0x55cdb7a5f5a0, event=0x7ffebe758130) at items/qquickwindow.cpp:2163
#77 0x00007f35ae27a1e5 in QWindow::event (this=this@entry=0x55cdb7c248d0, ev=ev@entry=0x7ffebe758130) at kernel/qwindow.cpp:2258
#78 0x00007f35ad31f8ab in QQuickWindow::event (this=0x55cdb7c248d0, e=0x7ffebe758130) at items/qquickwindow.cpp:1673
#79 0x00007f35ae860551 in QApplicationPrivate::notify_helper (this=this@entry=0x55cdb788eac0, receiver=receiver@entry=0x55cdb7c248d0, e=e@entry=0x7ffebe758130) at kernel/qapplication.cpp:3736
#80 0x00007f35ae867930 in QApplication::notify (this=0x7ffebe759070, receiver=0x55cdb7c248d0, e=0x7ffebe758130) at kernel/qapplication.cpp:3483
#81 0x00007f35ade008e9 in QCoreApplication::notifyInternal2 (receiver=0x55cdb7c248d0, event=0x7ffebe758130) at ../../include/QtCore/5.12.2/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:322
#82 0x00007f35ad5cfcb7 in QQuickWidget::mouseReleaseEvent (this=<optimized out>, e=0x7ffebe758760) at qquickwidget.cpp:1372
#83 0x00007f35ae89fb58 in QWidget::event (this=this@entry=0x55cdb7c3e540, event=event@entry=0x7ffebe758760) at kernel/qwidget.cpp:8955
#84 0x00007f35ad5cfe55 in QQuickWidget::event (this=0x55cdb7c3e540, e=0x7ffebe758760) at qquickwidget.cpp:1525
#85 0x00007f35ae860551 in QApplicationPrivate::notify_helper (this=this@entry=0x55cdb788eac0, receiver=receiver@entry=0x55cdb7c3e540, e=e@entry=0x7ffebe758760) at kernel/qapplication.cpp:3736
#86 0x00007f35ae867b77 in QApplication::notify (this=<optimized out>, receiver=0x55cdb7c3e540, e=0x7ffebe758760) at kernel/qapplication.cpp:3197
#87 0x00007f35ade008e9 in QCoreApplication::notifyInternal2 (receiver=0x55cdb7c3e540, event=0x7ffebe758760) at ../../include/QtCore/5.12.2/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:322
#88 0x00007f35ae866ebf in QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x55cdb7c3e540, event=event@entry=0x7ffebe758760, alienWidget=0x55cdb7c3e540, nativeWidget=0x55cdb794ebd0, buttonDown=buttonDown@entry=0x7f35aed618d0 <qt_button_down>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2683
#89 0x00007f35ae8ba57b in QWidgetWindow::handleMouseEvent (this=0x55cdb7a280c0, event=0x7ffebe758be0) at /usr/include/c++/8/bits/atomic_base.h:390
#90 0x00007f35ae8bd53f in QWidgetWindow::event (event=0x7ffebe758be0, this=0x55cdb7a280c0) at kernel/qwidgetwindow.cpp:281
#91 QWidgetWindow::event (this=0x55cdb7a280c0, event=0x7ffebe758be0) at kernel/qwidgetwindow.cpp:224
#92 0x00007f35ae860551 in QApplicationPrivate::notify_helper (this=this@entry=0x55cdb788eac0, receiver=receiver@entry=0x55cdb7a280c0, e=e@entry=0x7ffebe758be0) at kernel/qapplication.cpp:3736
#93 0x00007f35ae867930 in QApplication::notify (this=0x7ffebe759070, receiver=0x55cdb7a280c0, e=0x7ffebe758be0) at kernel/qapplication.cpp:3483
#94 0x00007f35ade008e9 in QCoreApplication::notifyInternal2 (receiver=0x55cdb7a280c0, event=0x7ffebe758be0) at ../../include/QtCore/5.12.2/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:322
#95 0x00007f35ae26ec6c in QGuiApplicationPrivate::processMouseEvent (e=0x55cdb97a3fa0) at kernel/qguiapplication.cpp:2102
#96 0x00007f35ae270075 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x55cdb97a3fa0) at kernel/qguiapplication.cpp:1837
#97 0x00007f35ae24a05b in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1071
#98 0x00007f35a8c0767a in xcbSourceDispatch (source=<optimized out>) at qxcbeventdispatcher.cpp:105
#99 0x00007f35ab624aae in g_main_dispatch (context=0x7f35a0004fd0) at ../../../glib/gmain.c:3189
#100 g_main_context_dispatch (context=context@entry=0x7f35a0004fd0) at ../../../glib/gmain.c:3854
#101 0x00007f35ab624d48 in g_main_context_iterate (context=context@entry=0x7f35a0004fd0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:3927
#102 0x00007f35ab624ddc in g_main_context_iteration (context=0x7f35a0004fd0, may_block=may_block@entry=1) at ../../../glib/gmain.c:3988
#103 0x00007f35ade54047 in QEventDispatcherGlib::processEvents (this=0x55cdb78e7520, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#104 0x00007f35addff5bb in QEventLoop::exec (this=this@entry=0x7ffebe758f90, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#105 0x00007f35ade075e2 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#106 0x000055cdb6043639 in main (argc=<optimized out>, argv=<optimized out>) at ./app/main.cpp:71
[Inferior 1 (process 5549) detached]

Revision history for this message

In KDE Bug Tracking System #407783, Rik Mills (rikmills) wrote on 2019-05-21:

#10

I can also replicate this in OpenSuse Tumbleweed with Plasma 5.16 beta packages.

Revision history for this message

In KDE Bug Tracking System #408325, Bizyaev (bizyaev) wrote on 2019-06-05:

#12

Download full text (21.8 KiB)

SUMMARY

STEPS TO REPRODUCE
1. Click the touchpad KCM. Only happens sometimes, not yet sure what it depends on.

OBSERVED RESULT
Crash:
Application: Параметры системы (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
29 return SYSCALL_CANCEL (poll, fds, nfds, timeout);
[Current thread is 1 (Thread 0x7fd9a2a1e940 (LWP 18470))]

Thread 6 (Thread 0x7fd969fc3700 (LWP 18478)):
#0 0x00007fd99df62c98 in __GI___libc_read (fd=15, buf=0x7fd969fc2a30, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:26
#1 0x00007fd996f9dca0 in ?? () from /usr/lib64/libglib-2.0.so.0
#2 0x00007fd996f58cb8 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#3 0x00007fd996f59150 in ?? () from /usr/lib64/libglib-2.0.so.0
#4 0x00007fd996f592bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#5 0x00007fd99e8a699b in QEventDispatcherGlib::processEvents (this=0x7fd964000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6 0x00007fd99e847c0a in QEventLoop::exec (this=this@entry=0x7fd969fc2c50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7 0x00007fd99e66f04a in QThread::exec (this=this@entry=0x55a9a5ace910) at thread/qthread.cpp:531
#8 0x00007fd99c43cd95 in QQmlThreadPrivate::run (this=0x55a9a5ace910) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/qml/ftw/qqmlthread.cpp:148
#9 0x00007fd99e6707f2 in QThreadPrivate::start (arg=0x55a9a5ace910) at thread/qthread_unix.cpp:361
#10 0x00007fd9995e7569 in start_thread (arg=0x7fd969fc3700) at pthread_create.c:465
#11 0x00007fd99df719ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fd9728fd700 (LWP 18477)):
#0 0x00007fd996f9efd9 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0
#1 0x00007fd996f581d4 in g_main_context_release () from /usr/lib64/libglib-2.0.so.0
#2 0x00007fd996f59166 in ?? () from /usr/lib64/libglib-2.0.so.0
#3 0x00007fd996f592bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4 0x00007fd99e8a699b in QEventDispatcherGlib::processEvents (this=0x7fd96c000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5 0x00007fd99e847c0a in QEventLoop::exec (this=this@entry=0x7fd9728fcc50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6 0x00007fd99e66f04a in QThread::exec (this=this@entry=0x55a9a551b9e0) at thread/qthread.cpp:531
#7 0x00007fd99c43cd95 in QQmlThreadPrivate::run (this=0x55a9a551b9e0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/qml/ftw/qqmlthread.cpp:148
#8 0x00007fd99e6707f2 in QThreadPrivate::start (arg=0x55a9a551b9e0) at thread/qthread_unix.cpp:361
#9 0x00007fd9995e7569 in start_thread (arg=0x7fd9728fd700) at pthread_create.c:465
#10 0x00007fd99df719ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

SUMMARY

STEPS TO REPRODUCE
1. Click the touchpad KCM. Only happens sometimes, not yet sure what it depends on.

OBSERVED RESULT
Crash:
Application: Параметры системы (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
29	  return SYSCALL_CANCEL (poll, fds, nfds, timeout);
[Current thread is 1 (Thread 0x7fd9a2a1e940 (LWP 18470))]

Thread 6 (Thread 0x7fd969fc3700 (LWP 18478)):
#0  0x00007fd99df62c98 in __GI___libc_read (fd=15, buf=0x7fd969fc2a30, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007fd996f9dca0 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fd996f58cb8 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fd996f59150 in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007fd996f592bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#5  0x00007fd99e8a699b in QEventDispatcherGlib::processEvents (this=0x7fd964000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007fd99e847c0a in QEventLoop::exec (this=this@entry=0x7fd969fc2c50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007fd99e66f04a in QThread::exec (this=this@entry=0x55a9a5ace910) at thread/qthread.cpp:531
#8  0x00007fd99c43cd95 in QQmlThreadPrivate::run (this=0x55a9a5ace910) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/qml/ftw/qqmlthread.cpp:148
#9  0x00007fd99e6707f2 in QThreadPrivate::start (arg=0x55a9a5ace910) at thread/qthread_unix.cpp:361
#10 0x00007fd9995e7569 in start_thread (arg=0x7fd969fc3700) at pthread_create.c:465
#11 0x00007fd99df719ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fd9728fd700 (LWP 18477)):
#0  0x00007fd996f9efd9 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007fd996f581d4 in g_main_context_release () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fd996f59166 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fd996f592bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007fd99e8a699b in QEventDispatcherGlib::processEvents (this=0x7fd96c000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fd99e847c0a in QEventLoop::exec (this=this@entry=0x7fd9728fcc50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007fd99e66f04a in QThread::exec (this=this@entry=0x55a9a551b9e0) at thread/qthread.cpp:531
#7  0x00007fd99c43cd95 in QQmlThreadPrivate::run (this=0x55a9a551b9e0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/qml/ftw/qqmlthread.cpp:148
#8  0x00007fd99e6707f2 in QThreadPrivate::start (arg=0x55a9a551b9e0) at thread/qthread_unix.cpp:361
#9  0x00007fd9995e7569 in start_thread (arg=0x7fd9728fd700) at pthread_create.c:465
#10 0x00007fd99df719ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fd97a3ff700 (LWP 18474)):
#0  0x00007fd9995ed8ad in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a9a50e559c) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55a9a50e5548, cond=0x55a9a50e5570) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55a9a50e5570, mutex=0x55a9a50e5548) at pthread_cond_wait.c:655
#3  0x00007fd97b0a592b in ?? () from /usr/lib64/dri/i965_dri.so
#4  0x00007fd97b0a5637 in ?? () from /usr/lib64/dri/i965_dri.so
#5  0x00007fd9995e7569 in start_thread (arg=0x7fd97a3ff700) at pthread_create.c:465
#6  0x00007fd99df719ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fd982647700 (LWP 18473)):
#0  0x00007fd99df6719b in __GI___poll (fds=0x7fd97c002de0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd996f591a9 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fd996f592bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fd99e8a699b in QEventDispatcherGlib::processEvents (this=0x7fd97c000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fd99e847c0a in QEventLoop::exec (this=this@entry=0x7fd982646c40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#5  0x00007fd99e66f04a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#6  0x00007fd99ed16cd5 in ?? () from /usr/lib64/libQt5DBus.so.5
#7  0x00007fd99e6707f2 in QThreadPrivate::start (arg=0x7fd99ef8ed80) at thread/qthread_unix.cpp:361
#8  0x00007fd9995e7569 in start_thread (arg=0x7fd982647700) at pthread_create.c:465
#9  0x00007fd99df719ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fd98e8cd700 (LWP 18472)):
#0  0x00007fd99df6719b in __GI___poll (fds=0x7fd98e8ccb78, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fd9991ac307 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007fd9991adf3a in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007fd9910953d8 in QXcbEventQueue::run (this=0x55a9a5070380) at qxcbeventqueue.cpp:228
#4  0x00007fd99e6707f2 in QThreadPrivate::start (arg=0x55a9a5070380) at thread/qthread_unix.cpp:361
#5  0x00007fd9995e7569 in start_thread (arg=0x7fd98e8cd700) at pthread_create.c:465
#6  0x00007fd99df719ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fd9a2a1e940 (LWP 18470)):
[KCrash Handler]
#6  0x00007fd960332784 in TouchpadConfigContainer::sizeHint (this=<optimized out>) at /usr/src/debug/plasma5-desktop-5.15.90-lp151.360.1.x86_64/kcms/touchpad/src/kcm/touchpadconfigcontainer.cpp:70
#7  0x00007fd99f925b34 in QWidgetItemV2::updateCacheIfNecessary (this=0x55a9ab7e0e20) at kernel/qlayoutitem.cpp:724
#8  0x00007fd99f925e1d in QWidgetItemV2::maximumSize (this=0x55a9ab7e0e20) at kernel/qlayoutitem.cpp:812
#9  0x00007fd99f91a3a2 in QBoxLayoutPrivate::setupGeom (this=this@entry=0x55a9a8374b90) at kernel/qboxlayout.cpp:289
#10 0x00007fd99f91b046 in QBoxLayoutPrivate::setupGeom (this=<optimized out>) at kernel/qboxlayout.cpp:615
#11 QBoxLayout::sizeHint (this=<optimized out>) at kernel/qboxlayout.cpp:616
#12 0x00007fd99f921be7 in QLayout::totalSizeHint (this=0x55a9ab8b5410) at kernel/qlayout.cpp:719
#13 0x00007fd99fa92002 in QScrollArea::sizeHint (this=<optimized out>) at widgets/qscrollarea.cpp:394
#14 0x00007fd99f927a57 in QStackedLayout::sizeHint (this=<optimized out>) at kernel/qstackedlayout.cpp:444
#15 0x00007fd99f921be7 in QLayout::totalSizeHint (this=0x7fd988007d80) at kernel/qlayout.cpp:719
#16 0x00007fd99f925b34 in QWidgetItemV2::updateCacheIfNecessary (this=0x55a9a557ab30) at kernel/qlayoutitem.cpp:724
#17 0x00007fd99f925dcd in QWidgetItemV2::minimumSize (this=0x55a9a557ab30) at kernel/qlayoutitem.cpp:799
#18 0x00007fd99f91e3a6 in QGridBox::minimumSize (this=0x55a9a5556be0) at kernel/qgridlayout.cpp:74
#19 QGridLayoutPrivate::setupLayoutData (this=this@entry=0x55a9a54db410, hSpacing=hSpacing@entry=4, vSpacing=vSpacing@entry=4) at kernel/qgridlayout.cpp:810
#20 0x00007fd99f91f823 in QGridLayoutPrivate::distribute (this=this@entry=0x55a9a54db410, r=..., hSpacing=4, vSpacing=vSpacing@entry=4) at kernel/qgridlayout.cpp:940
#21 0x00007fd99f920607 in QGridLayout::setGeometry (this=0x55a9a55d63c0, rect=...) at kernel/qgridlayout.cpp:1385
#22 0x00007fd99f921a58 in QLayoutPrivate::doResize (this=this@entry=0x55a9a54db410, r=...) at kernel/qlayout.cpp:592
#23 0x00007fd99f922ae9 in QLayout::activate (this=<optimized out>) at kernel/qlayout.cpp:1117
#24 0x00007fd99f9445df in QWidgetPrivate::setVisible (this=0x55a9a5c92de0, visible=<optimized out>) at kernel/qwidget.cpp:8356
#25 0x00007fd99f928037 in QStackedLayout::setCurrentIndex (this=0x7fd988007d80, index=1) at kernel/qstackedlayout.cpp:321
#26 0x00007fd99f928344 in QStackedLayout::setCurrentWidget (this=0x7fd988007d80, widget=widget@entry=0x55a9ab8e7d00) at kernel/qstackedlayout.cpp:376
#27 0x00007fd99faa8361 in QStackedWidget::setCurrentWidget (this=<optimized out>, widget=0x55a9ab8e7d00) at widgets/qstackedwidget.cpp:248
#28 0x00007fd9a0f4ca60 in KPageViewPrivate::_k_pageSelected (this=0x55a9a5577180, index=..., previous=...) at /usr/src/debug/kwidgetsaddons-5.58.0-lp151.184.1.x86_64/src/kpageview.cpp:247
#29 0x00007fd99e879445 in QMetaObject::activate (sender=sender@entry=0x55a9a55a6fe0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffe292259c0) at kernel/qobject.cpp:3795
#30 0x00007fd99e879b17 in QMetaObject::activate (sender=sender@entry=0x55a9a55a6fe0, m=m@entry=0x7fd99ecf6680 <QItemSelectionModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffe292259c0) at kernel/qobject.cpp:3648
#31 0x00007fd99e7ff4b7 in QItemSelectionModel::selectionChanged (this=this@entry=0x55a9a55a6fe0, _t1=..., _t2=...) at .moc/moc_qitemselectionmodel.cpp:458
#32 0x00007fd99e804020 in QItemSelectionModel::emitSelectionChanged (this=this@entry=0x55a9a55a6fe0, newSelection=..., oldSelection=...) at itemmodels/qitemselectionmodel.cpp:1871
#33 0x00007fd99e80756b in QItemSelectionModel::select (this=0x55a9a55a6fe0, selection=..., command=...) at itemmodels/qitemselectionmodel.cpp:1338
#34 0x00007fd99e80151c in QItemSelectionModel::select (this=this@entry=0x55a9a55a6fe0, index=..., command=command@entry=...) at itemmodels/qitemselectionmodel.cpp:1188
#35 0x00007fd99e7ff864 in QItemSelectionModel::setCurrentIndex (this=this@entry=0x55a9a55a6fe0, index=..., command=command@entry=...) at itemmodels/qitemselectionmodel.cpp:1413
#36 0x00007fd9a0f4baea in KPageViewPrivate::updateSelection (this=<optimized out>) at /usr/src/debug/kwidgetsaddons-5.58.0-lp151.184.1.x86_64/src/kpageview.cpp:111
#37 0x00007fd9a0f4c895 in KPageViewPrivate::_k_modelChanged (this=0x55a9a5577180) at /usr/src/debug/kwidgetsaddons-5.58.0-lp151.184.1.x86_64/src/kpageview.cpp:218
#38 0x00007fd99e879445 in QMetaObject::activate (sender=sender@entry=0x55a9a557ab90, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffe29225e20) at kernel/qobject.cpp:3795
#39 0x00007fd99e879b17 in QMetaObject::activate (sender=sender@entry=0x55a9a557ab90, m=m@entry=0x7fd99ecf6580 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffe29225e20) at kernel/qobject.cpp:3648
#40 0x00007fd99e7f1066 in QAbstractItemModel::layoutChanged (this=this@entry=0x55a9a557ab90, _t1=..., _t2=<optimized out>, _t2@entry=QAbstractItemModel::NoLayoutChangeHint) at .moc/moc_qabstractitemmodel.cpp:570
#41 0x00007fd9a0f52cb6 in KPageWidgetModel::addPage (this=0x55a9a557ab90, item=item@entry=0x55a9ab8adab0) at /usr/src/debug/kwidgetsaddons-5.58.0-lp151.184.1.x86_64/src/kpagewidgetmodel.cpp:440
#42 0x00007fd9a0f516ad in KPageWidget::addPage (this=<optimized out>, item=item@entry=0x55a9ab8adab0) at /usr/src/debug/kwidgetsaddons-5.58.0-lp151.184.1.x86_64/src/kpagewidget.cpp:94
#43 0x00007fd9a2657cc6 in ModuleView::addModule (this=this@entry=0x55a9a5531360, module=0x55a9a55df8c8) at /usr/src/debug/systemsettings5-5.15.90-lp151.218.1.x86_64/core/ModuleView.cpp:198
#44 0x00007fd9a265804d in ModuleView::loadModule (this=this@entry=0x55a9a5531360, menuItem=...) at /usr/src/debug/systemsettings5-5.15.90-lp151.218.1.x86_64/core/ModuleView.cpp:151
#45 0x00007fd9797dc634 in SidebarMode::setActiveSubCategory (this=this@entry=0x55a9a5554a50, cat=4) at /usr/src/debug/systemsettings5-5.15.90-lp151.218.1.x86_64/sidebar/SidebarMode.cpp:462
#46 0x00007fd9797e2397 in SidebarMode::qt_static_metacall (_o=_o@entry=0x55a9a5554a50, _c=_c@entry=QMetaObject::WriteProperty, _id=_id@entry=4, _a=_a@entry=0x7ffe29226150) at /usr/src/debug/systemsettings5-5.15.90-lp151.218.1.x86_64/build/sidebar/systemsettings_sidebar_mode_autogen/EWIEGA46WW/moc_SidebarMode.cpp:313
#47 0x00007fd9797e2803 in SidebarMode::qt_metacall (this=0x55a9a5554a50, _c=QMetaObject::WriteProperty, _id=4, _a=0x7ffe29226150) at /usr/src/debug/systemsettings5-5.15.90-lp151.218.1.x86_64/build/sidebar/systemsettings_sidebar_mode_autogen/EWIEGA46WW/moc_SidebarMode.cpp:361
#48 0x00007fd99c2ea603 in QV4::QObjectWrapper::setProperty (engine=engine@entry=0x55a9a55ee7d0, object=object@entry=0x55a9a5554a50, property=0x55a9a594ee58, value=...) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/jsruntime/qv4qobjectwrapper.cpp:536
#49 0x00007fd99c2eb13e in QV4::QObjectWrapper::setQmlProperty (engine=0x55a9a55ee7d0, qmlContext=<optimized out>, object=0x55a9a5554a50, name=<optimized out>, revisionMode=QV4::QObjectWrapper::IgnoreRevision, value=...) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/jsruntime/qv4qobjectwrapper.cpp:437
#50 0x00007fd99c2eb2d9 in QV4::QObjectWrapper::virtualPut (m=0x7fd971cbe538, id=..., value=..., receiver=0x7fd971cbe538) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/jsruntime/qv4qobjectwrapper.cpp:723
#51 0x00007fd99c2b0269 in QV4::Object::put (receiver=0x7fd971cbe538, v=..., id=..., this=0x7fd971cbe538) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/jsruntime/qv4object_p.h:324
#52 QV4::Object::virtualResolveLookupSetter (object=0x7fd971cbe538, engine=0x55a9a55ee7d0, lookup=0x55a9a594b030, value=...) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/jsruntime/qv4object.cpp:800
#53 0x00007fd99c302691 in QV4::Moth::VME::interpret (frame=0x7ffe29226500, engine=0x55a9a55ee7d0, code=0x7fd980039509 "\016\002") at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/jsruntime/qv4vme_moth.cpp:630
#54 0x00007fd99c307056 in QV4::Moth::VME::exec (frame=frame@entry=0x7ffe29226500, engine=engine@entry=0x55a9a55ee7d0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/jsruntime/qv4vme_moth.cpp:441
#55 0x00007fd99c29609b in QV4::Function::call (this=this@entry=0x55a9a58bead0, thisObject=thisObject@entry=0x7fd971cbe4e8, argv=argv@entry=0x7fd971cbe500, argc=<optimized out>, context=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/jsruntime/qv4function.cpp:68
#56 0x00007fd99c409237 in QQmlJavaScriptExpression::evaluate (this=this@entry=0x55a9ab935b20, callData=callData@entry=0x7fd971cbe4d0, isUndefined=isUndefined@entry=0x0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/qml/qqmljavascriptexpression.cpp:211
#57 0x00007fd99c3ad529 in QQmlBoundSignalExpression::evaluate (this=this@entry=0x55a9ab935b20, a=a@entry=0x0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/qml/qqmlboundsignal.cpp:225
#58 0x00007fd99c3ae8ab in QQmlBoundSignal_callback (e=0x55a9ab935ad0, a=0x0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/qml/qqmlboundsignal.cpp:358
#59 0x00007fd99c3e9852 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/qml/qqmlnotifier.cpp:104
#60 0x00007fd99c38f519 in QQmlData::signalEmitted (object=0x55a9ab930590, index=<optimized out>, a=0x0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/qml/qml/qqmlengine.cpp:883
#61 0x00007fd99e878c7f in QMetaObject::activate (sender=0x55a9ab930590, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x0) at kernel/qobject.cpp:3664
#62 0x00007fd99e879b17 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7fd98cfef440 <QQuickAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x0) at kernel/qobject.cpp:3648
#63 0x00007fd98cd8df43 in QQuickAbstractButton::clicked (this=<optimized out>) at .moc/moc_qquickabstractbutton_p.cpp:629
#64 0x00007fd98cd19fa6 in QQuickAbstractButtonPrivate::trigger (this=this@entry=0x55a9ab930650) at qquickabstractbutton.cpp:336
#65 0x00007fd98cd1be48 in QQuickAbstractButtonPrivate::handleRelease (this=0x55a9ab930650, point=...) at qquickabstractbutton.cpp:179
#66 0x00007fd98cd391c5 in QQuickControl::mouseReleaseEvent (this=<optimized out>, event=0x7ffe29228ac0) at qquickcontrol.cpp:2110
#67 0x00007fd99c9d5bd8 in QQuickItem::event (this=0x55a9ab930590, ev=0x7ffe29228ac0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/quick/items/qquickitem.cpp:8096
#68 0x00007fd99f90478c in QApplicationPrivate::notify_helper (this=this@entry=0x55a9a504fa70, receiver=receiver@entry=0x55a9ab930590, e=e@entry=0x7ffe29228ac0) at kernel/qapplication.cpp:3737
#69 0x00007fd99f90bcf0 in QApplication::notify (this=0x7ffe29229a20, receiver=0x55a9ab930590, e=0x7ffe29228ac0) at kernel/qapplication.cpp:3484
#70 0x00007fd99e8498e8 in QCoreApplication::notifyInternal2 (receiver=0x55a9ab930590, event=0x7ffe29228ac0) at kernel/qcoreapplication.cpp:1060
#71 0x00007fd99e849abe in QCoreApplication::sendEvent (receiver=receiver@entry=0x55a9ab930590, event=event@entry=0x7ffe29228ac0) at kernel/qcoreapplication.cpp:1450
#72 0x00007fd99c9ef49d in QQuickWindowPrivate::deliverMouseEvent (this=this@entry=0x55a9a55f2260, pointerEvent=0x55a9ab7a4350) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/quick/items/qquickwindow.cpp:1786
#73 0x00007fd99c9f068b in QQuickWindowPrivate::deliverPointerEvent (this=this@entry=0x55a9a55f2260, event=0x55a9ab7a4350) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/quick/items/qquickwindow.cpp:2349
#74 0x00007fd99c9f131e in QQuickWindowPrivate::handleMouseEvent (this=0x55a9a55f2260, event=0x7ffe29228ac0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/quick/items/qquickwindow.cpp:2212
#75 0x00007fd99f0c5895 in QWindow::event (this=this@entry=0x55a9a5554520, ev=ev@entry=0x7ffe29228ac0) at kernel/qwindow.cpp:2341
#76 0x00007fd99c9f25b5 in QQuickWindow::event (this=0x55a9a5554520, e=0x7ffe29228ac0) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/quick/items/qquickwindow.cpp:1675
#77 0x00007fd99f90478c in QApplicationPrivate::notify_helper (this=this@entry=0x55a9a504fa70, receiver=receiver@entry=0x55a9a5554520, e=e@entry=0x7ffe29228ac0) at kernel/qapplication.cpp:3737
#78 0x00007fd99f90bcf0 in QApplication::notify (this=0x7ffe29229a20, receiver=0x55a9a5554520, e=0x7ffe29228ac0) at kernel/qapplication.cpp:3484
#79 0x00007fd99e8498e8 in QCoreApplication::notifyInternal2 (receiver=0x55a9a5554520, event=0x7ffe29228ac0) at kernel/qcoreapplication.cpp:1060
#80 0x00007fd99e849abe in QCoreApplication::sendEvent (receiver=<optimized out>, event=event@entry=0x7ffe29228ac0) at kernel/qcoreapplication.cpp:1450
#81 0x00007fd99d09a51c in QQuickWidget::mouseReleaseEvent (this=<optimized out>, e=0x7ffe29229110) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/quickwidgets/qquickwidget.cpp:1372
#82 0x00007fd99f944b18 in QWidget::event (this=this@entry=0x55a9a55c0d00, event=event@entry=0x7ffe29229110) at kernel/qwidget.cpp:9322
#83 0x00007fd99d09a6fb in QQuickWidget::event (this=0x55a9a55c0d00, e=0x7ffe29229110) at /usr/src/debug/libqt5-qtdeclarative-5.12.3-lp151.1.1.x86_64/src/quickwidgets/qquickwidget.cpp:1525
#84 0x00007fd99f90478c in QApplicationPrivate::notify_helper (this=this@entry=0x55a9a504fa70, receiver=receiver@entry=0x55a9a55c0d00, e=e@entry=0x7ffe29229110) at kernel/qapplication.cpp:3737
#85 0x00007fd99f90cbc8 in QApplication::notify (this=<optimized out>, receiver=0x55a9a55c0d00, e=0x7ffe29229110) at kernel/qapplication.cpp:3198
#86 0x00007fd99e8498e8 in QCoreApplication::notifyInternal2 (receiver=0x55a9a55c0d00, event=0x7ffe29229110) at kernel/qcoreapplication.cpp:1060
#87 0x00007fd99e849ace in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x55a9a55c0d00, event=event@entry=0x7ffe29229110) at kernel/qcoreapplication.cpp:1462
#88 0x00007fd99f90b1bf in QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x55a9a55c0d00, event=event@entry=0x7ffe29229110, alienWidget=0x55a9a55c0d00, nativeWidget=0x55a9a5331100, buttonDown=buttonDown@entry=0x7fd9a00078d0 <qt_button_down>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2684
#89 0x00007fd99f95f9f1 in QWidgetWindow::handleMouseEvent (this=this@entry=0x55a9a5485a70, event=event@entry=0x7ffe292295a0) at kernel/qwidgetwindow.cpp:661
#90 0x00007fd99f96268a in QWidgetWindow::event (this=0x55a9a5485a70, event=0x7ffe292295a0) at kernel/qwidgetwindow.cpp:280
#91 0x00007fd99f90478c in QApplicationPrivate::notify_helper (this=this@entry=0x55a9a504fa70, receiver=receiver@entry=0x55a9a5485a70, e=e@entry=0x7ffe292295a0) at kernel/qapplication.cpp:3737
#92 0x00007fd99f90bcf0 in QApplication::notify (this=0x7ffe29229a20, receiver=0x55a9a5485a70, e=0x7ffe292295a0) at kernel/qapplication.cpp:3484
#93 0x00007fd99e8498e8 in QCoreApplication::notifyInternal2 (receiver=0x55a9a5485a70, event=0x7ffe292295a0) at kernel/qcoreapplication.cpp:1060
#94 0x00007fd99e849ace in QCoreApplication::sendSpontaneousEvent (receiver=receiver@entry=0x55a9a5485a70, event=event@entry=0x7ffe292295a0) at kernel/qcoreapplication.cpp:1462
#95 0x00007fd99f0ba43b in QGuiApplicationPrivate::processMouseEvent (e=0x55a9a8b2fe90) at kernel/qguiapplication.cpp:2102
#96 0x00007fd99f0bb5a5 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x55a9a8b2fe90) at kernel/qguiapplication.cpp:1837
#97 0x00007fd99f093d7b in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1151
#98 0x00007fd9910963fa in xcbSourceDispatch (source=<optimized out>) at qxcbeventdispatcher.cpp:105
#99 0x00007fd996f58e87 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#100 0x00007fd996f59230 in ?? () from /usr/lib64/libglib-2.0.so.0
#101 0x00007fd996f592bc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#102 0x00007fd99e8a697f in QEventDispatcherGlib::processEvents (this=0x55a9a50c35c0, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#103 0x00007fd99e847c0a in QEventLoop::exec (this=this@entry=0x7ffe29229940, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#104 0x00007fd99e850d40 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1363
#105 0x000055a9a37a4d48 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/systemsettings5-5.15.90-lp151.218.1.x86_64/app/main.cpp:71
[Inferior 1 (process 18470) detached]

EXPECTED RESULT
KCM loads and presents the settings.

SOFTWARE/OS VERSIONS
KDE Plasma Version: 5.15.90
KDE Frameworks Version: 5.58.0
Qt Version: 5.12.3

Revision history for this message

In KDE Bug Tracking System #408325, Nate-b (nate-b) wrote on 2019-06-05:

#13

Confirmed. :(

Revision history for this message

André Verwijs (verwijs) wrote on 2019-06-08:

Added backtrace file... Edit (13.4 KiB, text/plain)
Dependencies.txt Edit (12.5 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (934 bytes, text/plain; charset="utf-8")
JournalErrors.txt Edit (39.4 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (836 bytes, text/plain; charset="utf-8")
ProcMaps.txt Edit (169.6 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (1.3 KiB, text/plain; charset="utf-8")
Registers.txt Edit (1.0 KiB, text/plain; charset="utf-8")
SegvAnalysis.txt Edit (233 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (18.9 KiB, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (27.0 KiB, text/plain; charset="utf-8")

information type:

Private → Public

Revision history for this message

Apport retracing service (apport) wrote on 2019-06-08:

StacktraceTop:
TouchpadConfigContainer::sizeHint (this=<optimized out>) at ./kcms/touchpad/src/kcm/touchpadconfigcontainer.cpp:70
QWidgetItemV2::updateCacheIfNecessary (this=0x556844cfcf40) at kernel/qlayoutitem.cpp:724
QWidgetItemV2::updateCacheIfNecessary (this=0x556844cfcf40) at kernel/qlayoutitem.cpp:719
QWidgetItemV2::maximumSize (this=0x556844cfcf40) at kernel/qlayoutitem.cpp:812
QWidgetItemV2::maximumSize (this=0x556844cfcf40) at kernel/qlayoutitem.cpp:806

Revision history for this message

Apport retracing service (apport) wrote on 2019-06-08: Stacktrace.txt

Stacktrace.txt Edit (24.8 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2019-06-08: StacktraceSource.txt

StacktraceSource.txt Edit (11.0 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2019-06-08: ThreadStacktrace.txt

ThreadStacktrace.txt Edit (32.6 KiB, text/plain)

Changed in systemsettings (Ubuntu):
importance:	Undecided → Medium
summary:	systemsettings5 crashed with SIGSEGV in - QWidgetItemV2::updateCacheIfNecessary() + TouchpadConfigContainer::sizeHint()
tags:	removed: need-amd64-retrace

Revision history for this message

Rik Mills (rikmills) wrote on 2019-06-08:

Previously reported upstream to KDE in https://bugs.kde.org/show_bug.cgi?id=407783

Changed in systemsettings (Ubuntu):
status:	New → Confirmed

Bug Watch Updater (bug-watch-updater) on 2019-06-08

Changed in systemsettings:
importance:	Unknown → High

Revision history for this message

In KDE Bug Tracking System #408325, Nate-b (nate-b) wrote on 2019-06-13:

#14

*** Bug 408627 has been marked as a duplicate of this bug. ***

Revision history for this message

In KDE Bug Tracking System #408325, Yanpas (yanpaso) wrote on 2019-06-14:

#15

Created attachment 120868
New crash information added by DrKonqi

systemsettings5 (5.16.0) using Qt 5.12.2

- What I was doing when the application crashed:
i dont' have touchpad and open touchpad setting and get crash

- Unusual behavior I noticed:

- Custom settings of the application:

-- Backtrace (Reduced):
#7 0x00007f389e2ef7c2 in QWidgetItemV2::updateCacheIfNecessary() const () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8 0x00007f389e2efafd in QWidgetItemV2::maximumSize() const () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
[...]
#10 0x00007f389e2e4d48 in QBoxLayout::sizeHint() const () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f389e2eb8d7 in QLayout::totalSizeHint() const () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f389e458baa in QScrollArea::sizeHint() const () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5

Revision history for this message

In KDE Bug Tracking System #408325, Arojas-8 (arojas-8) wrote on 2019-06-14:

#16

*** Bug 408713 has been marked as a duplicate of this bug. ***

Revision history for this message

In KDE Bug Tracking System #408325, Cfeck (cfeck) wrote on 2019-06-17:

#17

*** Bug 408815 has been marked as a duplicate of this bug. ***

Revision history for this message

In KDE Bug Tracking System #408325, Cfeck (cfeck) wrote on 2019-06-17:

#18

*** Bug 408794 has been marked as a duplicate of this bug. ***

Revision history for this message

In KDE Bug Tracking System #408325, Cfeck (cfeck) wrote on 2019-06-17:

#19

*** Bug 408745 has been marked as a duplicate of this bug. ***

Revision history for this message

In KDE Bug Tracking System #407783, Cfeck (cfeck) wrote on 2019-06-17:

#11

*** This bug has been marked as a duplicate of bug 408325 ***

Revision history for this message

In KDE Bug Tracking System #408325, Cfeck (cfeck) wrote on 2019-06-17:

#20

*** Bug 407783 has been marked as a duplicate of this bug. ***

Revision history for this message

In KDE Bug Tracking System #408325, Nate-b (nate-b) wrote on 2019-06-17:

#21

*** Bug 408844 has been marked as a duplicate of this bug. ***

Bug Watch Updater (bug-watch-updater) on 2019-06-18

Changed in systemsettings:
status:	Unknown → Invalid

Rik Mills (rikmills) on 2019-06-18

Changed in systemsettings:
importance:	High → Unknown
status:	Invalid → Unknown

Bug Watch Updater (bug-watch-updater) on 2019-06-18

Changed in systemsettings:
importance:	Unknown → Critical

Revision history for this message

In KDE Bug Tracking System #408325, SiLeNcE (bastian-beischer) wrote on 2019-06-18:

#22

*** Bug 408839 has been marked as a duplicate of this bug. ***

Revision history for this message

In KDE Bug Tracking System #408325, SiLeNcE (bastian-beischer) wrote on 2019-06-18:

#23

I believe this bug is triggered for X11 on systems which do not actually have a touchpad. I think the problem is:

Since

https://github.com/KDE/plasma-desktop/commit/ce84d6ab4babc80707f4e4c1deb02cfe3ac5b7bb

TouchpadConfigContainer::m_plugin is null, because TouchpadBackend::implementation() does not have m_mode properly set. setMode() is supposed to be called in XlibBackend::findTouchpad(), but this goes through the list of touchpads, which can be none, and calls setMode() on each such touchpad.

So setMode() is never actually called and m_mode is (implicitly!) initialized to WaylandLibinput (since it does not get set in TouchpadBackend constructor). Then getMode() does not return any of the expected cases in isPlatformX11() branch, which means m_plugin stays a nullptr and then there is a crash in TouchpadConfigContainer::sizeHint().

Revision history for this message

In KDE Bug Tracking System #408325, SiLeNcE (bastian-beischer) wrote on 2019-06-18:

#24

Proposed fix:

--- a/kcms/touchpad/src/kcm/touchpadconfigcontainer.cpp 2019-06-07 18:08:11.000000000 +0200
+++ b/kcms/touchpad/src/kcm/touchpadconfigcontainer.cpp 2019-06-18 14:20:11.853007246 +0200
@@ -42,7 +42,7 @@
         if (backend->getMode() == TouchpadInputBackendMode::XLibinput) {
             m_plugin = new TouchpadConfigLibinput(this, backend);
         }
- else if (backend->getMode() == TouchpadInputBackendMode::XSynaptics) {
+ else {
             m_plugin = new TouchpadConfigXlib(this, backend);
         }
     } else if (KWindowSystem::isPlatformWayland()) {
diff -urN a/kcms/touchpad/src/touchpadbackend.h b/kcms/touchpad/src/touchpadbackend.h
--- a/kcms/touchpad/src/touchpadbackend.h 2019-06-07 18:08:11.000000000 +0200
+++ b/kcms/touchpad/src/touchpadbackend.h 2019-06-18 14:18:57.915432036 +0200
@@ -25,9 +25,10 @@
#include <QVariantHash>

enum class TouchpadInputBackendMode {
- WaylandLibinput = 0,
- XLibinput = 1,
- XSynaptics = 2
+ Unset = 0,
+ WaylandLibinput = 1,
+ XLibinput = 2,
+ XSynaptics = 3
};

class Q_DECL_EXPORT TouchpadBackend : public QObject
@@ -35,7 +36,7 @@
Q_OBJECT

protected:
- explicit TouchpadBackend(QObject *parent) : QObject(parent) {}
+ explicit TouchpadBackend(QObject *parent) : QObject(parent), m_mode(TouchpadInputBackendMode::Unset) {}
void setMode(TouchpadInputBackendMode mode);

public:

which will create the Synaptics backend as m_plugin in case of no touchpad (as in Plasma 5.15), which will show a message 'No touchpad found' and disable all controls.

Revision history for this message

In KDE Bug Tracking System #408325, Casey-jensen (casey-jensen) wrote on 2019-06-18:

#25

So is this only an issue in X? I haven't been on my test machine (Surface Pro 2 w/ keyboard and touchpad cover) for a few days, but if all works in Wayland, I'll just make the switch over to a Wayland Session. That way I also get the added onscreen keyboard! :D

Thanks to all that are looking into and working on this! Please let me know if you need any additional info/data.

Revision history for this message

In KDE Bug Tracking System #408325, Nate-b (nate-b) wrote on 2019-06-18:

#26

Thanks so much for the investigation and the proposed patch, Bastian! Would you mind submitting it using Phabricator? It's dead simple to just copy-and-paste your diff into https://phabricator.kde.org/differential/diff/create/. Please mark @ngraham, @romangg, @atulbi, and #plasma as reviewers.

Full documentation is available at https://community.kde.org/Infrastructure/Phabricator

Revision history for this message

In KDE Bug Tracking System #408325, SiLeNcE (bastian-beischer) wrote on 2019-06-18:

#27

Nate, sure.

https://phabricator.kde.org/D21884

Revision history for this message

In KDE Bug Tracking System #408325, Nate-b (nate-b) wrote on 2019-06-18:

#28

Thanks very much! I'll see if we can get some eyeballs on that in the next few days.

Revision history for this message

In KDE Bug Tracking System #408325, Eric Donkersloot (ericd) wrote on 2019-06-18:

#29

Hi guys,

I guess I'm subscribed to the wrong bug report. This is teh behaviour I'm seeing since 5.16:

On 5.15.5 (libunput installed, no xf86-input-synaptics installed):

1. Everything works fine, no crashes whatsoever
2. When I connect a bluetooth mouse, the touchpad disables as expected
3. When I disconnect the bluetooth mouse again, the touchpad is re-enabled

On 5.16 (libinput installed, no xf86-input-synatics installed):

1. kdeinit5 crashes after logging in
2. When I connect a bluetooth mouse, the touchpad disables as expected
3. When I disconnect the bluetooth mouse again, the touchpad is _not_ re-enabled

A workaround for the behaviour above:

1. Manually enable the touchpad again
2. Log out and log in again
3. Install xf86-input-synaptics, this will also prevent kdeinit5 from crashing

My system:

Lenovo X1 Carbon 6th gen
Operating System: Arch Linux
KDE Plasma Version: 5.16.0
KDE Frameworks Version: 5.59.0
Qt Version: 5.12.4
Kernel Version: 5.1.11-arch1-1-ARCH
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-8550U CPU @ 1.80GHz
Memory: 15,4 GiB of RAM

Should a file another bug?

Revision history for this message

In KDE Bug Tracking System #408325, Nate-b (nate-b) wrote on 2019-06-19:

#30

Git commit b7127724309a136a1a8647341df9f5ad02b22698 by Nate Graham, on behalf of Bastian Beischer.
Committed on 19/06/2019 at 16:39.
Pushed by ngraham into branch 'Plasma/5.16'.

[Touchpad KCM] Do not crash in case there is no touchpad

Summary:
FIXED-IN: 5.16.2

Reviewers: ngraham, romangg, atulbi, #plasma, davidedmundson

Reviewed By: ngraham, romangg, #plasma, davidedmundson

Subscribers: davidedmundson, plasma-devel

Tags: #plasma

Differential Revision: https://phabricator.kde.org/D21884

M +4 -1 kcms/touchpad/src/kcm/touchpadconfigcontainer.cpp
M +5 -4 kcms/touchpad/src/touchpadbackend.h

https://commits.kde.org/plasma-desktop/b7127724309a136a1a8647341df9f5ad02b22698

Revision history for this message

In KDE Bug Tracking System #408325, Nate-b (nate-b) wrote on 2019-06-19:

#31

Thanks so much, Bastian!

Eric, that's a separate issue. Please file a new bug for it.

Bug Watch Updater (bug-watch-updater) on 2019-06-20

Changed in systemsettings:
importance:	Critical → High
status:	Unknown → Fix Released

Revision history for this message

Brian Murray (brian-murray) wrote on 2020-08-18:

#32

The Eoan Ermine has reached end of life, so this bug will not be fixed for that release

Changed in systemsettings (Ubuntu Eoan):
status:	Confirmed → Won't Fix

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systemsettings5 crashed with SIGSEGV in TouchpadConfigContainer::sizeHint()

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