Bug 439860

Application: systemsettings5 (5.14.5)

Qt Version: 5.15.1
Frameworks Version: 5.54.0
Operating System: Linux 5.10.36-amd64-desktop x86_64
Distribution: Deepin 20.2.2

-- Information about the crash:
When I enter "Window Decoration" in the kde system settings of Deepin's desktop environment dde, the kde system settings always crash.

The crash can be reproduced every time.

-- Backtrace:
Application: 系统设置 (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f94a9dfc8c0 (LWP 629))]

Thread 11 (Thread 0x7f94565a6700 (LWP 668)):
#0  0x00007f94acac800c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f94ae2a5c0b in QWaitConditionPrivate::wait (deadline=..., this=0x37a89d0) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x3990280, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f94ad94075c in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f94ad940bd1 in ?? () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f94ae29f9a8 in QThreadPrivate::start (arg=0x39901e0) at thread/qthread_unix.cpp:329
#6  0x00007f94acac1fa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007f94adf8860f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 10 (Thread 0x7f945c94f700 (LWP 667)):
#0  0x00007f94adf795d4 in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f94ac1ddae0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94ac197c0f in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94ac1980e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f94ac19825c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94ae4c8b0b in QEventDispatcherGlib::processEvents (this=0x7f9450000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f94ae470d93 in QEventLoop::exec (this=this@entry=0x7f945c94ecc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#7  0x00007f94ae29e72e in QThread::exec (this=this@entry=0x37c28e0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#8  0x00007f94ad5de2e5 in QQmlThreadPrivate::run (this=0x37c28e0) at qml/ftw/qqmlthread.cpp:155
#9  0x00007f94ae29f9a8 in QThreadPrivate::start (arg=0x37c28e0) at thread/qthread_unix.cpp:329
#10 0x00007f94acac1fa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f94adf8860f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 9 (Thread 0x7f945dfe0700 (LWP 666)):
#0  0x00007f94ac1e1ec4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f94ac19791e in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94ac1980b7 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94ac19825c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f94ae4c8b0b in QEventDispatcherGlib::processEvents (this=0x7f9458000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f94ae470d93 in QEventLoop::exec (this=this@entry=0x7f945dfdfcc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f94ae29e72e in QThread::exec (this=this@entry=0x35a4dc0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f94ad5de2e5 in QQmlThreadPrivate::run (this=0x35a4dc0) at qml/ftw/qqmlthread.cpp:155
#8  0x00007f94ae29f9a8 in QThreadPrivate::start (arg=0x35a4dc0) at thread/qthread_unix.cpp:329
#9  0x00007f94acac1fa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f94adf8860f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 8 (Thread 0x7f946df4f700 (LWP 644)):
#0  0x00007f94adf795d4 in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f94ac1ddae0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94ac197c0f in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94ac1980e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f94ac19825c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94ae4c8b0b in QEventDispatcherGlib::processEvents (this=0x7f9460000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f94ae470d93 in QEventLoop::exec (this=this@entry=0x7f946df4ecc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#7  0x00007f94ae29e72e in QThread::exec (this=this@entry=0x27749b0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#8  0x00007f94ad5de2e5 in QQmlThreadPrivate::run (this=0x27749b0) at qml/ftw/qqmlthread.cpp:155
#9  0x00007f94ae29f9a8 in QThreadPrivate::start (arg=0x27749b0) at thread/qthread_unix.cpp:329
#10 0x00007f94acac1fa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f94adf8860f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 7 (Thread 0x7f946ffff700 (LWP 641)):
#0  0x00007f94adf795d4 in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f94ac1ddae0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f94ac197c0f in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94ac1980e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f94ac19825c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94ae4c8b0b in QEventDispatcherGlib::processEvents (this=0x7f9468000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f94ae470d93 in QEventLoop::exec (this=this@entry=0x7f946fffecc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#7  0x00007f94ae29e72e in QThread::exec (this=this@entry=0x2316a80) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#8  0x00007f94ad5de2e5 in QQmlThreadPrivate::run (this=0x2316a80) at qml/ftw/qqmlthread.cpp:155
#9  0x00007f94ae29f9a8 in QThreadPrivate::start (arg=0x2316a80) at thread/qthread_unix.cpp:329
#10 0x00007f94acac1fa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f94adf8860f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7f9494f8c700 (LWP 635)):
#0  0x00007f94acac800c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f949ada0b6b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#2  0x00007f949ada0787 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007f94acac1fa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f94adf8860f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7f948cf8c700 (LWP 634)):
#0  0x00007f94acac800c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f949ada0b6b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#2  0x00007f949ada0787 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007f94acac1fa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f94adf8860f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7f949578d700 (LWP 633)):
#0  0x00007f94acac800c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f949ada0b6b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#2  0x00007f949ada0787 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007f94acac1fa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f94adf8860f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7f94a0bb9700 (LWP 632)):
#0  0x00007f94acac800c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f949ada0b6b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#2  0x00007f949ada0787 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#3  0x00007f94acac1fa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f94adf8860f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7f94a3fff700 (LWP 631)):
#0  0x00007f94ae4c89fe in QThreadData::canWaitLocked (this=<optimized out>) at kernel/qeventdispatcher_glib.cpp:258
#1  postEventSourcePrepare (s=0x7f949c004b90, timeout=0x7f94a3ffead4) at kernel/qeventdispatcher_glib.cpp:260
#2  0x00007f94ac197669 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f94ac19806b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f94ac19825c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f94ae4c8b0b in QEventDispatcherGlib::processEvents (this=0x7f949c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f94ae470d93 in QEventLoop::exec (this=this@entry=0x7f94a3ffecb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#7  0x00007f94ae29e72e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#8  0x00007f94ae76e585 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f94ae29f9a8 in QThreadPrivate::start (arg=0x7f94ae7edd80) at thread/qthread_unix.cpp:329
#10 0x00007f94acac1fa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f94adf8860f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7f94a9dfc8c0 (LWP 629)):
[KCrash Handler]
#6  0x00007f945e06d630 in KDecoration2::Decoration::client() const () from /lib/x86_64-linux-gnu/libkdecorations2.so.5
#7  0x00007f945c11f157 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kwin/decoration/libdecorationplugin.so
#8  0x00007f945c127ab7 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kwin/decoration/libdecorationplugin.so
#9  0x00007f94ad59f5d7 in QQmlPropertyData::writeProperty (flags=..., value=0x7ffd9a8446b8, target=<optimized out>, this=<optimized out>) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/qml/qqmlpropertydata_p.h:375
#10 QObjectPointerBinding::write (this=0x38f0600, result=..., isUndefined=<optimized out>, flags=...) at qml/qqmlbinding.cpp:715
#11 0x00007f94ad5a0d8a in QQmlNonbindingBinding::doUpdate (this=0x38f0600, watcher=..., flags=..., scope=...) at ../../include/QtQml/5.15.1/QtQml/private/../../../../../src/qml/jsruntime/qv4scopedvalue_p.h:242
#12 0x00007f94ad59d513 in QQmlBinding::update (this=0x38f0600, flags=...) at qml/qqmlbinding.cpp:194
#13 0x00007f94ad575873 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:104
#14 0x00007f94ad51f381 in QQmlData::signalEmitted (object=0x38f0f30, index=<optimized out>, a=0x0) at qml/qqmlengine.cpp:834
#15 0x00007f94ae4a62f5 in doActivate<false> (sender=0x38f0f30, signal_index=3, argv=argv@entry=0x0) at kernel/qobject_p.h:110
#16 0x00007f94ae4a0829 in QMetaObject::activate (sender=<optimized out>, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3959
#17 0x00007f94ad53c270 in QQmlContextPrivate::dropDestroyedQObject (this=0x38f4a30, name=..., destroyed=<optimized out>) at qml/qqmlcontext_p.h:86
#18 0x00007f94ae4a671c in QtPrivate::QSlotObjectBase::call (a=0x7ffd9a846430, r=0x38f0f30, this=0x3902590) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#19 doActivate<false> (sender=0x38ef420, signal_index=0, argv=0x7ffd9a846430) at kernel/qobject.cpp:3886
#20 0x00007f94ae4a0652 in QMetaObject::activate (sender=sender@entry=0x38ef420, m=m@entry=0x7f94ae746b20 <QObject::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffd9a846430) at kernel/qobject.cpp:3946
#21 0x00007f94ae4a06ff in QObject::destroyed (this=this@entry=0x38ef420, _t1=<optimized out>, _t1@entry=0x38ef420) at .moc/moc_qobject.cpp:219
#22 0x00007f94ae4a483e in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:992
#23 0x00007f945c98c642 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#24 0x00007f945c98c686 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/org.kde.kdecoration2/kwin5_aurorae.so
#25 0x00007f94ae49e498 in QObject::event (this=0x38ef420, e=0x379fd50) at kernel/qobject.cpp:1301
#26 0x00007f94aeff382e in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#27 0x00007f94aeffa550 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#28 0x00007f94ae472239 in QCoreApplication::notifyInternal2 (receiver=0x38ef420, event=0x379fd50) at ../../include/QtCore/5.15.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#29 0x00007f94ae474da1 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1de0200) at kernel/qcoreapplication.cpp:1819
#30 0x00007f94ae4c9483 in postEventSourceDispatch (s=0x1e35e00) at kernel/qeventdispatcher_glib.cpp:277
#31 0x00007f94ac197f2e in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f94ac1981c8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f94ac19825c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f94ae4c8af4 in QEventDispatcherGlib::processEvents (this=0x1e31f30, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#35 0x00007f94ae470d93 in QEventLoop::exec (this=this@entry=0x7ffd9a846ae0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#36 0x00007f94ae479110 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#37 0x000000000040c59a in main (argc=<optimized out>, argv=<optimized out>) at ./app/main.cpp:71
[Inferior 1 (process 629) detached]

Reported using DrKonqi