Bug 429886

Application: systemsettings5 (5.20.2)

Qt Version: 5.15.2
Frameworks Version: 5.76.0
Operating System: Linux 5.9.10-1-default x86_64
Windowing system: X11
Distribution: "openSUSE Tumbleweed"

-- Information about the crash:
- What I was doing when the application crashed:
I was trying to install new global theme. Also the whole theme sometimes does not install correctly so I have to manually uninstall window decorations and then install them again, this also applies to colours.

The crash can be reproduced sometimes.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault

[New LWP 23321]
[New LWP 23326]
[New LWP 23327]
[New LWP 23537]
[New LWP 23538]
[New LWP 23539]
[New LWP 23557]
[New LWP 23558]
[New LWP 23559]
[New LWP 24064]
[New LWP 24100]
[New LWP 24131]
[New LWP 24132]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
0x00007f26ce9a183f in poll () from /lib64/libc.so.6
[Current thread is 1 (Thread 0x7f26cc077840 (LWP 23318))]

Thread 14 (Thread 0x7f269ffff640 (LWP 24132)):
#0  0x00007f26ce9a183f in poll () from /lib64/libc.so.6
#1  0x00007f26ccb4300e in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f26ccb4312f in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f26cef857fb in QEventDispatcherGlib::processEvents (this=0x7f2694355bb0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f26cef2cc4b in QEventLoop::exec (this=this@entry=0x7f269fffec80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f26ced4bd0e in QThread::exec (this=this@entry=0x5577c5100280) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f26ce282f26 in QQuickPixmapReader::run (this=0x5577c5100280) at /usr/src/debug/libqt5-qtdeclarative-5.15.2-1.1.x86_64/src/quick/util/qquickpixmapcache.cpp:1024
#7  0x00007f26ced4ce51 in QThreadPrivate::start (arg=0x5577c5100280) at thread/qthread_unix.cpp:329
#8  0x00007f26cd5103e9 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f26ce9ac943 in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7f265deda640 (LWP 24131)):
#0  0x00007f26cd5166b2 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f26ced52dcb in QWaitConditionPrivate::wait (deadline=..., deadline=..., this=0x5577c7272c70) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=this@entry=0x5577c2f5ea68, mutex=mutex@entry=0x5577c2f5ea60, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007f26ce32f177 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x5577c2f5ea58) at /usr/include/qt5/QtCore/qdeadlinetimer.h:68
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x5577c2f5e9c0) at /usr/src/debug/libqt5-qtdeclarative-5.15.2-1.1.x86_64/src/quick/scenegraph/qsgthreadedrenderloop.cpp:936
#5  0x00007f26ce331609 in QSGRenderThread::run (this=0x5577c2f5e9c0) at /usr/src/debug/libqt5-qtdeclarative-5.15.2-1.1.x86_64/src/quick/scenegraph/qsgthreadedrenderloop.cpp:1053
#6  0x00007f26ced4ce51 in QThreadPrivate::start (arg=0x5577c2f5e9c0) at thread/qthread_unix.cpp:329
#7  0x00007f26cd5103e9 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f26ce9ac943 in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7f264f7fe640 (LWP 24100)):
#0  0x00007f26ce93129c in __libc_enable_asynccancel () from /lib64/libc.so.6
#1  0x00007f26ce9a1827 in poll () from /lib64/libc.so.6
#2  0x00007f26ccb4300e in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f26ccb4312f in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f26cef857fb in QEventDispatcherGlib::processEvents (this=0x7f263c00fe50, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f26cef2cc4b in QEventLoop::exec (this=this@entry=0x7f264f7fdca0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f26ced4bd0e in QThread::exec (this=this@entry=0x5577c223a640) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f26cdfae675 in QQmlThreadPrivate::run (this=0x5577c223a640) at /usr/src/debug/libqt5-qtdeclarative-5.15.2-1.1.x86_64/src/qml/qml/ftw/qqmlthread.cpp:155
#8  0x00007f26ced4ce51 in QThreadPrivate::start (arg=0x5577c223a640) at thread/qthread_unix.cpp:329
#9  0x00007f26cd5103e9 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f26ce9ac943 in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7f269efc4640 (LWP 24064)):
#0  0x00007f26ce9a183f in poll () from /lib64/libc.so.6
#1  0x00007f26c114a542 in ?? () from /usr/lib64/libpulse.so.0
#2  0x00007f26c113bf89 in pa_mainloop_poll () from /usr/lib64/libpulse.so.0
#3  0x00007f26c113c60f in pa_mainloop_iterate () from /usr/lib64/libpulse.so.0
#4  0x00007f26c113c6c0 in pa_mainloop_run () from /usr/lib64/libpulse.so.0
#5  0x00007f26c114a619 in ?? () from /usr/lib64/libpulse.so.0
#6  0x00007f26c10e75e8 in ?? () from /usr/lib64/pulseaudio/libpulsecommon-13.0.so
#7  0x00007f26cd5103e9 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f26ce9ac943 in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7f264ffff640 (LWP 23559)):
#0  0x00007f26ccb94109 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f26ccb42721 in g_main_context_query () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f26ccb42f88 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f26ccb4312f in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f26cef857fb in QEventDispatcherGlib::processEvents (this=0x7f2644000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f26cef2cc4b in QEventLoop::exec (this=this@entry=0x7f264fffecc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007f26ced4bd0e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f26ced4ce51 in QThreadPrivate::start (arg=0x5577c6ce28c0) at thread/qthread_unix.cpp:329
#8  0x00007f26cd5103e9 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f26ce9ac943 in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7f265ced8640 (LWP 23558)):
#0  0x00007f26ce99d25c in read () from /lib64/libc.so.6
#1  0x00007f26ccb8f44f in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f26ccb4298a in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f26ccb42fb5 in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f26ccb4336b in g_main_loop_run () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f269ca85906 in ?? () from /usr/lib64/libgio-2.0.so.0
#6  0x00007f26ccb6c13e in ?? () from /usr/lib64/libglib-2.0.so.0
#7  0x00007f26cd5103e9 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f26ce9ac943 in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f265d6d9640 (LWP 23557)):
#0  0x00007f26ce9a183f in poll () from /lib64/libc.so.6
#1  0x00007f26ccb4300e in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f26ccb4312f in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f26ccb43181 in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f26ccb6c13e in ?? () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f26cd5103e9 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f26ce9ac943 in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f2689bfc640 (LWP 23539)):
#0  0x00007f26ce9a734d in syscall () from /lib64/libc.so.6
#1  0x00007f26ced4f091 in QtLinuxFutex::_q_futex (val3=0, addr2=0x0, val2=0, val=<optimized out>, op=0, addr=<optimized out>) at thread/qfutex_p.h:133
#2  QtLinuxFutex::futexWait<QBasicAtomicInteger<unsigned int> > (expectedValue=<optimized out>, futex=...) at thread/qfutex_p.h:135
#3  futexSemaphoreTryAcquire_loop<false> (timeout=-1, nn=8589934593, curValue=<optimized out>, u=...) at thread/qsemaphore.cpp:219
#4  futexSemaphoreTryAcquire<false> (timeout=-1, n=<optimized out>, u=...) at thread/qsemaphore.cpp:262
#5  QSemaphore::acquire (this=0x7f26cda93920, n=<optimized out>) at thread/qsemaphore.cpp:326
#6  0x00007f26cd9e2934 in ?? () from /usr/lib64/libQt5Network.so.5
#7  0x00007f26ced4ce51 in QThreadPrivate::start (arg=0x7f26cda93900) at thread/qthread_unix.cpp:329
#8  0x00007f26cd5103e9 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f26ce9ac943 in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f268a3fd640 (LWP 23538)):
#0  0x00007f26ce9a183f in poll () from /lib64/libc.so.6
#1  0x00007f26ccb4300e in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f26ccb4312f in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f26cef857fb in QEventDispatcherGlib::processEvents (this=0x7f2660000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f26cef2cc4b in QEventLoop::exec (this=this@entry=0x7f268a3fccc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f26ced4bd0e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f26ced4ce51 in QThreadPrivate::start (arg=0x5577c257bca0) at thread/qthread_unix.cpp:329
#7  0x00007f26cd5103e9 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f26ce9ac943 in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f2693ec6640 (LWP 23537)):
#0  0x00007f26ce99d25c in read () from /lib64/libc.so.6
#1  0x00007f26ccb8f44f in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f26ccb4298a in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f26ccb42fb5 in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f26ccb4312f in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f26cef857fb in QEventDispatcherGlib::processEvents (this=0x7f266c01d4d0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f26cef2cc4b in QEventLoop::exec (this=this@entry=0x7f2693ec5cc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#7  0x00007f26ced4bd0e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#8  0x00007f26ced4ce51 in QThreadPrivate::start (arg=0x5577c5861b60) at thread/qthread_unix.cpp:329
#9  0x00007f26cd5103e9 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f26ce9ac943 in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f26b560e640 (LWP 23327)):
#0  0x00007f26ce9a183f in poll () from /lib64/libc.so.6
#1  0x00007f26ccb4300e in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f26ccb4312f in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f26cef857fb in QEventDispatcherGlib::processEvents (this=0x7f2698000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f26cef2cc4b in QEventLoop::exec (this=this@entry=0x7f26b560dca0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f26ced4bd0e in QThread::exec (this=this@entry=0x5577c07f0820) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f26cdfae675 in QQmlThreadPrivate::run (this=0x5577c07f0820) at /usr/src/debug/libqt5-qtdeclarative-5.15.2-1.1.x86_64/src/qml/qml/ftw/qqmlthread.cpp:155
#7  0x00007f26ced4ce51 in QThreadPrivate::start (arg=0x5577c07f0820) at thread/qthread_unix.cpp:329
#8  0x00007f26cd5103e9 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f26ce9ac943 in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f26b7788640 (LWP 23326)):
#0  0x00007f26ce9a183f in poll () from /lib64/libc.so.6
#1  0x00007f26ccb4300e in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f26ccb4312f in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f26cef857fb in QEventDispatcherGlib::processEvents (this=0x7f26a4000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f26cef2cc4b in QEventLoop::exec (this=this@entry=0x7f26b7787ca0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f26ced4bd0e in QThread::exec (this=this@entry=0x5577c0451360) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f26cdfae675 in QQmlThreadPrivate::run (this=0x5577c0451360) at /usr/src/debug/libqt5-qtdeclarative-5.15.2-1.1.x86_64/src/qml/qml/ftw/qqmlthread.cpp:155
#7  0x00007f26ced4ce51 in QThreadPrivate::start (arg=0x5577c0451360) at thread/qthread_unix.cpp:329
#8  0x00007f26cd5103e9 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f26ce9ac943 in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f26c909f640 (LWP 23321)):
#0  0x00007f26ce9a183f in poll () from /lib64/libc.so.6
#1  0x00007f26ccb4300e in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f26ccb4312f in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f26cef857fb in QEventDispatcherGlib::processEvents (this=0x7f26bc000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f26cef2cc4b in QEventLoop::exec (this=this@entry=0x7f26c909ec70, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f26ced4bd0e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f26cdc1e7c7 in ?? () from /usr/lib64/libQt5DBus.so.5
#7  0x00007f26ced4ce51 in QThreadPrivate::start (arg=0x7f26cdc8c420) at thread/qthread_unix.cpp:329
#8  0x00007f26cd5103e9 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f26ce9ac943 in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f26cc077840 (LWP 23318)):
[KCrash Handler]
#4  std::__atomic_base<QThread*>::load (__m=std::memory_order_acquire, this=0x3b) at /usr/include/c++/10/bits/atomic_base.h:741
#5  std::atomic<QThread*>::load (__m=std::memory_order_acquire, this=0x3b) at /usr/include/c++/10/atomic:523
#6  QAtomicOps<QThread*>::loadAcquire<QThread*> (_q_value=...) at ../../include/QtCore/../../src/corelib/thread/qatomic_cxx11.h:251
#7  QBasicAtomicPointer<QThread>::loadAcquire (this=0x3b) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:255
#8  QObject::thread (this=this@entry=0x5577c6b3a490) at kernel/qobject.cpp:1487
#9  0x00007f26cef5dfeb in QObject::killTimer (this=this@entry=0x5577c6b3a490, id=-1622737440) at kernel/qobject.cpp:1795
#10 0x00007f26cef689f9 in QTimer::stop (this=this@entry=0x5577c6b3a490) at kernel/qtimer.cpp:243
#11 0x00007f26cef68a6f in QTimer::start (this=0x5577c6b3a490) at kernel/qtimer.cpp:211
#12 0x00007f26cef64866 in QtPrivate::QSlotObjectBase::call (a=0x7ffe1a2816c0, r=0x5577c2022280, this=0x5577c03f80f0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#13 doActivate<false> (sender=0x5577c3f2b420, signal_index=9, argv=argv@entry=0x7ffe1a2816c0) at kernel/qobject.cpp:3886
#14 0x00007f26cef5dbc0 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f26af92d2a0 <KNSCore::Engine::staticMetaObject>, local_signal_index=local_signal_index@entry=6, argv=argv@entry=0x7ffe1a2816c0) at kernel/qobject.cpp:3946
#15 0x00007f26af8d1d95 in KNSCore::Engine::signalEntryChanged (this=<optimized out>, _t1=...) at /usr/src/debug/knewstuff-5.76.0-1.1.x86_64/build/src/core/KF5NewStuffCore_autogen/EWIEGA46WW/moc_engine.cpp:578
#16 0x00007f26af8e3384 in KNSCore::Engine::install (this=0x5577c3f2b420, entry=..., linkId=1) at /usr/src/debug/knewstuff-5.76.0-1.1.x86_64/src/core/engine.cpp:553
#17 0x00007f26af960e82 in ItemsModel::installItem (this=0x5577c46fedb0, index=<optimized out>, linkId=<optimized out>) at /usr/src/debug/knewstuff-5.76.0-1.1.x86_64/src/qtquick/quickitemsmodel.cpp:412
#18 0x00007f26af96319b in ItemsModel::updateItem (index=<optimized out>, this=<optimized out>) at /usr/src/debug/knewstuff-5.76.0-1.1.x86_64/src/qtquick/quickitemsmodel.cpp:419
#19 ItemsModel::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /usr/src/debug/knewstuff-5.76.0-1.1.x86_64/build/src/qtquick/newstuffqmlplugin_autogen/EWIEGA46WW/moc_quickitemsmodel.cpp:219
#20 0x00005577bf098170 in QArrayData::shared_null ()
#21 0x00000003bf098170 in ?? ()
#22 0x0000000000000000 in ?? ()
[Inferior 1 (process 23318) detached]

Possible duplicates by query: bug 404056.

Reported using DrKonqi